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True [87]
3 years ago
14

A total of 0.829 L of hydrogen gas is collected over water at 33.0°C. The total pressure is 794 torr.

Chemistry
1 answer:
Natalija [7]3 years ago
5 0

Answer:

P(H₂) = 807.2 torr

Explanation:

According to the Dalton law, the pressure of mixture of a gas is sum of the partial pressure of its mixing component gases.

P(total) = P1 + P2 + P3 +....

In given problem,

Total pressure is = 794 torr

Partial pressure of water = 13.2 torr

Partial pressure of hydrogen = ?

Solution:

P(total) = P(H₂O)  + P(H₂)

P(H₂) = P(total) - P(H₂O)

P(H₂) = 794 torr - 13.2 torr

P(H₂) = 807.2 torr

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How many moles of LiOH are required to make 4.2 liters of a 0.98 M
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Answer:

4.12 mol  

Explanation:

Given data:

Moles of LiOH  required = ?

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Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

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