The number of hydrogen ions in 1.0dm\(^3\) of a 0.25 mole tetraoxosulphate(Vl) acid solution is
[Avogadro constant = 6.02 x 10\(^{23}\)]

a

1.45x1023

b

1.50 x l023

c

3.00x1023

d

3.15x1023

e

6.00x1023

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Correct Option
b

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Discussions (5)

Roland1201
1 year ago

Since H₂SO₄ is a strong acid, it completely dissociates into 2H⁺ and SO₄²⁻.

Number of moles of H₂SO₄ = 0.25 mol
Number of moles of H⁺ = 2 × 0.25 = 0.5 mol

Using Avogadro's constant:

Number of H⁺ ions = 0.5 mol × 6.02 × 10²³ mol⁻¹
= 3.01 × 10²³

mejoyce
1 year ago

Corrections has not been made to this question!

blackjoker210
1 year ago

avogadro's constant is 6.02*10^23

Chrisplendour
1 month ago

please @myschool correct this.

option C ✅ is correct.
3*10²³.

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