Question

When a 16.50 g sample containing nickel and oxygen is analyzed, 5.87 g of nickel are found. What is the percent composition of this mineral?

Answer 1

Answer:

$\%O=64.2\%\\\\\%Ni=35.8\%$

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to tell that since the total mass is 16.50 g and 5.87 g correspond to nickel, then the mass of oxygen is:

$m_O=16.50g-5.87g=10.63g$

And therefore, the resulting percent composition turns out to be:

$\%O=\frac{10.60}{16.50} *100\%=64.2\%\\\\\%Ni=\frac{5.87}{16.50} *100\%=35.8\%$

Regards!