Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to r

Question

3 years ago

15

Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to r

eact completely with 7.25 liters of hydrogen gas? show all of the work used to solve this problem. balanced equation: 2h2 (g) + o2 (g) yields 2h2 o(g)

Chemistry

1 answer:

tatiyna · Answer 1 · 2022-01-29T01:02:10+03:00

You don't have to worry about converting to moles and back to liters. You need to know about Gay-Lussac's law of combining volumes. Coupled with Avogadro's law which says that the moles of gas are proportional to the volume, all we have to do is:

2H2(g) + O2(g) -> 2H2O(g)
2L ..........1L ..........2L
7.25L .....3.63L .....7.25L

The only work is dividing 7.25 by 2.