Question

a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid (D=2.4g/ml). does he have enough? ammonia has an atomic weight of 17 grams

Answer 1

If the chemist needs 46 moles and he has 46 grams, that isn't enough.

Answer 2

im trying to do the dimensional analysis for it but i keep getting up to a point and stopping.

i get as far as....

46g x 1mole/17g x ___/ mole

... im not really sure what to do after that.

Answer 3

46 grams x (1 mole NH3/17 g NH3) = 2.70 moles. 2.70 moles is < 46 moles.