WAEC Past Questions and Answers - Page 1809

The ratio of reactants to products is 1: 3: 2 in the reaction represented by the equation below: N_{2,/SUB> (g) → 2NH3(g) which of the following law is demonstrated by this?}

Esterification of propane 1,2,3-triol and unsaturated higher carboxylic acids will produce

2NaNO3 → 2NaNO2 + O2. From the equation above, what is the volume of oxygen produced at s.t.p. when 8.5g of 2NaNO3 is heated until no further gas is evolved? (2NaNO3 = 85, molar volume of gases at s.t.p. = 22.4dm3)

Consider the reaction represented by the equation below: H_2(g) + 1_2(s) ⇌ 2HI_(g) ∆H negative. Which of the following takes place when the temperature of the reaction vessel is decreased?

CH_4(g) + 2O_{2(g) → 2H2O(l) + CO2(g) ∆H = 890KJ mo-1 ∆H in the reaction represented by the equation above is the enthalpy of}