Question

The mass of an atom of hydrogen is 1.008 u what is the mass of 18 atoms of hydrogen

Answer 1

Answer:

Explanation:

Mass of 18 hydrogen atoms= (1.008 multiplied by 18) units

= 18.144 units

Answer 2

Answer:

18.144 u

Explanation:

As given in the question,

The mass of an atom of hydrogen = 1.008 u

We are asked to calculate the mass of 18 atoms of the hydrogen.

Since,

The mass of an atom of hydrogen = 1.008 u

hence,

The mass of 18 atoms of hydrogen = 18 x 1.008 u

                                                           = 18.144 u

So, the mass of 18 hydrogen atoms will be 18.144 u.