Interpretation:
The molality of KCl solution is to be calculated.
Concept Introduction:
Molality: Molality is defined as the number of moles of solute per kg of the solvent.
In expression,
Thus,
Answer to Problem 80A
The molality of KCl solution is 10.63 mol/kg.
Explanation of Solution
Given information:
Mass of KCl = 75.3 gm
Mass of the solvent water = 95 gm = 0.095 kg
Write the expression for Molality.
Calculate the number of moles of
(Note: Molecular weight of KCl = 74.6 gm/mol)
Calculate the Molality of
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