Question

write the balanced chemical equation of platinum is placed in Aqua regia​

Answer 1

A balanced chemical equation of platinum placed in Aqua Regia can be written as follows:

3Pt(s) + 4HNO_3(aq) + 18HCl(aq) --> 3H_2PtCl_6(aq) + 4NO(g) + 8H2_O(l)

• Aqua Regia is a mixture of concentrated Nitric acid as well as Hydrochloric Acid.
• Nitric acid is present 1 part per volume and Hydrochloric acid is present 3 parts per volume.
• Aqua Regia reacts with noble metals such as gold or platinum to produce chlorides.