3 years ago

Choose all the answers that apply.

Chemistry

1 answer:

AnnZ [28]3 years ago

8 0

Answer:

accepting your faults

seeing exercise as a treat

looking at your ultimate goal

Explanation:

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a 1.00litre vessel contains 0.215 mole of nitrogen gas and 0.0118 mole of hydrogen gas at 25°C. determine the partial pressure o

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A 3.0-L sample of helium was placed in container fitted with a porous membrane. Half of the helium effused through the membrane

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Explanation:

It is known that rate of effusion of gases are inversely proportional to the square root of their molar masses.

And, half of the helium (1.5 L) effused in 24 hour. So, the rate of effusion of He gas is calculated as follows.

$\frac{1.5 L}{24 hr}$

= 0.0625 L/hr

As, molar mass of He is 4 g/mol and molar mass of $O_{2}$ is 32 g/ mol.

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$\frac{\text{Rate of He}}{\text{Rate of Oxygen}} = \sqrt{\frac{32}{4}$

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This means that 0.022 L of $O_{2}$ gas effuses in 1 hr

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$\frac{1.5 L}{0.022 L/hr}$

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4 years ago