gwongalogwongalo gwongalogwongalo
  • 18-01-2017
  • Chemistry
contestada

Assuming 100% dissociation, calculate the freezing point and boiling point of 3.28 m Na2SO4(aq).

Respuesta :

MissPhiladelphia
MissPhiladelphia MissPhiladelphia
  • 29-01-2017
For 100% dissociation:

Freezing point:

Tf sol'n = Tf solvent - (m x kf )

kf for water is -1.86 C/m and Tf for water is 0 C

Tf sol'n = 0 C - (3.28 m x (1.86 C/m))
Tf sol'n = -6.1008 C

Boiling point:

kb for water is 0.512, kb of water is 100 C

Tb sol'n = Tb solvent - (kb x m)
Tb sol'n = 100 + (0.512 x 3.28)
 Tb sol'n = 101.68 C
Answer Link

Otras preguntas

Which of the following statements best describes the role of African- Americans during the Civil War? (A) African-Americans were readily conscripted into combat
which is greater 9/10 or 6/8
One centimeter is what fraction of one meter
Caitlyn did 6/7 of the problems on her math quiz correctly and four incorrectly. She did all the problems. How many were there?
Which of the following people is most associated with providing treatment for the mentally ill? (A) Horace Mann (B) Dorothea Dix (C) Lucretia Mott (D) Eliz
The roller-coaster ride is POPULER. What kind of complement is the word in bold? a. indirect object b. objective complement c. predicate adjective d. predic
Why is the research plan pivotal to a research project?
How do you say Merry Christmas in Spanish?
in a particular class of 24 students, 14 are men. what fraction of the students in the class are men
Which is not a common style format? 1. American Psychological Association (APA) 2. Modern Language Association (MLA) 3.Internet Authority Association (IAA)