Answer:
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"A compound that forms hydrogen bonds with water" is the one among the following choices given in the question that <span>has a higher solubility in water. The correct option among all the options that are given in the question is the first option. I hope that this is the answer that has actually come to your desired help.</span>
<span>Some
of the solutions exhibit
colligative properties. These properties depend on the amount of solute
dissolved in a solvent. For boiling point elevation, we calculate the increase in temperature by the equation:
</span><span>ΔT(boiling point) =
(Kb)mi
where Kb is a constant, m is the molality of the solution, i is the van't Hoff factor.
From the given data, we can easily calculate for i as follows:
</span>ΔT(boiling point) = (Kb)mi
103.45 - 100 = (0.512)3.90i
i = 1.73 <-------van't Hoff factor
0.05 mol of oxygen atom.
Explanation:
Mass of potassium hydroxide = 2.79g
Unknown:
Number of moles = ?
Solution:
To solve this problem, find the number of moles of the potassium hydroxide.
Number of moles of KOH =
Molar mass of KOH = 39 + 16 + 1 = 56g/mol
Number of moles of KOH = = 0.05mole
Now,
1 mole of KOH contains 1 mole of oxygen atom
0.05 mole of KOH will have 0.05 mole of oxygen atom.
Learn more:
Number of moles brainly.com/question/1841136
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Answer:
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