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Harlamova29_29 [7]
3 years ago
15

How many moles are in 5.34 x 10*21 particles of Nitrogen?

Chemistry
1 answer:
Mariulka [41]3 years ago
4 0
Download the app photo math I thinks that gonna hel
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An unknown liquid has a vapor pressure of 88 mmhg at 45°c and 39 mmhg at 25°c. What is its heat of vaporization?
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The relation between vapour pressure , enthalpy of vapourisation and temperature is

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ln (88/ 39) = DeltaH / 8.314 (1 / 318 - 1 / 298)

0.814 = DeltaH / 8.314 (2.11 X 10^-4 )

DeltaH = -32.07 kJ


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