jasflo99 jasflo99

22-04-2018
Chemistry

contestada

determine the freezing point of a solution that contains 0.31 mol of sucrose in 175 g of water

Respuesta :

mkryukova19 mkryukova19

22-04-2018

ΔT= T (solvet freezing point)-T (solution) =T(water freezing point)-T(solution)
ΔT =0⁰C - T(solution)

ΔT=[tex] K_{f} *m[/tex]

molality =(number mol solute)/kg solvent = 0.31mol/0.175 kg =(0.31/0.175)m
K(f water)=1.86⁰C/m
ΔT=1.86⁰C/m*(0.31/0.175)m=3.29⁰C
T(solution) =0⁰C - 3.29⁰C =3.29⁰C

Answer Link

Otras preguntas

George Washington Carver wanted to help struggling farmers find a way to grow crops for themselves and for profit. Carver suggested alternative crops to cotton,

A steel company is considering the relocation of one of its manufacturing plants. The company's executives have selected three areas that they believe are suita

7. What is the most likely reason the author chose to include the section A Smooth Operation? a. to suggest that safety is the top priority for roller coaster e

Ms. P was seen by a psychiatric nurse in the psychiatric outpatient department of a general hospital. She was a well-dressed, 24-year-old woman who had numerous

Let A=([1,0,1],[0,0,1],[1,1,2]). Find tr(A), A² and A³.

Which type of bandage turn would the nurse use for a stump that is the result of an amputation? a) Spiral turn b) Circular turn c) Recurrent turn d) Figure-of-e

What might you expect in a patient with a lack of suppressor T cells? a) Allergies or auto-immune disease b) Immunosuppression c) High levels of infectious dise

What is the absolute deviation of 30 in this data set? {26, 35, 27, 30, 22} 02 O 3 05 08

Choose the correct option. Fatima had the following income in 2022: $55,000 in employment income; $5,000 in net rental income; $1,000 in dividends. She has carr

Indicate whether a paired analysis or a two-sample analysis would be appropriate. Members from the Disney Vacation Club were randomly selected and those who had