Question

Find the mass and number of ammonia nh3 molecules in 5.6 litre

Answer 1

Answer:

Explanation:

Given 5.6 litre of ammonia.

no. of moles=Volume(in litre)/22.4

no. of moles of nh3=5.6/22.4

0.25

Again no. of moles=weight /molar

mass

Weight=no. of moles*molar mass

=0.25*17

= 4.25g

Now, no. of molecules=moles*avogadro's number

=0.25*6.023*10^23

=1.50575*10^23