Molarity unit [ENDORSED]

[Daniel Rivas 3L]

So I was working on a lot of molarity questions recently and I was wondering. does Molarity always have the unit of mol/L? Or can it sometimes equal mol/ml if you keep it the same? or is it a different unit altogether? I'm just a little confused about it.

[Nishma Chakraborty 1J]

Hey! From by best understanding (and from what my teachers have done in the past), molarity has always been in the standard mol/L. Whenever a volume is given in ml, I convert it to L. Hope that helps!

[Kevin Liu 3G]

Yes, it is best to never do mol/ml because the formula always uses mol/L and it is the more accepted version. Besides, you wouldn't want the grade to mistakenly think that you wrote 13 L instead of 13 ml.

[Ruohan Sun 3I]

The mostly used unit M is mol/L, but you can also use other units such as mol/mL

[SitharaMenon2B]

Molarity as an SI unit is usually defined by moles per liter so I would say you probably should not use moles per mL

[StephanieRusnak]

I would say always use mol/L for molarity, even if in certain calculations the L will cancel, I think its best to show your understanding of the definition of molarity.

[804899546]

What is the difference between molarity and molality?

[Jesus Rodriguez 1J]

The standard units for molarity are mol/L so I would suggest using those units. If a problem for some reason asks you for Molarity in terms of mol/ml you can always convert the Liters.

[Gobinder Pandher 3J]

Molarity is defined as the moles of solute per liter of solution. I don't think you'll ever see molarity as moles/mL. I hope this helps.

[Samira Tootla 1J]

Molarity is the number of moles of solutes per liter of solution, whereas molality is the number of moles of solute per kilogram of solvent. Molarity's SI unit is mol/liter and molality's SI unit is mol/kg. Hope that answered the questions above.

[Samira Tootla 1J]

Molarity is the number of moles of solutes per liter of solution, whereas molality is the number of moles of solute per kilogram of solvent. Molarity's SI unit is mol/liter and molality's SI unit is mol/kg. Hope that answered the questions above.

[Amelia Georgius 1K]

It is usually easiest to convert all of your units to SI units at the beginning of a problem so that you are less likely to make an error in the calculation and answer, which in this case the SI unit is mol/L.