Practice question
Question
What is the mass of AgCl produced when 17 g of AgNO₃ reacts with excess NaCl? (Molar masses: AgNO₃ = 170 g/mol, AgCl = 143.5 g/mol)
Explanation
Reaction: AgNO₃ + NaCl → AgCl + NaNO₃. Moles of AgNO₃ = 17/170 = 0.1 mol. 1 mol AgNO₃ produces 1 mol AgCl; mass = 0.1 × 143.5 = 14.35 g.
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