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10 cards from this deck
Determine concentration of reducing agents
MnO4−\text{MnO}_4^-MnO4− changes colour; no separate indicator needed
First permanent pale pink colour
Cl−\text{Cl}^-Cl− ions oxidised by MnO4−\text{MnO}_4^-MnO4−, giving wrong results
Read from top of meniscus (consistently for initial & final)
5 electrons needed
1:5 (1 mol MnO4−\text{MnO}_4^-MnO4− reacts with 5 mol Fe2+\text{Fe}^{2+}Fe2+)
At least 2 titres within ±0.10 cm³ of each other
MnO4−\text{MnO}_4^-MnO4− deep purple; Mn2+\text{Mn}^{2+}Mn2+ very pale pink
n=c×V1000n = c \times \frac{V}{1000}n=c×1000V (V in cm³)
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