1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataliya [291]
3 years ago
5

What would you need to do to calculate the molality of 10 g of NaCl in 2 kg of

Chemistry
1 answer:
jasenka [17]3 years ago
7 0

Answer:

O B. Convert the 10 g of NaCl to moles of NaCl.

Explanation:

The formula for finding the molality is m=moles of solute/kg of solvent. The solute for this question is NaCl and the solvent is water.

(10g NaCl)(1 mol NaCl/58.44g NaCl)=0.1711 mol NaCl

58.44 is the molar mass of NaCl

m=0.1711 mol NaCl/2 kg H2O

m=0.085557837

You might be interested in
What is the mass of alliminum?
Gennadij [26K]

Answer:

26.981539 u

Atomic number: 13

Symbol: Al

Electron configuration: [Ne] 3s²3p¹

5 0
3 years ago
Read 2 more answers
How do the change of stress cause a shift in the equilibrium system of your solutions?
matrenka [14]

Answer:

Stress changes everything.

Explanation:

Stress can make people, animals, solids, liquids, gases, plasma and even solutions shift due to friction, anger, hatred and more.

3 0
3 years ago
What is the [oh−] of a solution if its ph = 8.78? answer in units of m?
dexar [7]
PH = -log([H+])
[H+] = 10^(-pH)

[H+] = 10^(-8.78) = 1.65*10^-9

[H+][OH-] = Kw
Kw = 1.0*10^-14 at 25 degrees celsius.

[OH-] = Kw/[H+] = (1.0*10^-14)/(1.65*10^-9) = 6.06*10^-6

The concentration of OH- ions is 6.1*10^-6 M.
7 0
4 years ago
Which tool was most likely used in a procedure if the lab report shows that approximately 300 mL of water was used ?
Travka [436]

Graduated Cylinder is the answer to this.


4 0
3 years ago
Read 2 more answers
matter is passed down from the living part of an ecosystem to the non living part when witch of the following take place ?
Ivenika [448]
I don’t know about that
7 0
3 years ago
Other questions:
  • When water is moved through a pipe by a windmill, work is accomplished.
    15·2 answers
  • I can balance that freaking equation
    12·1 answer
  • When dissolved in 1000 g of water, which chemical compound will produce a solution with the greatest freezing point depression?
    14·2 answers
  • The modern-day quantum model of the atom is better than John Dalton’s model because it
    10·1 answer
  • HELP QUICK!!! Describe the physical properties of water
    9·2 answers
  • The man is being warmed by?<br>radiation<br>convention<br>conduction<br>​
    15·1 answer
  • Compounds of _______________, such as proteins, fats, and carbohydrates, are necessary for life on Earth. *
    11·2 answers
  • Before there is a transfer of charges between objects, they are uncharged. What does this mean?
    7·2 answers
  • Which compound is impossible?<br>A. Zns<br>B. Na2O<br>C. Ca3P2<br>D.LiCl2​
    13·1 answer
  • What is kinetic energy of a 155 kg object moving at speed of 20 m/s
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!