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Chapter 3: Problem 87

Tin, Sn, and oxygen can combine to form two different compounds called oxides. Oxide A contains \(78.77 \%\) by mass tin. Oxide B contains \(88.12 \%\) by mass tin. What is the percent by mass of oxygen in each oxide?

Short Answer

Expert verified
The percent by mass of oxygen in oxide A is \(21.23\%\) and in oxide B is \(11.88\%\).

Step by step solution

01

Percent by mass of tin in oxide A

Given percentage of tin in oxide A: \(78.77\% \)
02

Percent by mass of oxygen in oxide A

The sum of the percent by mass of tin and oxygen equals \(100\% \). To find the percentage of oxygen in oxide A, subtract the given percentage of tin from 100%. Oxygen % in Oxide A = \(100\% - 78.77\% = 21.23\% \)
03

Percent by mass of tin in oxide B

Given percentage of tin in oxide B: \(88.12\% \)
04

Percent by mass of oxygen in oxide B

As before, to find the percentage of oxygen in oxide B, subtract the given percentage of tin from 100%. Oxygen % in Oxide B = \(100\% - 88.12\% = 11.88\% \)
05

Results

The percent by mass of oxygen in oxide A is: \(21.23\% \) The percent by mass of oxygen in oxide B is: \(11.88\% \)

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