Ammonia

# What is the mass of a single ammonia molecule?

###### 10/03/2007

It is not typical to refer to the weight of literally a single molecule (one nitrogen and four hydrogens) but to a "mol" or 6.022 x 10^23 molecules.

But, if that is actually what you mean, the mass of a single molecule of NH4 can be determined like this.

[(molar mass N x 1) + (molar mass H x 4)] / (6.022 x 10^23)

that will give you the answer in grams.

[(14.01)+(1.01 x 4)]/(6.022 x 10^23) = (18.05)/(6.022 x 10^23) grams

i don't have a calculator, plug it in and you've got it!

It is not typical to refer to the weight of literally a single molecule (one nitrogen and four hydrogens) but to a "mol" or 6.022 x 10^23 molecules.

But, if that is actually what you mean, the mass of a single molecule of NH4 can be determined like this.

[(molar mass N x 1) + (molar mass H x 4)] / (6.022 x 10^23)

that will give you the answer in grams.

[(14.01)+(1.01 x 4)]/(6.022 x 10^23) = (18.05)/(6.022 x 10^23) grams

i don't have a calculator, plug it in and you've got it!