Question

what is the no of mole of 24.5gm of h2so4 ?​

Answer 1

Answer:

0.25

Explanation:

h2=2

so4=96

h2so4=98

24.5/99=0.25

Answer 2

Answer:-

0.25 mole

Explanation:-

Given:-

→ Mass of H₂SO₄ = 24.5g

To find:-

→ Number of moles

Solution:-

In H₂SO₄ [ Sulphuric Acid ], three elements are present i.e. Hydrogen, Sulphur and Oxygen.

• Atomic mass of Hydrogen (H) = 1u

• Atomic mass of Sulphur (S) = 32u

• Atomic mass of Oxygen (O) = 16u

Hence, molecular mass of H₂SO₄ :-

= 1×2 + 32 + 16×4

= 2+32+64

= 98u

∵ Molecular mass of H₂SO₄ is 98u.

∴ Molar mass of H₂SO₄ is 98g/mol.

No of moles = Given Mass/Molar mass

= 24.5/98

= 0.25 mole

Thus, 0.25mole is present in 24.5g

of H₂SO₄ .