Answer to Question #219018 in General Chemistry for ana

Question

What mass of silver nitrate, AgNO₃₍ₐᵩ₎, is needed to react with solid copper to produce 525 kg of copper (II) nitrate, Cu(NO₃)₂₍ₐᵩ₎? Cu₍ₛ₎ + 2AgNO₃₍ₐᵩ₎ --> 2Ag₍ₛ₎ + Cu(NO₃)₂₍ₐᵩ₎ 

Answer 1

Cu(s) + 2 AgNO₃ (aq) $\to$ 2 Ag(s) + Cu(NO₃)₂ (aq)

moles of Cu(NO₃)₂ present = 525000g / 187.56g/mol = 2799.10 mol

mass of AgNO₃ requires =

2799.10 mol of Cu(NO₃)₂ × $\frac{2mol of AgNO_3}{1mol of Cu(NO_3)_2}$ × 169.87g/mol

= 950966.23 g = 950.96Kg