The determination of chloride by mercuric nitrate follows the principle of titration. Mercuric nitrate reacts with chloride ions to form a white precipitate of mercuric chloride. The endpoint of the titration is reached when all chloride ions have reacted with mercuric nitrate, indicated by a color change in the solution.
HgNO3: mercurous nitrate is the earlier name for mercury (I) nitrate.
Essentially ALL the metallic nitrates are soluble, even mercurous nitrate, perhaps the only mercurous salt that is soluble.
Mercury could be reacted with Nitric acid to form Mercurous nitrate. Since hydrogen is less reactive than mercury, therefore mercury would not replace hydrogen from nitric acid but the nitrate ion could oxidize mercury ion and form mercurous chloride .
Mercury is not attacked by dilute hydrochloric or sulfuric acid. It reacts with hot nitric acid to form mercuric nitrate, Hg(No 3 )
The formula for mercurous peroxide is Hg2O2.
Hg22+ + NO3- -----> Hg2(NO3)2
The compound name for mercury nitrate is mercurous nitrate or mercury(I) nitrate, with the chemical formula HgNO3.
When mixed together, mercurous nitrate and sodium chloride undergo a double displacement reaction to form mercurous chloride and sodium nitrate. The balanced chemical equation for this reaction is 2Hg2(NO3)2 + 2NaCl → 2Hg2Cl2 + 2NaNO3.
According to the newspaper account given by the link it was first prepared by Acharya P. C. Ray.
Mercurous has a charge of +2, and Oxide has a charge of -2. You cross the chargesand get Hg2O2. The 2s cancel out, leaving you : HgOnuh uh, mercurOUS has a charge of +1, so it's Hg2OmercurIC has a charge of +2, that would be HgO
One useful nugget is that essentially ALL nitrates are soluble - even mercurous nitrate, though essentially all mercurous salts are insoluble.