Question

Name the liquid in which gold is soluble. How is this liquid prepared?

Answer 1

Explanation:

Aqua regia is the correct answer it is a liquid in which gold is soluble.Aqua regia must be prepared and used in a fume hood. To prepare, combine three (3) parts of hydrochloric acid to one (1) part nitric acid in a glass container. The hydrochloric acid must be measured into the glassware first, and then the nitric acid is slowly added. Never exceed 38% nitric acid.

this is your answer

Answer 2

Explanation:

Gold is soluble in aquaregia, which is formed when Nitric acid and Hydrochloric acid combines in 1 : 3 ratio. Aqua regia = (HNO3 + 3HCl) Following reaction takes place when gold dissolved in aquaregia. Au + 3NO−3 + 6 H+ → Au3+ + 3 NO2 + 3 H2O Au3+ + 4Cl− → AuCl4- The dissolved gold can be obtained back by changing the pH of the solution.