Sweat is a mixture of water, dissolved solids, and chemicals. How does the water become separated from the sweat leaving a perso
2 answers:
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Answer: The molecular mass of this compound is 131 g/mol
Explanation:
Depression in freezing point:
where,
= depression in freezing point =
= freezing point constant =
m = molality
i = Van't Hoff factor = 1 (for non-electrolyte)
= mass of solute = 0.49 g
= mass of solvent (cyclohexane) = 20.00 g
= molar mass of solute = ?
Now put all the given values in the above formula, we get:
Therefore, the molar mass of solute is 131 g/mol
<h2>Answer:
atoms</h2>
Explanation:
The given formula of the compound is
The formula says
Every mole of contains
moles of atoms of hydrogen.
Given that number of moles of compound is
So,the number of moles of hydrogen atoms present is
Since each mole has atoms,
moles has
atoms.