Question

Partial pressure of CH4 gas in
the mixture of CH4 & He gases
in a flask is 0.5 atm. If that
mixture is at STP, the weight of
helium gas in the mixture is
1) 2g 2) 5g 3) 0.5g 4) 4g​

Answer 1

BY SEEING THE QUESTION I CAN SAY THAT THE ANSWER IS 0.5 G