Question

solve it:-

Calculate the mass of 18.069 x 10^23 molecules of SO2.

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Answer 1

Hi friend
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Your answer
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Molecular mass of SO2 = [32 + (2×16)] u => [32 + 32] u => 64 u

So,
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Mass of 6.022 × 10²³ number of molecules of SO2 = 64 g

Mass of 1 molecule of SO2 = 64/6.022×10²³ g

Mass of 18.069 × 10²³ molecules of SO2 = (64 × 18.069 × 10²³)/(6.022 × 10²³) g

=> 192.031 g

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Answer 2

Hope this would help.