### units in av focus topics

Posted:

**Tue Jan 08, 2019 8:09 pm**When calculation concentration in mol.m^-3, and you are given R in m^3 how would you do the conversions?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=123&t=39458

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Posted: **Tue Jan 08, 2019 8:09 pm**

When calculation concentration in mol.m^-3, and you are given R in m^3 how would you do the conversions?

Posted: **Tue Jan 08, 2019 9:04 pm**

When calculating concentration in units of mol/m^3 and you are given a pressure in atm, a temperature in Kelvin, and an R value with units of m^3*atm/K*mol, you do not need to do any conversions because the units atm and K should cancel leaving you with a concentration in mol/m^3. Just plug in the R value, pressure, and temperature to solve for the concentration in mol/m^3. Hope this helps!