What symbol is used to denote ‘molality’?(a) M(b) m(c) mM(d) nThis question was posed to me in quiz.This question is from Expressing Concentration of Solutions topic in chapter Solutions of Chemistry – Class 12

What symbol is used to denote ‘molality’?(a) M(b) m(c) mM(d) nThis

1.	What symbol is used to denote ‘molality’?(a) M(b) m(c) mM(d) nThis question was posed to me in quiz.This question is from Expressing Concentration of Solutions topic in chapter Solutions of Chemistry – Class 12
Answer» Correct option is (b) m Easiest explanation: UNIVERSALLY, ‘m’ is used to denote molality concentrations. E.g. 2 m means a SOLUTION having concentration 2 molal (2 moles of solute/kg solvent). ‘M’ is used to molarity. E.g. 2 M means a solution having concentration 2 MOLAR (2 moles of solute/L solution). ‘mM’ corresponds to milli-molar concentration and ‘n’ DENOTES number of moles of a component.

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