Question

If 0.600 moles of O2 were used during the chemical reaction below, how many grams of

Answer 1

133.92‬g

Explanation:

Given parameters:

Equation of the reaction    2PbS + 30₂ → 2PbO + 2SO₂

Number of moles of 0₂ = 0.6moles

Unknown:

Mass of PbO produced = ?

Solution:

The number of moles is the quantity used in chemistry to express the amount of particles contained in a substance.

           2PbS + 30₂ → 2PbO + 2SO₂

From the reaction;

        3 moles of O₂ will produce 2 moles of PbO

       0.6 moles of O₂  will then produce  $\frac{0.6 x 2}{3}$ = 0.4moles

Now since the we know the number of moles  of PbO;

   Mass of PbO = number of moles of PbO x molar mass

molar mass of PbO = 207.2 + 16 = 223.2g/mol

  Mass of PbO = 0.6 x 223.2 = 133.92‬g

learn more:

Number of moles brainly.com/question/1841136

Ideal gas brainly.com/question/13064292

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