This question is about some reactions of chlorine and hydrogen chloride. (a) When hydrogen gas and chlorine gas are mixed and passed over a hot platinum catalyst, hydrogen chloride gas is formed. The equation for this reaction is H,(g) + CL,(g) → 2HCl(g) In an experiment, 20 cm3 of dry hydrogen gas was reacted with 20 cm³ of dry chlorine gas. All gas volumes were measured at room temperature and pressure (r.t.p.). Calculate the number of gas molecules in the product at r.t.p. [Molar volume of a gas at r.t.p. = 24 000 cm3mol-1 Avogadro constant (L) = 6.02 × 10³ mol ¹]
