How many moles of h2o2 are in 34.24 g?

1.01 moles (3 s.f.)

Explanation:

Number of moles= mass ÷Mr

*Mr stands for relative molecular mass and can be calculated from the periodic table

Mr of H₂O₂

= 2(1) +2(16)

= 2 +32

= 34

Number of moles

= 34.24 ÷34

= 1.01 moles (3 s.f.)

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