5
QuizMultiple Choice

Introduction to Stoichiometry — Quiz

Question 5 • Chemistry

The balanced chemical equation for the reaction of copper Cu and silver nitrate open paren AgNO sub 3 close paren is shown. Cu plus 2 AgNO sub 3 rightarrow 2 Ag plus Cu open paren NO sub 3 close paren sub 2 How many moles of copper must react to form 3 point 5 0 mol of Ag ?

Answer
A
0 point 1 7 5 mol
B
1 point 7 5 mol
C
7 point 0 0 mol
D
17 point 0 mol

Explanation

The balanced equation shows that 1 mol of Cu produces 2 mol of Ag. To form 3.50 mol Ag, divide by 2: 3.50 mol Ag × (1 mol Cu / 2 mol Ag) = 1.75 mol Cu. Therefore, the correct choice is 1.75 mol.

AI-written and checked against the verified answer.

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