00:01
Hello, in this question we have been asked what is the first step when finding the mass of product from mass of a reactant? okay, so suppose we have been given a reaction and we have to find the mass of the product from mass of reactant.
00:14
Okay, so we would have seen that the first step you always do is first convert the mass of reactant to mass, to moles of reactant using the molar mass.
00:23
Right? that's the first step you always do.
00:25
So we convert mass of reactant to moles of reactant using the molar mass.
00:50
Okay, so this is the first step you always follow.
00:58
Okay, so this is option 5.
01:02
So this is the correct answer.
01:05
Now next part is we have been given an equation, right? so this is a, then we go to b.
01:18
We have been given that there is a reaction hcl, aquis, plus n -a -o -h, acquies gives nacl plus h2.
01:43
Okay, now we have to find what is the mass of hl needed to react completely with 0 .325 grams of naoh.
01:54
So we have been given mass of naoh is 0 .325 grams...