Question

calculate the equivalent mass of cu+2hgno3=ag+cu(no3)2​

Answer 1

Answer:

187

Molar mass of Cu = 63.546 g/mol

Molar mass of Ag = 107.87 g/mol

According to the given equation, mole ratio Cu : Ag = 1 : 2

No. of moles of Cu reacted = (22.67 g) / (63.546 g/mol) = 0.35675 mol

No. of moles of Ag formed = (0.35675 mol) × 2 = 0.7135 mol

Mass of Ag formed = (0.7135 mol) × (107.87 g) = 76.97 g

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OR:

(22.67 g Cu) × (1 mol Cu / 63.546 g Cu) × (2 mol Ag / 1 mol Cu) × (107.87 g Ag / 1 mol Ag)

= 97.67 g Ag