A student mixes 25.0 mL of 0.0200 M with 50.0 mL of 0.150 M in acidic solution

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

A student mixes 25.0 mL of 0.0200 M

\text{KMnO}_4

with 50.0 mL of 0.150 M

\text{Na}_2\text{C}_2\text{O}_4

in acidic solution. The reaction is

\text{MnO}_4^-+\text{C}_2\text{O}_4^{2-}\rightarrow\text{Mn}^{2+}+\text{CO}_2

(balanced equation not shown). Assuming the reaction goes to completion, which reactant is the limiting reagent? (a)

\text{C}_2\text{O}_4^{2-}

(b) Neither; both are completely consumed. (c)

\text{MnO}_4^-

(d) Cannot be determined with the information given.