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
alexandr402 [8]
2 years ago
8

The solubility of a compound with a molecular weight of 233.2 is determined to be 27.9 g in 125.0 g of water at 398 K. Express t

his concentration in terms of molality. 0.957
Chemistry
1 answer:
sp2606 [1]2 years ago
5 0

Answer:

0.960 m

Explanation:

Given data

  • Mass of the solute: 27.9 g
  • Molar mass of the solute: 233.2 g/mol
  • Mass of the solvent: 125.0 g = 0.1250 kg

First, we will calculate the moles of solute.

27.9 g × (1 mol/233.2 g) = 0.120 mol

The molality of the compound is:

m = moles of solute / kilograms of solvent

m = 0.120 mol / 0.1250 kg

m = 0.960 m

You might be interested in
HNO3 + KOH + H2O + KNO3<br><br> ACID:<br> BASE:<br> SALT:
SSSSS [86.1K]

Explanation:

acid, HNO3

base, KOH

salt ,KNO3

4 0
2 years ago
What is the significance of enzymes in maintaining homeostasis in living organisms ?
GalinKa [24]
 Enzymes are needed for metabolic pathways in the body, respiration, digestion and other important life processes. When enzymes function properly, homeostasis is maintained. However, if an enzyme is lacking or has an incorrect shape due to genetic mutation, this can lead to disease within an organism.
7 0
3 years ago
Which of the following are the bark, roots, seeds, buds or berries of an aromatic plant?
djverab [1.8K]

Answer:

Spices

Explanation:

Herbs are the leaves.

Vegetables are the seeds.

Fruits are the seeds.

So spices are the only option left.

8 0
2 years ago
Is it possible to use subatomic particles as an energy source?
Alex17521 [72]

Yes, Is it possible to use subatomic particles as an energy source.

<h3>What are subatomic particles?</h3>

A subatomic particle is nothing but a particle which is smaller than an atom in size. Typically, an atom can be broken down into three subatomic particles, namely: protons, electrons, and neutrons.

Yes, Is it possible to use subatomic particles as an energy source.

There are instances when the protons and electrons in an atom's outermost shells are not strongly attracted to one another. It is possible to force these electrons out of their orbits.

They may move from one atom to another by exerting force. Electricity is made up of these moving electrons.

Learn more about subatomic particles here:

brainly.com/question/13303285

#SPJ1

8 0
2 years ago
The energy in a nuclear reaction comes from the transformation of mass to energy.
musickatia [10]
The answers are as follows:

1. TRUE, <span>The energy in a nuclear reaction comes from the transformation of mass to energy.
</span>
2. TRUE, <span>Although both fission and fusion generate energy, fusion produces much more energy than nuclear fission and produces less nuclear waste
</span>
3. TRUE, <span>In certain types of atomic bombs, a fuel, like plutonium-239, is bombarded with neutrons to create an uncontrolled nuclear reaction that splits the nuclei of the fuel.
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which radioisotope has the fastest rate of
    14·2 answers
  • Use the diagram below to answer the question.
    13·2 answers
  • What particle has a positive electrical charge and is found in the nucleus?
    5·2 answers
  • The boiling point of Kelvin scale is:<br>a) 237º K<br>b) 100°C<br>c) 100°K<br>d) 373°​
    11·1 answer
  • 20. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the cor
    15·1 answer
  • Drag and drop the correct component and reactants to fill in the equation for photosynthesis
    6·1 answer
  • Please help!!! due tomorrow and i’m really stuck!! thank you!
    14·1 answer
  • If 4.89 g of ZnCl2 is dissolved in enough water to give a total volume of 500 mL, what is the molarity of the solution
    6·1 answer
  • No copy on goógle:)..
    12·2 answers
  • what is the name of n2cl4? explain how you determined the bond type and the steps you used to determine the naming convention fo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!