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Chemistry - Concentration Terms Question with Solution | TestHub

ChemistryConcentration TermsConcentration termMedium2 minPYQ_2021
ChemistryMediumassertion reason

An aqueousKClsolution of density1.20 g mL-1has a molality of3.30 mol kg-1. The molarity of the solution inmolL-1is____.(The Nearest integer)
[Molar mass ofKCl=74.5 g]

Answer:
3
Solution:

Molality m=M×10001000×d-M×Msolute 

3.3=M×10001000×1.20-M×74.5

3960-245.85M=1000M

1245.85M=3960

M=39601245.85=3.173M

Stream:JEESubject:ChemistryTopic:Concentration TermsSubtopic:Concentration term
2mℹ️ Source: PYQ_2021

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