5 82gm of silver coin was dissolved in strong nitric acid and excess sodium chloride was added the silver chloride - Chemistry - Basic Concepts in Chemistry

Question

5 82gm of silver coin was dissolved in strong nitric acid and
excess sodium chloride was added the silver chloride precipitate
were dried and weighed 7 2gm calculate % of silver in the coin

Ravjot Kaur · Accepted Answer

Dear student

Ag+ 2HNO3  → AgNO3 + NO2 + H2OAgNO3 + NaCl→ AgCl + NaNO3143
5g of silver chloride would be precipitated by 108g of silveror 1g will be precipitated by 108/143
5g 7
2g will be precipitated by 108/143
5 x 7 2= 5 4gi e 5 82g contains 5
4g pure silver100g will contain: 5 4/5
82×100%= 92 7%
Regards

5.82gm of silver coin was dissolved in strong nitric acid and excess sodium chloride was added.the silver chloride precipitate were dried and weighed 7.2gm. calculate % of silver in the coin.