maddygabbard7945 maddygabbard7945
  • 03-08-2022
  • Chemistry
contestada

A solution is made by dissolving 42.3g of potassium hydroxide in 329g of water what is the molality of the solution?

Respuesta :

jsimpson11000 jsimpson11000
  • 03-08-2022

Answer:

2.34 molality

Explanation:

Mole weight of KOH ( using periodic table ...rounded to 3 s.f.) =

              56.1 gm/mole

Number of moles in 43.2 g

  43.2 g  /  56.1 gm / mole =.770 mole

molality = .770 mole / .329 kg = 2.34 m

Answer Link

Otras preguntas

Nick said, "I was about to ask to see the rubies when the phone rang and Gatsby took up the receiver." The rubies? What is Nick referring to?
Quadrilateral HIJK has sides measuring 12 cm, 26 cm, 14 cm, and 30 cm. Which could be the side lengths of a dilation of HIJK with a scale factor of 1.5?
PIN MULTIPLE CHUICE QUESTION In the "good ol' days," who settled disputes?
Can someone help me out, please?
Please see the image provided.....
Doctor Company prepared the tabulation below at December 31, 2017. Net Income $307,000 Adjustments to reconcile net income to net cash provided by operating act
Whenever you are exercising outdoors you should always _____ , _____ or ______ before you start
On December 31, 2020, Grand Company had $1,232,000 of short-term debt in the form of notes payable due February 2, 2021. On January 21, 2021, the company issued
Blood that is rich in oxygen leaves the heart through the _____. aorta septum right ventricle left atrium
What city’s are in Utah