What is the molality of pure water? a)55.5 b)3 c)1 d)4.5

1 Answer
anor277
Mar 23, 2018

#"Option a...."#

Explanation:

Water is concentrated stuff, it is (i) dense, and (ii) this density is combined with an exceptionally small molar mass.....

And we wants the quotient...#"moles of solute"/"kilograms of solvent"#...and here the solute and the solvent are the same thing...

And so we calculate...#((1000*g)/(18.01*g*mol^-1))/(1*kg)=55.5*mol*kg^-1#...

What is the #"molarity"# of water?

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