Question

How many hydrogen molecules are in 1.2 moles of hydrogen?

Answer 1

7.22 x 10²³molecules

Step-by-step explanation:

Given parameters:

Number of moles of hydrogen = 1.2moles

Unknown:

Number of molecules of hydrogen = ?

Solution:

From the concept of moles, a mole of a substance contains the Avogadro's number of particles.

1 mole of a substance = 6.02 x 10²³ molecules;

So; 1.2 moles of hydrogen = 1.2 x 6.02 x 10²³ molecules;

= 7.22 x 10²³molecules