Chemistry - Concentration Terms Question with Solution | TestHub
ChemistryConcentration TermsConcentration termMedium2 minQB
ChemistryMediumsingle choice
2.5 L of 0.04 M aqueous solution of KCl was diluted by adding 500 mL of water. The molality of the resultant solution is approximately (take the density of the solution as 1 g/mL):
Options:
Answer:
B
Solution:
Moles of KCl = 2.5 × 0.04 = 0.10 mol. Final volume = 3.0 L, so concentration = 0.10/3.0 = 0.033 M.
For a dilute aqueous solution, molality is about the same as molarity: 0.033.
Answer: (B).
Stream:JEESubject:ChemistryTopic:Concentration TermsSubtopic:Concentration term
⏱ 2mℹ️ Source: QB
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