Question

A compound contains equal numbers of nickel atoms and oxygen atoms. A sample of this compound contains 8.15 g of nickel and 2.22 g of oxygen. Calculate the atomic mass of nickel from this information.​

Answer 1

Answer:

The atomic mass of nickel from this information is $58.7 u$ .

Explanation:

From the question, we can write that the number of nickel atoms is equal to the number of oxygen atoms.

That is, number of nickel atoms = number of oxygen atoms

            $\frac{mass of Ni}{atomic mass of Ni} = \frac{mass of O}{atomic mass of O}$

We know that the atomic mass of oxygen is $16 u.$

    $\frac{8.15}{atomic mass of Ni} = \frac{2.22}{16}$

The atomic mass of nickel = $\frac{8.15*16}{2.22}$ $= 58.7 u$