when a 16.50 - g sample containing nickel and oxygen is analyzed, 5.87 g of nickel are found. what is the…

Explanation:

Step1: Calculate the mass of oxygen

The mass of the sample is (m_{sample}=16.50\space g), and the mass of nickel is (m_{Ni} = 5.87\space g). Using the formula (m_{O}=m_{sample}-m_{Ni}), we have (m_{O}=16.50 - 5.87=10.63\space g).

Step2: Calculate the percentage of nickel

The formula for percentage composition is (%\text{ component}=\frac{\text{mass of component}}{\text{mass of sample}}\times100%). For nickel, (%\text{Ni}=\frac{5.87}{16.50}\times 100%=\frac{587}{16.50}% \approx 35.6%)

Step3: Calculate the percentage of oxygen

For oxygen, (%\text{O}=\frac{10.63}{16.50}\times 100%=\frac{1063}{16.50}% \approx 64.4%)

Answer:

(35.6%) nickel, (64.4%) oxygen