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Morgarella [4.7K]
3 years ago
9

A sample of nitrogen gas was collected via water displacement. since the nitrogen was collected via water displacement, the samp

le is saturated with water vapor. if the total pressure of the mixture at 21 °c is 0.99 atm, what is the partial pressure of nitrogen? the vapor pressure of water at 21 °c is 18.7 mm hg.

Chemistry
1 answer:
brilliants [131]3 years ago
5 0
I hope this helps :)

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Answer: 64.216\times 10^4grams of liquid sodium is required.

Explanation: To calculate the mass of liquid sodium, we use the formula:

q=nc\Delta T\\q=\frac{m}{M}c\Delta T

where,

q = heat required, 8.60MJ=8.60\times 10^6J   (Conversion factor: 1MJ = 1000000J)

m = Mass of liquid sodium, ?g

M = Molar mass of liquid sodium, 23g/mol

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\Delta T = change in temperature,  \Delta T=(510-500)K=10K    (Conversion factor: 0°C = 273K)

Putting values in above equation, we get:

8.60\times 10^6J=\frac{m}{23g/mol}\times 30.8J/Kmol\times 10K

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3 years ago
As the [ht] in a solution decreases, what happens to the [OH???
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Answer:

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