How many molecules of sulfur trioxide are in 78.0 grams?

(A) 7.33 x 10^23

(B) 5.87 x 10^23

(C) 3.76 x 10^27

(D) 0.974

(E) none of the above

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How many molecules of sulfur trioxide are in 78.0 grams? (A) 7.33 x 10^23 (B) 5.87 x 10^23 (C) 3.76 x 10^27 (D) 0.974 (E) none of the above