Question

3. Potassium cyanide, KCN, is used in extracting gold and silver from
their ores. A 12.63 g sample is found to contain 7.58 g of potassium,
2.33 g of carbon and 2.72 g of nitrogen. Calculate the mass
percentage of potassium, carbon and nitrogen in potassium cyanide.​

Answer 1

Answer:

Mass % of Potassium = 60%

Mass % of Carbon = 18.44%

Mass % of Nitrogen = 21.53%

Explanation:

See the photo for explanations.