The number of hydrogen atoms present in 25.6 g of sucrose (C12H22O11) which has a molar mass of 342.3 g is :

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22 x1023

9.91 x 1023

11x 1023

44 x 1023

answer is B.

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Detailed Solution

Moles of C12H22O11=25.6342.3=0.0747Number of H-atoms=0.0747 x 22 x 6.023 x 1023 = 9.91x1023

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