Molality problem

[snmercer]

I don't know where to start. Could someone help?

 

A 7.67 M solution of an acid, HX, has a density of 1.192 g/mL. THe acid, HX, has a molar mass of 53.00 g/mol. Determine the concentration of this solution in molality, Xhx(mole fraction of HX), and %w/w(percent by mass). The solvent in this solution is water, H2O.

[Ozone]

Do not confuse molaRity with MolaLity. Here, you have both.

 

Check the density of water, the rest should fall into place.

 

Cheers,

 

O3

[hermanntrude]

here's a useful page from wikipedia. It lists all of the concentration measures you referred to

[thedarkshade]

Isn't [math]b=\frac{n}{m}[/math] used here?

[hermanntrude]

A formula is useless unless you define the terms.