Question
What information is available from the following equation:
CaCO3 + 2HCl→ CaCl2 + H2O+ CO2
Solution
The following information can be derived from the given equation:
(i) Calcium carbonate and hydrochloric acid are reactants and calcium chloride, water
and carbon dioxide are products.
(ii) 1 molecule of calcium carbonate reacts with 2 molecules of hydrochloric acid to produce 1 molecule each of calcium chloride, water and carbon dioxide.
(iii) 1 g molecule, i.e., 100 g CaCO3 reacts with 2 g molecules, i.e., 73 g HCl and produces 111 g CaCl2, 18 g H2O and 44 g CO2.
(iv) 22.4 litres of CO2 is formed at S.T.P.
(v) It obey law of conservation of mass.
