# How many moles of hydrogen are in a #3.2*mol# quantity of #"ammonium hydroxide"#?

##### 2 Answers

#### Explanation:

Well,

And so we take the product................

Note that ammonium hydroxide is likely better represented as

#### Explanation:

We're asked to calculate the number of atoms of

We can do this two different ways. The first is to calculate the number of molecules of

Method 1:

Using *Avogadro's number* (*molecules* of

Now, using the fact that there are

rounded to

Method 2:

For the second method, we can calculate the number of moles of

rounded to

As you can see, both methods yield the same result, so either one can be used (I would probably prefer the second method; I find it to be a little more exact).