ttyllthyx8456 ttyllthyx8456

01-08-2017
Chemistry

contestada

20 g of nh4cl is added to 13.9 g of water. calculate the molality of the solution.

Respuesta :

Willchemistry Willchemistry

02-08-2017

Molar mass NH4Cl = 53.491 g/mol

number of moles solute :

n = m / mm

n = 20 / 53.491

n = 0.373 moles

solvent in kg :

13.9 / 1000 => 0.0139 kg

Therefore:

m = moles / volume

m = 0.373/ 0.0139

=> 26.83 molal

Answer Link

Otras preguntas

As the civil war dragged on why was the north in better shape to win than the south?

Which of the following benefit from Social Security? Select all that apply. people who paid into the system and are now retired folks who have become disabled p

In what way (or ways) is the current knowledge revolution a child of the industrial revolution?

What are some additional requirements you feel should be added, and why?

Europe is united under one government. True False

the ability of whirligig beetles to gradually release a foul-tasting substance most likely results from

What type of group therapy could a person consider if wanting to go to therapy sessions with a spouse? a. family therapy b. self-help group c. reaction group

If you are addicted to something, you feel better when you have it; and, after a period of being without it, you begin to feel worse. True False

What would 2.4E4 L if hydrogen gas weigh?

what happens when a problem says per pound