Q.

Sulphur trioxide, SO3, is made by oxidizing sulphur dioxide, SO2, according to the equation, 2SO2+O22SO3. If a 16.0g sample of SO2 yields 18.0g of SO3, what is the percent yield?

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a

90.0%

b

100.%

c

70.0%

d

80.0%

answer is C.

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Detailed Solution

% yield=nso3nso2×100 =18801664×100 =90%

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