How to Calculate Grams from Moles (Moles to Mass)

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How do you calculate the mass of a substance, given the number of moles?

m = Mn
where m = mass in grams
n = number of moles
M = molar mass (see http://www.youtube.com/watch?v=F9NkYSKJifs)

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Education

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• chemistNATEchem

[AyOitzthao]

How to do you calculate the mass of grams?

[chemistNATE]

@AyOitzthao The mass will probably be given to you. It may be in units other than grams (for example, kilograms or pounds).

OR, if the question is more complicated, they may ask you to calculate the mass from density and volume, if both of those are given....I will try to make a video about that soon, thanks for the idea!

[nazirAFG10]

thank you chemistNATE :)



[hyperlegs499]

i thank you :D

[hyperlegs499]

@chemistNATE when its with density/volume dont u divide tht number by 1000?

[twinkililie]

When do we use 6.02x10^23?

[prettylittleliargurl]

My teacher makes us do it her way or we get points off ): but this video helped a lot , i'll use it to check my work ! thanks sooo much.

[mdarren135]

thanks so much

[M3Monica]

Please do more! You know how to simplify things so well. Thank you so much for the help.

[gittygittygoo1012]

khan explains it a little better

[Dyograph]

@NeonNeutron Avogadro's number that is