105 g water is saturated with ammonia gas to form a solution of density 1.0g / mL and containing 30g ammonia, by mass. What is the volume of solution formed?

1 Answer
anor277
Aug 1, 2017

Well, clearly you have a solution mass of #135*g#.....agreed?

Explanation:

And you have specified the density, #rho_"solution"=1.0*g*mL^-1#.

And since #rho="Mass of solution"/"Volume of solution"#, by definition.......

#"Volume of solution"="Mass of solution"/rho=(135*cancelg)/(1.0*cancelg*mL^-1)#

#=135*1/(mL^-1)=135*1/(1/(mL))=135*mL#....

#[NH_3]="Moles of ammonia"/"Volume of solution"=((30*g)/(17.03*g*mol^-1))/(0.135*L)=13.0*mol*L^-1.#

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