Question

What is the percent composition of CuO if a sample of CuO with a mass of 62.5 g contains 12.5 g of oxygen (O) and 50 g of Cu?

PLEASE SHOW WORK

Answer 1

The percent composition of CuO is 80%(Cu) and 20%(O)

Step-by-step explanation:

Given:

Percent (%) Composition of CuO

Cu = 1 x 50g - Multiply by one as there is one Cu

O = 1 x 12.5g - Multiply by one as there is one O

CuO = 62.5g

% for Cu = 50g over 62.5 multiplied by 100 = 80%

% for O = 12.5g over 62.5 multiplied by 100 = 20%

Final Answer :

Percent (%) Composition of CuO = 80% (Cu) & 20% (O)