A 133.8-gram sample of bronze was 10.3% tin by mass. Determine the total mass of tin in the sample.
1 answer:
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Answer:
Approximately .
Explanation:
Make use of the molar mass data () to calculate the number of moles of molecules in that
of
:
.
Make sure that the equation for this reaction is balanced.
Coefficient of in this equation:
.
Coefficient of in this equation:
.
In other words, for every two moles of that this reaction consumes, two moles of
would be produced.
Equivalently, for every mole of that this reaction consumes, one mole of
would be produced.
Hence the ratio: .
Apply this ratio to find the number of moles of that this reaction would have produced:
.