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Kitty [74]
1 year ago
7

A mixture of three noble gases has a total pressure of 1.25 atm. The individual pressures exerted by neon and argon are 0.68 atm

and 0.35 atm, respectively. What is the partial pressure of the third gas, helium? Use mc031-1.jpg. 0.22 atm 0.33 atm 1.03 atm 2.28 atm
Chemistry
2 answers:
miskamm [114]1 year ago
6 0

<u>Given information:</u>

Gas mixture containing: Ne + Ar + He

Total pressure P = 1.25 atm

Partial pressure pNe = 0.68 atm

pAr = 0.35 atm

<u>To determine:</u>

Partial pressure of He i.e. pHe

<u>Explanation:</u>

As per Dalton's law, the total pressure of a gas mixture is equal to the sum of partial pressure of the gases

P = pNe + pAr + pHe

pHe = P - (pNe+pAr) = 1.25 - (0.68 + 0.35) = 0.22 atm

<u>Answer:</u>

Partial pressure of He is 0.22 atm

vlabodo [156]1 year ago
5 0
Add the Pressure of neon and argon that is 0.68 +0.35= 1.03
Total pressure that is 1.25 -1.03=0.22 atm
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