00:01
In this question, we are told to calculate the density of hydrogen gas.
00:08
So we are given the temperature to be 20 degrees celsius, and we are given the pressure to be 1655 psi.
00:24
So how do we go about calculating the density? that's what we are looking for.
00:32
So we know one atmosphere is equals to 14 .7 psi.
00:40
Therefore, 1655 psi will be equivalent to 1655 divided by 14 .7.
00:50
And if we do that, that would give us, that will give us 11 .6 .6 atmosphere.
01:09
So now that we know the pressure in atmosphere, we know pv is equals to nrt and n, n, which is a number of mole, is then equal to pv over rt.
01:27
Okay? and like we know, number of mole is equal to mass divided by molar mass...