A gas mixture has three components: N2, F2, and He. Their partial pressures are 0.51atm, 0.74atm, and 0.13atm, respectively. What is the pressure of the gas mixture? Be sure your answer has the correct number of significant figures.
Question
A gas mixture has three components: N2, F2, and He. Their partial pressures are 0.51atm, 0.74atm, and 0.13atm, respectively. What is the pressure of the gas mixture? Be sure your answer has the correct number of significant figures.
Solution
The pressure of a gas mixture is simply the sum of the partial pressures of each individual gas. In this case, you just need to add together the partial pressures of N2, F2, and He.
Here's how you do it:
Pressure of N2 = 0.51 atm Pressure of F2 = 0.74 atm Pressure of He = 0.13 atm
Add these together:
0.51 atm (N2) + 0.74 atm (F2) + 0.13 atm (He) = 1.38 atm
So, the pressure of the gas mixture is 1.38 atm. This answer has three significant figures, which is appropriate given the number of significant figures in the original pressures.
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