Name the metallic nitrate that is not used for the preparation of nitric acid in the lab
Answers
Answer:
Sodium Nitrate
Explanation:
Nitric acid is the basic component for the purpose of Nitration. To produce metal nitrates, nitric acid is used. On the other end, to produce nitric acid a metal nitrate is also used.
When sodium nitrate reacts with concentrated sulphuric acids, this results in the production of sodium hydrogen sulphate and nitric acid.
sodium nitrate + Sulphuric Acids === sodium hydrogen sulphate + nitric acid
NaNO3 (s) + H2SO4 (conc) == NaHSO4 (aq) + HNO3 (l)
The metallic nitrate used for preparation of nitric acid in lab is sodium nitrate or potassium nitrate.
In lab nitric acid is prepared by heating potassium nitrate(KNO3) or sodium nitrate(NaNO3) and concentrated sulphuric acid (H2SO4) in a glass retort. Reaction is :--
NaNO3(s) + H2SO4(conc)-------> NaHSO4(aq) + HNO3(l)
Nitric acid is the most common and important oxoacid of nitrogen.
Laboratory grade nitric acid contains 68 % of HNO3 by mass and has specific gravity of 1.504.
In gaseous state nitric acid is planar molecule and on aqueous medium nitric acid behaves as a stong acid giving hydronium and nitrate ions.
So in lab nitric acid prepare by metal nitrate of sodium or potassium.