Answer to Question #99169 in General Chemistry for Laken

Question

Use the reaction 2AgNO3(Aq)+ H2SO4(aq) = AgSO4(s) + 2H2O(l)
What volume of 0.123 M AgNO3(aq) is needed to form 0.657g of Ag2SO4(s)

Answer 1

The mole ratio of AgNO3 to Ag2SO4 IS 2:1 .0.657 g Ag2SO4 x 1 mol / 312 g = 0.00211 mol Ag2SO4.

0.00211 mol Ag2SO4 x 2 mol AgNO3 / 1 mol Ag2SO4 = 0.00421 mol AgNO3

0.00421 mol AgNO3 x 1 L / 0.123 mol AgNO3 = 0.0342 L = 34.2 mL of AgNO3 solution.Therefore,34.2ml of 0.123M AgNO3 will be required.