Explain what is the percent by mass of oxygen

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The mass of a hydrogen atom is 1.673 X 10-24 g. How many hydrogen atoms are present in a 1.00g sample of hydrogen?

A substance is found to consist of 1.900g of silver, 0.250g of nitrogen, and 0.850g of oxygen. What is the percent by mass of oxygen in the compound?

Reference no: EM13557776

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