Question

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

Answer 1

Molar mass of Hydrogen peroxide

• 2(1)+2(16)
• 34g/mol

No of moles

• Given mass/Molar mass
• 4/34
• 0.117mol

Answer 2

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 \: = (Given \: mass)/(Molecular \: mass) }}}}`

Put the given value we obtain

`\sf \twoheadrightarrow \: Number \: of \: moles \: = (4)/(34) \\ \\ \sf \twoheadrightarrow \: Number \: of \: moles \: =0.117`

So, the number of moles is 0.117 .