What is the molarity of #"50% w/w"# #HCl# solution for which #rho_"solution"=1.15*g*cm^-3#?

1 Answer
Jul 27, 2017

Answer:

You have not specified a solvent.......and the question has not been written by a chemist......

Explanation:

We assume an aqueous solution of hydrochloric acid, and clearly a #1*mL# volume of the stuff contains #50%xx1*cm^3xx1.15*g*cm^-3=0.575*g# #HCl#.....

And thus the concentration is.......#"moles of solute"/"volume of solution"#

#((50%xx1*cm^3xx1.15*g*cm^-3)/(36.46*g*mol^-1))/(1xx10^-3*L)-=15.8*mol*L^-1#.

The most concentrated hydrochloric acid you can buy is #36-38%(w/w)#; typically we are supplied conc. #HCl# as a #10.5*mol*L^-1# solution in the laboratory.