A student isolated 25 g of a compound following a procedure that would theoretically yield 81 g. What was his percent yield?
2 answers:
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Answer: The molality of solution is 0.66 mole/kg
Explanation:
Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.
where,
n = moles of solute
= weight of solvent in g
moles of =
Now put all the given values in the formula of molality, we get
Therefore, the molality of solution is 0.66 mole/kg