chem helo plss

Question

starting with n=g/MM and PV=nRT, detrive the formula for molar mass

Answer 1

Xfgh. Nice name. LOL

 

OK. So we have n=g/MM - and I assume MM = molar mass.

 

We can rearrange that. MM = g/n.

 

But we also have the Ideal Gas Law here: PV = nRT.

 

From this, n = PVRT.

 

Substituting into our latest expression for molar mass, we get

 

MM = g/(PVRT).

 

That's as simple as I can get it with the info I have here. If you substitute numbers for the variables here, make sure to check for unit-correctness.

 

Cheers!