Chemistry
How will you prepare the following from nitric acid?
(a) Sodium nitrate
(b) Copper nitrate
(c) Lead nitrate
(d) Magnesium nitrate
(e) Ferric nitrate
(f) Aqua regia
Answer
(a) NaOH + HNO3 [dil.] ⟶ NaNO3 + H2O
(b) CuO + 2HNO3 [dil.] ⟶ Cu(NO3)2 + H2O
(c) Pb + 4HNO3 [conc.] ⟶ Pb(NO3)2 + 2H2O + 2NO2
(d) Mg(OH)2 + 2HNO3 [dil.] ⟶ Mg(NO3)2 + 2H2O
(e) Fe + 6HNO3 [conc.] ⟶ Fe(NO3)3 + 3H2O + 3NO2
(f) Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid mixed in the ratio of 3:1 by volume.
3HCl + HNO3 ⟶ NOCl + 2H2O + 2[Cl]
Related Questions
Give two chemical equations for each of the following:
(a) Reactions of nitric acid with non-metals.
(b) Nitric acid showing as acidic character.
(c) Nitric acid acting as oxidising agent.
Write balanced equations and name the products formed when:
(a) Sodium hydrogen carbonate is added to nitric acid.
(b) Cupric oxide reacts with nitric acid
(c) Zinc reacts with dilute nitric acid
(d) Concentrated nitric acid is heated
Write equation for the following conversions A, B, C and D.
Correct the following, if required:
(a) HNO3 is a strong reducing agent.
(b) NaNO3 gives NO2 and O2 on heating.
(c) Constant boiling nitric acid contains 80% nitric acid by weight.
(d) Nitric acid remains colourless even when exposed to light.
(e) Magnesium reacts with nitric acid to liberate hydrogen gas.