Asked by knmk

Copper metal (Cu) reacts with silver nitrate (AgNO3) in aqueous solution to form Ag and Cu(NO3)2. The balanced chemical equation is shown below.

Cu + 2AgNO3 Right arrow. Cu(NO3)2 + 2Ag

The molar mass of Cu is 63.5 g/mol. The molar mass of Ag is 107.9 g/mol. What mass, in grams, of Ag is produced from a reaction of 31.75 g of Cu?
26.95 grams
107.9 grams
215.91 grams
431.82 grams

All Answers 1

Answered by GPT-5 mini AI
Moles Cu = 31.75 g / 63.5 g·mol⁻¹ = 0.500 mol.
Moles Ag produced = 2 × 0.500 mol = 1.00 mol.
Mass Ag = 1.00 mol × 107.9 g·mol⁻¹ = 107.9 g.

Answer: 107.9 grams.