Question

No.of moles of carbonic acid in31 g

Answer 1

0.01612258842353 no.of moles in 31g of carbonic scid

Answer 2

Heya Friend !!

Formula of Carbonic Acid is H2CO3

Given mass = 31 g

Molecular mass of H2CO3 = 2 × (molar mass of H) + (molar mass of carbon) + 3 × (molar mass of oxygen)
= (2×1) + 12 + (3×16)
= 2 + 12 + 48
= 62 g / mol

number of moles = ?

We know that number of moles = Given mass (m) / molecular mass (M)

n = m / M
n = 31 / 62
n = 1 / 2
n = 0.5 moles

Hence , the number of moles of carbonic acid in 31 g is 0.5 .