Question

26. Isoamyl salicylate ( = 208.25 g/mol) has a pleasant aroma and is used in perfumes and soaps. Which of the following combinations gives a 0.75 m solution of isoamyl salicylate in ethyl alcohol (d = 0.7893 g/mL)?
A. 117.2 g isoamyl salicylate in 950.0 mL of ethyl alcohol
B. 117.2 g isoamyl salicylate in 750.0 mL of ethyl alcohol
C. 117.2 g isoamyl salicylate in 750.0 mL of solution
D. 117.2 g isoamyl salicylate in 592.0 g of ethyl alcohol

Answer 1

this question is confusing me, if you can help me with this it will help alot

Answer 2

use the molality formula to work it out

\(molality=\dfrac{n_{solute}}{kg_{solvent}}\)

you can plug values that stay constant in the question and find the unknown *cough* ethyl alcohol *cough*

Answer 3

So would i use the density of the solvent? the .789?

Answer 4

we'll first find the mass of the solvent, then use the density to find it's volume

Answer 5

thanks!

Answer 6

no problem !