Question

what is the number of molecules in 1.5 moles of ammonia

Answer 1

1.5 moles of ammonia contains 9.033 x 1023 molecules

Answer 2

To calculate the molecules present in a specific molar amount of any substance we use the formula mentioned below:

Molecule number= Number of moles×Avogadro Number

=1.5×6.023×10²³

=9.0345×10²³

[Avogadro number is a constant here]

So,there are (9.0345×10²³) molecules in 1.5 moles of ammonia.(In STP)