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

What is the name for the cycles resulting from changes in Earth's movements and that may cause ice ages? A mammalian cycles B glacier cycles C Milank
Which is the correct use of the word genial? A. Marlene's genial nature was evident by her relentless grouchy attitude. B. The genial dog jumped up on me and
practice test. united history A. PLEASE HELPPP MEEE 6.) the programs of the second new deal were intended to do what? a.)provide relief? b.) help the economy t
provide a good definition of central idea
What features could be improved or added to make a battery powered clock more reliable?
Which word best describes the degree of overlap between the two data sets? A. high B. moderate C. low D. none
Match the folowing animals with the way the regulate there body temperatures? 1. Mammals A-endotherm B-ectotherm 2. Fish A-endotherm B-ectotherm
a member of a troubled family who is experiencing problems and is in need of emergency help may benefit most by calling
The midsegment of triangle ABC is LM. What is the length of AC if LM is 12 inches long?
a+b(2d*5d)+7654321-2234567