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Orlov [11]
4 years ago
6

Gasoline has an octane number of 70.

Chemistry
1 answer:
mariarad [96]4 years ago
5 0
Best Answer: o.n. = 70 means 70% isoctane for which o.n. = 100 and 30% of heptane for which o.n. = 0
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A mixture of methane and carbon dioxide gases contains methane at a partial pressure of 431 mm Hg and carbon dioxide at a
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Answer:

XCH₄ = 0.461

XCO₂ = 0.539

Explanation:

Step 1: Given data

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Step 2: Calculate the total pressure in the container

We will sum both partial pressures.

P = pCH₄ + pCO₂

P = 431 mmHg + 504 mmHg = 935 mmHg

Step 3: Calculate the mole fraction of each gas

We will use the following expression.

Xi = pi / P

XCH₄ = pCH₄/P = 431 mmHg/935 mmHg = 0.461

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Answer:

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Step 1: Data given

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c = 30000 J / (40.0 g * 15.0 °C)

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