Explanation:
its 0.869 grams thick its boiling point is770degrees
This problem is describing the vapor-liquid equilibrium between benzene and toluene in which equal moles of each component are present in the vapor and the initial compositions in the liquid are required, considering that the vapor pressures of benzene and toluene are 750. torr and 300. torr respectively.
In this case, it turns out possible to use the Raoult's law in order to come up with a model for this system:
Thus, we infer that the compositions of benzene and toluene in the vapor are both 0.5 because equal number of moles are condensed. Next, since the mole fractions in the liquid phase sum 1, we rewrite the previous expressions as follows:
And insert one into the other, via the total pressure:
Now, we can start plugging in the numbers we were given:
Then, solve for the mole fraction of benzene in the liquid phase:
And finally, the mole fraction of toluene in the liquid phase:
Learn more:
There are a lot of empty space between the particles
pH of solution = 9.661
<h3>Further explanation
</h3>
pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.
pH = - log [H⁺]
So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.
pOH=-log[OH⁻]
pH+pOH=pKw
Answer:
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We can identify bias and avoid thinking errors when evaluating online information by making our personal findings and research from other sources and then comparing the two.