Anyone have a guide to moles etc? (1 Viewer)

[nekobutterfly]

Hi,
i am doing chem and i seem to do alright learning info but i can't do any of the equations well or formulas like mcat...anyone have anything which could help?
Thanks!

 

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n = c V
m = n M

n is the number of moles (mol)
c is the concentration of the solution (mol L^-1 or mol / L)
V is the volume of a solution (L)

m is the mass of a substance in grams (g)
M is the molecular weight of a compound/substance (g mol^-1 or g / mol)

To calculate the volume a gas of a certain molecular weight occupies at a certain temperature and pressure e.g. 1 mole of any gas occupies 24.79L at 25⁰C & 100kPa.

V = MV_M

Post up a question whenever you want.

 

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Enjoy

 

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Enjoy