answersLogoWhite

0


Best Answer

Since we know that one mole of any gas at STP is equal to 22.4 L we can multiply 135L by the following conversion: 1 mole/22.4L. When you set up the problem it looks like this:

(135L)x 1 mole/22.4L =6.03 moles of oxygen gas

The liters cancel out and you are left with moles as your units. Remember, if you have liters and want moles, divide by 22.4 liters; if you have moles and you want liters you multiply by 22.4 liters.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar
More answers
User Avatar

Rojan Khati

Lvl 2
1y ago

1mole of 02= 32gm of O2

(and at NTP/STP every gases having molar mass have equal volume(V)

i.e V=22.4Litres )

since O2 is a gas. So, its volume will 22.4L

i.e 32gm of O2 =22.4L

so, 1L = 32/22.4 gm of O2

so, finally

135 L = 32/22.4 * 135 gm,

which is the required answer....

This answer is:
User Avatar

User Avatar

Regina Rubio

Lvl 2
1y ago

6.02

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How many moles of oxygen gas there in 135 L of oxygen at STP?
Write your answer...
Submit
Still have questions?
magnify glass
imp