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mixas84 [53]
3 years ago
11

Which of the following combines with harmful gases to create air pollution?

Chemistry
1 answer:
kvv77 [185]3 years ago
7 0
Fertilizers contain a lot of nitrogen to boost the growth rate of plants, smoke contains carbon dioxide, carbon dioxide, nitrogen oxide, and mostly water vapor that contribute to the growing rate of global warming, a particulate is basically matter in its particle form, and sewage is mostly waste water and excrement's, so your answer out of all these has to be, B: Smoke
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What is the molarity if I take 10mL of 20 volumes Hydrogen Peroxide?
Kryger [21]

Answer:

1.635 M

Explanation:

Given:

10 mL of 20 volumes Hydrogen Peroxide

Here,

20 volumes of Hydrogen Peroxide means that on decomposition of 1 mL of H₂O₂ 20 mL of O₂ is obtained

also,

means 1 dm³ of H₂O₂ solution produces 20 dm³ oxygen

Now,

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20 dm³ oxygen = \frac{\textup{20}}{\textup{24.47}}  moles

or

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also,

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thus,

1 dm³ of solution must contain 2 × moles of O₂ as moles of H₂O₂

thus,

Number of moles of H₂O₂ = 2 × 0.817

or

Number of moles of H₂O₂  = 1.635 moles

Hence,

For 20 volume hydrogen peroxide is 1.635 M

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3 years ago
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