Consider the reaction below. 2h2o 2h2 + o2 how many moles of hydrogen are produced when 6.28 mol of oxygen form?
a. 3.14 mol
b. 6.28 mol
c. 12.6 mol
d. 25.2 mol
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Ответ:
2 H2O > 2 H2 + O2
2) State the molar ratios:
2 mol H2O : 2 mol H2 : 1 mol O2.
3) Write the proportion with the theoretical ratios and the actual data:
[2 mol H2 / 1 mol O2 ] = x mol H2 / 6.28 mol O2]
You can realize that this tells that the number of moles of H2 produced is the double of the number of moles of O2 produced.
4) Solve for x
x = 6.28 mol O2 * 2 mol H2 / 1 mol O2 = 12.56 mol O2.
option C. 12.6 mol
Ответ: