Calculate the number of moles of hydrogen present in 500 cm^(3) of a gas under a pressure of 101.3kPA at a temperature of 300K. (R=8.314 J K^(-1) mol^(-1)).

Calculate the number of moles of hydrogen present in 500 cm^(3) of a g

1.	Calculate the number of moles of hydrogen present in 500 cm^(3) of a gas under a pressure of 101.3kPA at a temperature of 300K. (R=8.314 J K^(-1) mol^(-1)).
Answer» Solution :`n=?, V=500 cm^(3) =500x10^(-3) dm^(3)=05 dm^(3)` `T=300K` `PV= NRT or n=(PV)/(RT)=(1013xx05)/(8314xx300)=0203 "MOL"` `:. n=00203` mol