Question

The solubility of pore Nz at 298k and 1 atm pressure in 0.00068 mol/L
What is the concentration of N 2
dissolved in water under
atmospheric condition. The
partial pressure of Nz gas is
O. 7.8 atm​

Answer 1

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CHEMISTRY

The Henry's law constant for the solubility of N

2

gas in water at 298 K is 1.0×10

5

atm. The mole fraction of N

2

in air is 0.8. The number of moles of N

2

from air dissolved in 10 moles of water at 298 K and 5 atm pressure is?

December 20, 2019avatar

Sanjeetha Sahoo

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VIDEO EXPLANATION

ANSWER

Total pressure is 5 atm. The mole fraction of nitrogen is 0.8.

Hence,the partial pressure of nitrogen=P

T

×X=0.8×5=4 atm

According to Henry's law, P=KX

x is the mole fraction

K is the henry's law constant

P is the pressure in atm.

Substitute values in the above expression.

X=

1×10

5

atm

4 atm

=4×10

−5

=

10

n

n=4.0×10

−4

mol