Question

If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass?

Select one:
a. 5.94% KCl
b. 8.55% KCl
c. 14.4% KCl
d. 16.8% KCl

Answer 1

strange question. usually they ask for concentration in moles/liter.

I think this would help you figure it out.

\[\frac{ mass~of~solute }{ mass~of~solution } = \frac{ mass_{KCL} }{ Mass_{Water}+Mass_{KCL} }*100\]

Answer 2

thanks

Answer 3

let me know how it goes

Answer 4

thanks, that actually helped more than anything else I tried...

Answer 5

what did you have before?

Answer 6

somewhere around 16 or 17

Answer 7

I'm assuming that wasn't it right?

Answer 8

absolutely not.