What is the molar mass of oxygen (O2)? A. 1.204x1024 g/mol B.6.02x1023 g/mol C.15.9994 g/mol D. 31.9988 g/mol 2.  Answer the question below. Use the rubric in the materials for help if needed.  What is the molar mass of Ca3(PO4)2? Show all your work.   3.  How many atoms of sodium do you have if you have one mole of sodium? A. 1 atom of sodium B. 6.02x1023 of sodium C.  6 atoms of sodium D. 6.02x1032 atoms of sodium

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