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3 years ago

Pb + PbO2 + 2H2SO4 2PbSO4 + 2H2O How many moles of water are produced if 5.43 mol PbO2 are consumed?

Chemistry

2 answers:

natita [175]3 years ago

6 0

Answer: 10.86 moles

Explanation: For the given chemical reaction. 2 moles of lead combines with 2 moles of lead oxide and 2 moles of sulphuric acid to produce 2 moles of lead sulphate and 2 moles of water.

$Pb+PbO_2+2H_2SO_4\rightarrow 2PbSO_4+2H_2O$

1 mole of lead oxide $(PbO_2)$ produces 2 moles of water $(H_2O)$

Thus 5.43 moles of lead oxide $(PbO_2)$ produces = $\frac{2}{1}\times 5.43=10.86$ moles of water $(H_2O)$

tresset_1 [31]3 years ago

4 0

5.43 times 2 = 10.86

10.9 is your answer.

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2 years ago

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Titration of a 20.0-mL sample of acid rain required 1.7 mL of 0.0811 M NaOH to reach the end point. If we assume that the acidit

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Answer:

Concentration of sulfuric acid in the acid rain sample is 0.0034467 mol/L.

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Volume of NaOH = 1.7 ml = 0.0017 L

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According to reaction, 2 mol of NaOH neutralize 1 mol of sulfuric acid.

Then 0.0001378 mol of NaOH will neutralize:

$\frac{1}{2}\times 0.0001378 mol=6.8935\times 10^{-5} mol$ of sulfuric acid.

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Concentration of sulfuric acid in the acid rain sample is 0.0034467 mol/L.

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3 years ago

PLS HELP Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred t

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Answer: In simplest case mass of reactants is same as mass of products.

Without thinking this question deeper, mass of ZnCl2 would be 49, but..

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2 years ago

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2 years ago

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2 years ago