Solution:
1 mole of sucrose contains 22 x 6.023x 1023 of H-atoms
0.075 moles of sucrose contains 9.91 x 1023 of H-atoms.
The number of hydrogen atoms present in 25.6 g of sucrose (C12H22O11), which has a molar mass of 342.3 g is
1 mole of sucrose contains 22 x 6.023x 1023 of H-atoms
0.075 moles of sucrose contains 9.91 x 1023 of H-atoms.