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taja
Questions and answers by visitors named
taja
Questions (2)
A 18.2 g sample of an unknown compound contains 0.7 g of oxygen. What is the percent by mass of oxygen in the compound?
2 answers
1,056 views
A 71.1 g sample of an unknown compound contains 10.1 g of hydrogen. What is the percent by mass of hydrogen in the compound?
When
1 answer
450 views
