The image above shows a gas held in a chamber with a fixed volume. The gas begins with a temperature 333 K and a pressure of 4.0
0 atm (green) that increases to 7.65 atm (orange) as the gas is heated. What is the temperature of the gas when the pressure increases to 7.65 atm?
2 answers:
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Answer:
pH = 10.11
Explanation:
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In this case, since it is possible to realize that this base is able to acquire one hydrogen atom from the water:
We can therefore set up the corresponding equilibrium expression:
Which can be written in terms of the reaction extent, :
Thus, by solving for we obtain:
However, since negative solutions are now allowed, we infer the correct is 0.0001285 M; thus, the pOH can be computed:
And finally the pH:
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