contestada

When hydrogen peroxide
decomposes, what mass of
hydrogen peroxide is needed
in solution to produce 1.6 g of
oxygen gas?

Respuesta :

Answer

34g

Explanation:

equation:2H2O2 ------------ 2H2O + O2

mole ratio:  2:               2      :     1

RMM of O2 - (16*2) = 32

RFM of H2O2 - (1*2) + (16*2) = 34

1 MOLE O2 - 32g

     ?            -  1.6g

1.6/32 = 0.5 MOLES

0.5*2 = 1 MOLE OF H2O2

I*34 = 34 g

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