mixture of O2 (g) and H2 (g) explosively react to form steam H2O (g) in the presence of an electric spark. 4.15 mol of H2 (g) and 7.13 mol of O2 (g) are mixed and allowed to react in the presence of a electric spark. The yield of the reaction is 100%. (a) Write a balanced equation for the reaction. (b) What is the limiting reactant? (answer: 4.15 mol H2 can produce 4.15 mol H2O and 7.13 mol O2 can produce 14.3 mol of H2O, so, H2 is the limiting reactant.) (c) What is the theoretical yield of H2O in moles? (answer: 4.15 mol)
A mixture of O2 (g) and H2 (g) explosively react to form steam H2O (g) in the presence of an electric spark. 4.15 mol of H2 (g) and 7.13 mol of O2 (g) are mixed and allowed to react in the presence of a electric spark. The yield of the reaction is 100%.
(a) Write a balanced equation for the reaction.
(b) What is the limiting reactant? (answer: 4.15 mol H2 can produce 4.15 mol H2O and 7.13 mol O2 can produce 14.3 mol of H2O, so, H2 is the limiting reactant.)
(c) What is the theoretical yield of H2O in moles? (answer: 4.15 mol)
(d) How many moles of O2 are left after the reaction? (answer: 5.05 mol)
(e) How many moles of H2 and O2 would be left if the reaction yield is only 74.5%?
(answer: H2: 1.06 mol left; O2: 5.59 mol)
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