Potassium chromate (K2CrO4) is sometimes used with other compounds to check for the presence of silver. Which of these formulas is correct for a silver-containing precipitate in such a reaction?

Question

A. Ag2CrO4
B. AgCrO4
C. AgNO3
D. AgCI

Answer 1

The correct formula for a silver-containing precipitate formed from the reaction of potassium chromate (K2CrO4) with silver ions (Ag+) is:

A. Ag2CrO4

This compound is known as silver chromate. It is a precipitate that forms when silver ions react with chromate ions in a solution.