• Support PF! Buy your school textbooks, materials and every day products Here!

Unit for Molar Mass(M)?

  • Thread starter SAT2400
  • Start date
  • #1
69
0
Unit for Molar Mass(M)??

Homework Statement


What's the unit for Molar mass? Is it different in CHemistry and Physics?

Homework Equations


PV=nRT

The Attempt at a Solution


In Chemistry class(last year) I think I used (g/mol).
But in Physics, my teacher says it's (kg/mol).
What is right??
THanks
 

Answers and Replies

  • #2
50
0


Homework Statement


What's the unit for Molar mass? Is it different in CHemistry and Physics?

Homework Equations


PV=nRT

The Attempt at a Solution


In Chemistry class(last year) I think I used (g/mol).
But in Physics, my teacher says it's (kg/mol).
What is right??
THanks
In Physics, the SI unit for mass is the Kg. In chemistry, it usually is grams but it also depends on the type of questions you do and what S! unit the question asks for.
 
  • #3
ideasrule
Homework Helper
2,266
0


g/mol, kg/mol, slugs per mol, and (whatever other mass unit) per mol are all fine for both physics and chemistry. However, it may be more convenient to use a certain unit for certain calculations.
 
  • #4
Borek
Mentor
28,396
2,799


It is like asking which is a 'correct' pressure unit - PSI, atm or Pascal.
 
  • #5
423
2


In your assignments and tests, use whichever you feel more comfortable with. Then just convert the answer to the units your teacher wants. There is no "correct" unit here, just your teacher's personal preference.

If you are careful to always make sure your units check out and cancel properly, there should be no problem.
 

Related Threads on Unit for Molar Mass(M)?

  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
1
Views
9K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
4
Views
8K
Replies
13
Views
6K
  • Last Post
Replies
3
Views
6K
Replies
2
Views
6K
  • Last Post
Replies
4
Views
410
  • Last Post
Replies
7
Views
19K
Top