How many oxygen atoms are there in 7.00 g of sodium dichromate, Na2Cr2O7?
A. 0.187 oxygen atoms
B. 2.30 1021 oxygen atoms
C. 1.60 1022 oxygen atoms
D. 1.13 1023 oxygen atoms
Answer:D
How many oxygen atoms are there in 7.00 g of sodium dichromate, Na2Cr2O7?
A. 0.187 oxygen atoms B. 2.30 1021 oxygen atoms C. 1.60 1022 oxygen atoms D. 1.13 1023 oxygen atoms