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3 years ago

A mixture of He

Chemistry

1 answer:

aksik [14]3 years ago

3 0

Answer : The partial pressure of nitrogen gas in the mixture is, 9.88 atm

Explanation :

According to the Dalton's Law, the total pressure of the gas is equal to the sum of the partial pressure of individual gases.

Formula used :

$p_T=p_{He}+p_{Ar}+p_{N_2}$

where,

$p_T$ = total pressure of gas = 13.6 atm

$p_{He}$ = partial pressure of helium gas = 1831 torr = 2.41 atm

$p_{Ar}$ = partial pressure of argon gas = 997 torr = 1.31 atm

Conversion used: (1 atm = 760 torr)

$p_{N_2}$ = partial pressure of nitrogen gas = ?

Now put all the given values in the above formula, we get:

$13.6=2.41+1.31+p_{N_2}$

$p_{N_2}=9.88atm$

Thus, the partial pressure of nitrogen gas in the mixture is, 9.88 atm

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Putting values in above equation, we get:

$\text{Mass percent of hydrogen gas}=\frac{1.136g}{13.22g}\times 100=8.59\%$

Hence, the mass percent of nitrogen gas and hydrogen gas is 91.41 % and 8.59 % respectively.

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