00:01
Okay, so i'm looking for the leaders of hydrogen gas formed, and we're starting with 15 .7 grams of carbon.
00:11
You want to divide this by its molar mass, which is 12 .01, to convert it to moles, and then we're going to use the coefficients and the balanced chemical equation.
00:19
So we have one in front of the carbon, and then we have one in front of the hydrogen gas.
00:25
So this is going to give us our moles of hydrogen gas.
00:28
So we're going to take 15 .7 divided by 12 .01, which is going to be 1 .3.
00:37
I'm going to round this off to three sig figs, 1 .31 moles of h2.
00:41
Now, this is the n in pv equals nrt.
00:46
So if you rearrange pv equals nrt to solve for v, it's going to be nrt over p.
00:54
So this is 1 .31 moles times 0 .0 .0 .1.
01:00
821, liters times atmospheres over mole times kelvin...