CAPE Chemistry Unit 2 · 2012 · Paper 1 · Question Q19
A 300\text{ mg} solid sample containing chloride is dissolved in water. The chloride is then precipitated as \text{AgCl} by the addition of silver nitrate to the solution of the sample. The precipitate is collected, washed, dried and weighed, and found to have a mass of 525\text{ mg}.
(R.A.M. of \text{Cl} = 35.5, \text{Ag} = 108)
The mass of chloride present in the sample is
- (A)74.2 mg
- (B)118.0 mg
- (C)129.9 mg
- (D)208.0 mg
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