Determine the number of H atoms in 3.25 g of formaldehyde, CH2O. (6 pts)

Question

Question

Answer 1

Answer #1

Gram molecular weight of CH2O = 12+ 1*2 + 16 = 30g/mole

weight of CH2O = 3.25g

atomicity of H in CH2O = 2 ( atomicity is no of atoms in a molecule )

no of H atoms in CH2O = W*6.023*10^23* atomicity of Hydrogen/G.M.Wt

= 3.25*6.023*10^23*2/30 = 1*10^22 H atoms

Answer 2

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