Chemistry
The reaction between red lead and hydrochloric acid is given below:
Pb3O4 + 8HCl ⟶ 3PbCl2 + 4H2O + Cl2
Calculate
(a) the mass of lead chloride formed by the action of 6.85 g of red lead,
(b) the mass of the chlorine and
(c) the volume of chlorine evolved at S.T.P.
Related Questions
The reaction between 15 g of marble and nitric acid is given by the following equation:
CaCO3 + 2HNO3 ⟶ Ca(NO3)2+ H2O + CO2
Calculate:
(a) the mass of anhydrous calcium nitrate formed
(b) the volume of carbon dioxide evolved at S.T.P.
66g of ammonium sulphate is produced by the action of ammonia on sulphuric acid.
Write a balanced equation and calculate:
(a) Mass of ammonia required.
(b) The volume of the gas used at S.T.P.
(c) The mass of acid required.
Find the mass of KNO3 required to produce 126 kg of nitric acid. Find whether a larger or smaller mass of NaNO3 is required for the same purpose.
KNO3 + H2SO4 ⟶ KHSO4 + HNO3
NaNO3 + H2SO4 ⟶ NaHSO4 + HNO3
Pure calcium carbonate and dilute hydrochloric acid are reacted and 2 litres of carbon dioxide was collected at 27°C and normal pressure.
CaCO3 + 2HCl ⟶ CaCl2 + H2O + CO2
Calculate:
(a) The mass of salt required.
(b) The mass of the acid required