Aqua-regia is a freshly prepared mixture of one part of concentrated nitric acid and three parts of concentrated hydrochloric acid. Gold and platinum are the special metals that are insoluble in common reagents but dissolve in aqua-regia. Which metal does not dissolve in aqua regia? Aqua regia (Latin: Royal Water)Read More →
Fast Facts: Aqua Regia The usual ratio of acids is 3 parts hydrochloric acid to 1 part nitric acid. Is HNO3 more acidic than HCl? This means HCl in an aqueous solution is more deprotonated than HNO3, and so HCl is a stronger acid than HNO3. Which is more acidicRead More →
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water. BaS, CaS, and MgS are sparingly soluble. 7. The hydroxides of sodium, potassium, and ammonium are very soluble in water. Is HGS soluble in aqua regia? Hydrogen Sulfide Mercury(II) sulfide is insoluble inRead More →