Respuesta :

Answer:

[tex]\%O=64.2\%\\\\\%Ni=35.8\%[/tex]

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:

[tex]m_O=16.50g-5.87g=10.63g[/tex]

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

[tex]\%O=\frac{10.60}{16.50} *100\%=64.2\%\\\\\%Ni=\frac{5.87}{16.50} *100\%=35.8\%[/tex]

Regards!

Percentage composition is the percentage of the mass of the individual element. The percentage composition of oxygen is 64.2% and of nickel is 35.8%.

What is mass?

Mass is the amount of weight occupied by the sample or an element in a compound or molecule.

Given,

The total mass of the compound = 16.50 gm

Mass of nickel = 5.87 gm

The mass of oxygen is calculated as: 16.50 - 5.87 = 10.63 gm.

The percentage composition of oxygen is calculated as:

[tex]\dfrac{10.60}{16.50} \times 100\% = 64.2\%[/tex]

The percentage composition of nickel is calculated as:

[tex]\dfrac{5.87}{16.50} \times 100\% = 35.8\%[/tex]

Therefore, the percentage of oxygen is 64.25% and of nickel is 35.8%.

Learn more about mass percentage here:

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