The number of molecules present in 5.6 mL of gas at STP is:

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Problem

The number of molecules present in 5.6 mL of SO2SO_2 gas at STP is: (1) 1.5×10201.5 \times 10^{20} (2) 1.5×10231.5 \times 10^{23} (3) 6.02×10206.02 \times 10^{20} (4) 3.01×10213.01 \times 10^{21}

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