A 5 molar solution is 27.75% CaCl2 by mass, what is the density of the solution?(a) 1 g/cm^3(b) 2 g/cm^3(c) 3 g/cm^3(d) 4 g/cm^3I have been asked this question in an international level competition.I'd like to ask this question from Concentration topic in chapter Moles, Density & Concentration of Basic Chemical Engineering

A 5 molar solution is 27.75% CaCl2 by mass, what is the density of the

1.	A 5 molar solution is 27.75% CaCl2 by mass, what is the density of the solution?(a) 1 g/cm^3(b) 2 g/cm^3(c) 3 g/cm^3(d) 4 g/cm^3I have been asked this question in an international level competition.I'd like to ask this question from Concentration topic in chapter Moles, Density & Concentration of Basic Chemical Engineering
Answer» Correct option is (B) 2 g/cm^3 The EXPLANATION is: LET the mass of Solution be 100 grams, => moles of CaCl2 = 27.75/111 = 0.25, Density of solution = 5*(100/0.25) = 2000 kg/m^3 = 2 g/cm^3.

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