A 1.10 g sample of copper ore is dissolved and formed are titrated with excess of KI

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

A 1.10 g sample of copper ore is dissolved and

\text{Cu}^{2+}

formed are titrated with excess of KI. The liberated iodine requires

12.12 \text{ mL}

0.10 \text{ N}

\text{Na}_2\text{S}_2\text{O}_3

solution for titration. The % of copper by mass in sample is .....