00:01
So to solve for this, let us write first the equation for our reaction.
00:09
So we have zinc and we have hcl and this will produce zinc, zl2 and hydrogen gas h2.
00:21
So to balance this, we only need to write here two.
00:26
Okay, so this is now our balanced equation.
00:28
And then solving for number of moles of h2 first.
00:34
So we have 30 .0 grams of zinc.
00:40
Okay, and how do we convert this to most? we need the atomic mass of zinc, and it's 65 .38 grams, 2 per mole of zinc.
00:50
And as you can see in our balance equation, for every one mole of zinc, it will produce one mole of hydrogen gas also.
00:59
Okay, so that means we have 0 .4589 roll of h2.
01:10
And now solving for the volume, since we have the number of moles now, so we're going to use the ideal gas equation bvnrt...