Artikel
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Formel
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Ventiltrieb und Hubraum
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PH-Wert-Berechnung
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pH = -log10 c(H+)
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PH-Wert-Berechnung
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c(H+) = 10-pH mol/L
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PH-Wert-Berechnung
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pOH = -log10 c(OH-)
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PH-Wert-Berechnung
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pH = 14 - pOH
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PH-Wert-Berechnung
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pH = 14 - pOH
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PH-Wert-Berechnung
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pH = 14 - 1
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PH-Wert-Berechnung
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pH = 13
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PH-Wert-Berechnung
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pH = 1/2 · (pKS - log10 c(HA))
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c(Salz)
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pH
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=
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pKS(Säure) + log10 ──────
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c(Säure)
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Säure-Base-Titration
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c(M) · V(M)
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c(P)
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=
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────────
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V(P)
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Puffersysteme
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c(Salz)
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pH
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=
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pKS(Säure) + log10 ──────
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c(Säure)
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Motorkennlinien
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Elektromagnetisches Spektrum
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Viskosität
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η = ν · ρ
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π · r4 · g · h · t
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ν
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=
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──────────
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8 · V · l
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2 · r² · g · (ρK - ρFl)
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η
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=
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──────────────
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9 · v · (1 + 2,4 · r/R)
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m² · N · kg · s
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[η]
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=
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─────────
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kg · m³ · m
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Drehmoment
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Fl · ll = Fr · lr
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Drehmoment
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M = F · l
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Drehmoment
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Ml = Mr
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Dichte
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Allgemeine Zustandsgleichung der Gase
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p · V = n · R · T
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V1 · p1
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V2 · p2
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─────
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=
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─────
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T1
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T2
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Chemisches Gleichgewicht
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S + A ⇌ E + H2O
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khin [Produkte] c(C) · c(D)
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K
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=
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──── = ─────── = ───────
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krück [Edukte] c(A) · c(B)
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[Produkte] 0,4 mol Ester · 0,4 mol Wasser
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K
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=
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─────── = ──────────────────────── = 16
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[Edukte] 0,1 mol Carbonsäure · 0,1 mol Alkohol
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Konzentration
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m(X)
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w(X)
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=
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────────
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m(X) + m(Y)
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V(X) · 100%
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σ(X)
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=
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────────
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Vges
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Neutralisation
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s · c(S) · V(S)
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=
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b · c(B) · V(B)
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Wirkungsgrad
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Elektrische Leitfähigkeit
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Elastizitätsmodul
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σZ · 100% FZ · L0
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E
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=
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─────── = ─────
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ε S · ΔL
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FZ · L0 18.000 N · 2.000 mm · mm²
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ΔL
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=
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───── = ────────────────── = 1,4 mm
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S · E 120 mm² · 210.000 N
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Planetengetriebe: Aufbau und Funktion
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zHohl
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i
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=
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1 + ────
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zSonne
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Bruchdehnung
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Brechzahl
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sin α
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n2
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────
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=
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────
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sin 𝜷
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n1
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n1 · sin α
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n2
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=
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───────
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sin 𝜷
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1,000292 · sin 45°
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n2
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=
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────────────
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sin 30°
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1,000292 · 0,7071
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n2
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=
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────────────
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0,5
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Spannung
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Solarenergie
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Leistung
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P = W / t
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Leistung
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P = U · I
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M · 2 · π · n · kW · min
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P
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=
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────────────────
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1.000 W · 60 s
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Stromstärke
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Spezifische Wärmekapazität
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Drehfrequenz
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Ohmsches Gesetz
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Widerstand
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Reihenschaltung
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Zugspannung
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Dehnung
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Wellenlänge
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Plancksches Wirkungsquantum
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Fotometrie
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Itr · 100%
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T
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=
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───────
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Iein
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Iabs · 100%
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A
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=
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───────
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Iein
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Übersetzungsverhältnis
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n1 z2 M2 d2 r2 U2
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i
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=
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── = ── = ── = ── = ── = ──
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n2 z1 M1 d1 r1 U1
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Permanganometrie
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5 · c(Permanganat-Lsg.) · V(Permanganat-Lsg.) = 2 · c(Oxalsäure) · V(Oxals.)
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Permanganometrie
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c(O) = 0,051 mol/L
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s · c(S) · V(S)
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=
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b · c(B) · V(B)
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ΔOZ(Oxi.) · c(Oxi.) · V(Oxi. )
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=
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ΔOZ(Red.) · c(Red.) · V(Red.)
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5 · c(P) · V(P)
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c(O)
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=
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──────────
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2 · V(O)
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5 · 0,01 mol · 102 mL
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c(O)
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=
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──────────────
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L · 2 · 50 mL
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Iodometrie
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Tillmans-Reagenz
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m(DCPIP)
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M(DCPIP)
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───────────
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=
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───────────
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m(Ascorbinsäure)
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M(Ascorbinsäure)
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M(DCPIP) · m(Asc.)
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m(DCPIP)
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=
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─────────────
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M(Asc.)
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290,1 · 1 g
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m(DCPIP)
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=
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─────── = 1,65 g
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176,1
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Calconcarbonsäure
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m = M · n
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Calconcarbonsäure
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n = c · V
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Calconcarbonsäure
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m(Ca) = c · V · M
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Calconcarbonsäure
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m(Ca) = 0,023 mol/L · 0,1 L · 40,08 g · mol−1
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Calconcarbonsäure
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m(Ca) = 0,092 g = 92,2 mg
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c(EDTA) · V(EDTA)
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c(Ca)
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=
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────────────
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V(Ca)
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0,1 mol · 23 mL
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c(Ca)
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=
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──────────
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L · 100 mL
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Konzentration: Anworten
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m(CuSO4)
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w(CuSO4)
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=
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──────────────
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m(CuSO4) + m(Wasser)
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7,3 g
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w(CuSO4)
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=
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────────
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7,3 g + 138 g
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Spezifischer Widerstand
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Parallelschaltung
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1
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1 1
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──
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=
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── + ── + ...
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Rges
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R1 R2
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Enthalpie
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ΔH = -Q = -c · m · ΔT
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Komplexometrische Titration
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c(M) · V(M)
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c(P)
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=
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────────
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V(P)
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Radiocarbonmethode: Lösungen
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A = A0 · 0,5t/HWZ
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log A - log A0
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t
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=
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HWZ · ─────────
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log 0,5
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log 3,5 - log 5,4
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t
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=
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5.730 a · ───────────
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- 0,3
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Mischungstemperatur
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c1 · m1 · T1 + c2 · m2 · T2
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Tm
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=
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──────────────────
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c1 · m1 + c2 · m2
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Wärmedurchgangskoeffizient
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P = k · A · ΔT
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Verdünnungsreihe
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𝜷St
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=
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0,01 mol/L · 158,04 g/mol
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Wirkungsgrad: Lösung
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PH-Skala
|
pH = - log10 c(H+)
|
PH-Skala
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pOH = - log c(OH-)
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PH-Skala
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pH + pOH = 14
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{{{ZL}}}
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Säurestärke
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pKS = 2 · pH + lg c(HA)
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Säurestärke
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pH = 0,5 · (pKS - lg c(HA))
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{{{ZL}}}
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Druck
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p = F / A
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Druck
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ED = p · V
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{{{ZL}}}
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Radiocarbonmethode
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A = 888 Bq · 0,5100 a/5.730 a = 877 Bq
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Aktivität
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A = A0 · 0,5t/HWZ
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Aktivität
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A = 888 Bq · 0,5100 a/5.730 a = 877 Bq
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{{{ZL}}}
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
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{{{NR}}}
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Reaktionsgeschwindigkeit
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k = A·e-EA / R · T
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{{{ZL}}}
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
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{{{NR}}}
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Neutron
|
N = A - Z
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Roheisen
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2 Fe2O3 + 3 C 4 Fe + 3 CO2
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Molare Masse
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M = m / n
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
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{{{NR}}}
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Avogadro-Konstante
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NA = 6,022 · 1023 mol–1
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
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Lichtgeschwindigkeit
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c = 299.792,458 km · s–1
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Lichtgeschwindigkeit
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c = f · λ
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
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Umfangsgeschwindigkeit
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v = π · d · n
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Allgemeine Gaskonstante
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R = p0 · V0,m/T0
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Allgemeine Gaskonstante
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R = 83,145 hPa · L · mol-1 · K-1
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
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{{{ist}}}
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{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
|
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Fallbeschleunigung
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Fg = m · g
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
|
{{{NL}}}
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{{{NR}}}
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Gewichtskraft
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Fg = m · g
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
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{{{NR}}}
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POH-Wert
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pOH = - log c(OH-)
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POH-Wert
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pH + pOH = 14
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POH-Wert
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pOH = 14 - pH
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Kinetische Energie
|
Ekin = 0,5 · m · v2
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Kinetische Energie
|
Epot = Ekin
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
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Potentielle Energie
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Epot = m · g · h
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Potentielle Energie
|
Epot = Ekin
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
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{{{BR}}}
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{{{NL}}}
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{{{NR}}}
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Widerstandsschweißen
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Q = R · I² · t
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{{{ZL}}}
|
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{{{ZR}}}
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{{{BL}}}
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{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
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Wärmemenge
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Q = c · m · ΔT
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Wärmemenge
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Q = P · t
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
|
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Elektrische Energie
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Eel = P · t
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Elektrische Energie
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Eel = U · I · t
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Elektrische Energie
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Eel = R · I² · t
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{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
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{{{NR}}}
|
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Elektrophile Addition
|
AE
|
{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
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Regression
|
I = 172,9 mA/g · m(NaCl) + 6,4 mA
|
Regression
|
m(NaCl) = (I – 6,4 mA) · g / 172,9 mA
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
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Frequenz
|
f = c/λ
|
Frequenz
|
f = E/ℎ
|
{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
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Nucleophile Substitution
|
SN
|
{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
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Elektrophile Substitution
|
SE
|
{{{ZL}}}
|
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{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Wasserhärte
|
1°dH ≙ 0,179 mmol/L Erdalkalimetall-Ionen ≙ 7,19 mg MgO/L ≙ 10 mg CaO/L
|
Wasserhärte
|
1 mmol Erdalkalimetall-Ionen ≙ 5,608 °dH
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Nucleophile Addition
|
AN
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Oxonium
|
H2O + H+H3O+
|
Oxonium
|
pH = - log10 c(H+)
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Fotosynthese
|
6 CO2 + 6 H2O → C6H12O6 + 6 O2
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Radikalische Substitution
|
SR
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Schmelzwärme
|
Q = q · m
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|
Verdampfungswärme
|
Q = r · m
|
{{{ZL}}}
|
|
{{{ZR}}}
|
{{{BL}}}
|
{{{ist}}}
|
{{{BR}}}
|
{{{NL}}}
|
|
{{{NR}}}
|
|