Question

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

Answer 1

Answer:

18.144

Explanation:

As we know the mass of a single hydrogen atom is 1.008

So, to calculate the mass of 18 hydrogen atoms, we need to multiply 1.008 to 18

Solution

Mass of one hydrogen atom = 1.008

Mass of 18 hydrogen atoms = 18x 1.008

                               Answer   = 18.144

Answer 2

Given:

The mass of an atom of hydrogen, m = 1.008 u

No of Hydrogen atoms, n = 18

To Find:

The mass of 18 atoms of hydrogen.

Calculation:

- The mass of 18 atoms of hydrogen can be calculated as follows:

Mass of 18 atoms of Hydrogen = Mass of 1 atom × 18

⇒ M = m × 18

⇒ M = 1.008 × 18

⇒ M = 18.144 u

- So, the mass of 18 atoms of hydrogen is 18.144 u.