Possibly the conversion of kPa? Which gas constant did you use?
As an estimate
1.24 x 10^ 4 kPa is approximately 124 atmospheres.
If 1 mole of a gas occupies 22.4 L at STP
Then the number of moles is very approximately
124 x 25/22.4 moles = 138 moles
PS - remember to include the leading zero when writing a decimal as the dot is very easy to miss.
1. A sample of argon gas is at a pressure of 1.24 x 10^4 kPa and a temperature of 24°C in a rigid 25-L tank. How many moles of argon does this tank contain?
I ended up with .130 but its 130
Can someone tell me what I did wrong?
This whole chapter on gases is really confusing to me and it would help if someone explained it
1 answer