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aliya0001 [1]
3 years ago
12

1. What is the pressure, in atmospheres, exerted by a 0.500 mol sample

Chemistry
1 answer:
Vadim26 [7]3 years ago
8 0

Answer:

0.102 atmospheres

Explanation:

PV=nRT

P=nRT/V

P=0.5*0.082057*25/10=0.102 atmospheres

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You want to calculate the mass of NaH, I assume.  Otherwise, the question isn't clear.  It simply says calculate the mass(??)

 

So, calculate the moles of H2 gas that satisfy the conditions of 982 ml at 28ºC and 765 torr.  But you must subtract the vapor pressure of water at 28º to get the actual pressure of the H2 gas.  So, the actual conditions are 982 ml (0.982 L) and 301 K and 765-28 = 737 torr.

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