Calculate the molality of the KOH solution having density 1.5 g/mL, when the molarity of the same solution is 2 M.
Answers
Answered by
9
Answer: 1.4 m
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute
= volume of solution in ml
Given : 2 moles of are dissolved in 1000 ml of the solution.
density =
Thus mass of solution =
mass of solute =
mass of solvent =mass of solution - mass of solute = (1500-112)g= 1388 g
Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.
where,
n = moles of solute = 2 moles
= weight of solvent in g = 1388 g
Molality =
Thus the molality of the solution is 1.4 molal.
Answered by
7
Answer:
1.4 m is the answer
Explanation:
just see the attached photo
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