Question

6. Given the following equation: Cu + 2AgNO3 ---> Cu(NO3)2 + 2 Ag How many moles of Cu are needed to react with 3.50 moles of AgNO3?
A. 2 moles Cu
B. 1 mole Cu
C. 1.75 moles Cu
D. 7 moles Cu

Answer 1

c - use the ratios from the balanced equation; 3.50 mol AgNO3 x (1 mol Cu / 2 mol AgNO3) = 1.75 mol Cu