How many grams of sulfur (S8) would have to be dissolved in 120.0 g of carbon tetrachloride to lower the freezing point by 1.90 degrees celsius?
kf = 29.8 K-kg/mol for CCl4
2007-03-07 08:48:39 · 2 answers · asked by Christie 1 in Science & Mathematics ➔ Chemistry
I guess you can use my question as a ref.
How many grams of sulfur (S8) would have to be dissolved in 110.0 g of carbon tetrachloride to lower the freezing point by 1.70 degrees celsius?
kf = 29.8 K-kg/mol for CCl4
Enter a numerical answer only, do not include units in the answer you enter
Correct, computer gets: 1.60945503355705
Hint: Don't forget to include the van't Hoff factor i, if it is needed.
Top
This is how I solve it:
(1.70)*(0.110)/(1)(29.8)=.0062751678
(32.066)*(8 atoms)*(.0062751678)=1.609756245
2007-03-08 14:10:43 · answer #1 · answered by Raki 3 · 0⤊ 0⤋
jrftjutyu
2007-03-07 16:59:16 · answer #2 · answered by marilyn b 1 · 0⤊ 0⤋