Question

How many ATOMS in a 49⋅g mass of sulfuric acid?

Answer 1

ANSWER :

Formula for sulfuric acid = H2SO4

Calculating the molar mass of H2SO4 :

=> ( 2*Atomic mass of H) + ( 1*Atomic mass of S) + (4*Atomic mass of O)

=> ( 2*1) + ( 1*32 ) + ( 4*16 )

=> 2 + 32 + 64 = 98 u

Calculating the number of moles in 49 g of H2SO4 :

Given mass (m) = 49 g

Mole = Given Mass / Molar Mass

=> Mole = 49g / 98g = 0.5

Therefore, number of moles is 0.5

Also, Mole = No. of particles/Avagadro's no.

=> 0.5 = No. of particles / 6.022x10^23

=> No. of particles = 0.5 * 6.022x10^23

=> No. of particles = 3.011x10^23

Therefore, 3.011x10^23 particles are present in 49 grams of sulfuric acid.

Hope this helps you mate☺☺