Question

Calculate the total Number of
moles atom present in 49 gm H₂ so4​

Answer 1

Answer:

3.011 x 10^23 molecules .

Explanation:

Mass of Sulphuric (H2SO4) = 49g

We have the number of molecules in 49g of H2SO4

Molecular mass of H2SO4 = (Atomic mass of H) x 2 + (Atomic mass of S) x 1 + (Atomic mass of O) x 4

Molecular mass of H2SO4 = ( 1 x 2) + (32 x 1) + (16 x 4)

= 2 + 32 + 64

= 98.

Now

Moles in the given H2SO4(n) =  Mass of H2SO4 in grams/Molecular mass of H2SO4

= 49/98

= 1/2

= 0.5

: n = 0.5 mol

: 1 mol of H2SO4 contains 6.022 x 10^23 molecules.

: 0.5 mol of H2SO4 contains 0.5 x 6.022 x 10^23 molecules.

= 3.011 x 10^23 molecules .

Hope its helps u YO....:)

@Av