Question

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

Answer 1

6.28 mol O2* (2 mol H2/ 1 mol O2)= 12.6 mol H2

The correct answer is C. 12.6 mol~

Answer 2

2 H2O ------------> 2 H2 + 1 O2

2 mol H2 ----> 1 mol O2
x mol H2 -----> 6.28 mol O2

x = 6.28 * 2

x ≈ 12.6 mol

answer C

hope this helps!.