Question

I need help with Chemistry: Mole Conversion It must be answered in complete detail

Answer 1

Answer:

As Per Given Information

Given mass of H₂O₂ ( Hydrogen Peroxide) 4.0 gm

We've been asked to find the number of moles in Hydrogen Peroxide .

First we calculate molecular mass of Hydrogen Peroxide .

Molecular mass of H₂O₂ = 1×2 + 16 × 2

Molecular mass of H₂O₂ = 2 + 32

Molecular mass of H₂O₂ = 34 gm

Now find the number of moles in given hydrogen peroxide .

$\diamond{\boxed{\blue{\bf{Number \: of \: moles \: = \frac{Given \: mass}{Molecular \: mass} }}}}$

Put the given value we obtain

$\sf \twoheadrightarrow \: Number \: of \: moles \: = \frac{4}{34} \\ \\ \sf \twoheadrightarrow \: Number \: of \: moles \: =0.117$

So, the number of moles is 0.117 .