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Question

Find the total number of moles of electrons present in 24.088×1023 SO2 molecules.

A
132 moles
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B
128 moles
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C
232 moles
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D
328 moles
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Solution

The correct option is B 128 moles
24.088×1023 SO2 molecules =24.088 × 10236.022 × 1023 moles = 4 moles of SO2
The number of electrons in one molecule of SO2=16+(8×2)=32 electrons.
So, the number of moles of electrons in one mole of SO2=32 moles
Therefore, the total number of moles of electrons in 4 moles of SO2 = 128 moles

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