Calculate the number of molecules in 0.000756 grams of gaseous oxygen.
A 1.42 x 10¹⁹ molecules
B.1.46 x 10²² molecules
C.2.85 x 10¹⁹ molecules
D.4.02 x 10-²⁶molecules
E 4.55 x 10²⁰ molecules

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