How many hydrogen molecules are in 2.75 L of H₂ gas at STP?
A) 1.66 x 1024 molecules
B) 2.19 x 1023 molecules
C) 4.90 x 1024 molecules
D) 7.39 x 1022 molecules
E) 9.77 x 1021 molecules
Correct Answer:
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