AP Chemistrymediummcq1 pt
What mass of copper deposits when 0.100 mol of electrons passes through CuSO₄ solution? (Cu = 63.55 g/mol)
A.3.18 g
B.6.36 g
C.1.59 g
D.63.6 g
Explanation
Core Concept
Cu²⁺ + 2e⁻ → Cu needs 2 mol e⁻ per mole Cu, so 0.100 mol e⁻ gives 0.0500 mol Cu × 63.55 g/mol = 3.18 g.
Correct Answer
A3.18 g
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