How many grams are there in 0.0200 mol of nicotine, a yellow liquid? {use formula weight; nicotine, 162.2 amu}

Question

How many grams are there in 0.0200 mol of nicotine, a yellow liquid? {use formula weight; nicotine, 162.2 amu}

Answer 1

1 mol of any molecule is has a mass equal to its atomic mass (which is given in amu) in grams.

So if the atomic mass of nicotine is 162.2 amu, then 1 mol will have a mass of 162.2 g

So you can always calculate the number of moles in a substance by the equation

moles = mass / molecular weight.

Therefore mass = moles x molecular weight

= 0.0200 mol x 162.2 g/mol

= 3.24 g