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How many CO2 molecules are present in 22 g of carbon dioxide?
A1.2044 x 10^24
B3.011 x 10^22
C6.022 x 10^23
D3.011 x 10^23
Answer & Solution
Correct answer: D. 3.011 x 10^23
22 g is 0.5 mol of CO2, which holds 0.5 x 6.022 x 10^23 = 3.011 x 10^23 molecules.
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