Question

formation of water: 2H2 + 1 O2 --> 2H2O
How many moles of H2O can be produced from 35 grams of O2?

Answer 1

Answer:

2.2 moles H2O

Explanation:

$35g O_2 \mbox{ \cdot }\frac{1mol}{32g/mol} \mbox{ \cdot }\frac{2mol H_2O}{1mol O_2}= 2.1875$, which rounds to about 2.2