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2. Atoms & Elements - Part 3 of 4

2. Atoms & Elements / Calculating Molar Mass / Problem 7

Problem 7

Calculate the molar mass of element X if an 83.6-g sample of the compound X₂O₃ contains 39.4 g of oxygen atoms.

A

21.3 g

B

26.9 g

C

33.5 g

D

24.6 g