Problem 3.100 a chemical plant uses electrical energy to decompose aqueous solutions of nacl to give cl2, h2, and naoh: 2nacl (aq) + 2h2o (l) →2naoh (aq) + h2 (g) + cl2 (g) part a if the plant produces 1.5*106 kg (1500 metric tons) of cl2 daily, estimate the quantities of h2 produced.

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Chemistry

Jameson

14 May, 05:26

Problem 3.100 a chemical plant uses electrical energy to decompose aqueous solutions of nacl to give cl2, h2, and naoh: 2nacl (aq) + 2h2o (l) →2naoh (aq) + h2 (g) + cl2 (g) part a if the plant produces 1.5*106 kg (1500 metric tons) of cl2 daily, estimate the quantities of h2 produced.

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Karly Larson · Answer 1

First we calculate the number of moles of Cl2, that is:

moles Cl2 = 1.5*10^10 grams/71 grams/mol = 211267605.633802817 mol = 2.1 * 10 ^ 8 mole = x

So that based on stoichiometry, the number of moles of NaOH = 2x and that of H2 = x mol

mass of NaOH = 4.2*10^8 * 40 = 168*10^8 grams = 1.68 * 10^6 kg = 1.68 metric tons

mass of H2 = 2.1*10^8 * 2 = 4.2*10^8 grams = 0.042 * 10^6 kg = 0.042 metric tons.