Question

how do I set up calculate the # of moles of 0.850g of H atoms. What is the mass in g of 0.850 mol of H atoms ?

Answer 1

This is more chemistry related, but luckily I study chemistry :)

Your equation for numbers of moles is:

\[n=m/M\]

where

n = number of moles
m = mass
M = molar mass

First you need to find out the molar mass. If you look H up in your periodic table, it has a molar mass of 1.0079.

All you need to do is divide the mass by this number, and you have your moles.

Answer 2

looking at it now

Answer 3

so I divide0.850 by 1.0079 ?

Answer 4

Yep. You should get 0.843 mol.

Answer 5

Thank you for the help.

Answer 6

No worries. Glad to help you understand it.

Answer 7

I am going to post another would you be able to look at it ?

Answer 8

Of course.