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
ZanzabumX [31]
3 years ago
9

What is the number of molecules of c2h5oh in a 3m solution that contains 4.00kg h2o?

Chemistry
1 answer:
Veronika [31]3 years ago
3 0
 The number  of C2H5OH  in a 3 m solution that contain 4.00kg H2O is calculate as below

M = moles of the solute/Kg  of water

that is 3M = moles of solute/ 4 Kg
multiply  both side by  4

moles of the  solute  is therefore = 12  moles

by use of Avogadro law constant

1 mole =6.02 x10^23  molecules

what  about 12 moles

=12 moles/1 moles  x 6.02 x10^23 = 7.224 x10^24 molecules
You might be interested in
A 25. 0-ml sample of 0. 150 m hydrocyanic acid is titrated with a 0. 150 m naoh solution. What is the ph beforeany base is added
Ray Of Light [21]

Answer:

stars,auroras,a neon sign

Explanation:

just did it

4 0
3 years ago
At chemical equilibrium the amount of blank because
Norma-Jean [14]

Answer:

In a chemical reaction, chemical equilibrium is the state in which the forward reaction rate and the reverse reaction rate are equal. The result of this equilibrium is that the concentrations of the reactants and the products do not change.

Explanation:

5 0
3 years ago
3. In the picture, a girl with a weight of 540 N is balancing on
svet-max [94.6K]

Answer:

340 N

Explanation:

<u>Force formula</u>

The force formula is defined by Newton's second law of motion: Force exerted by an object equals mass times acceleration of that object: F = m ⨉ a. To use this formula, you need to use SI units: Newtons for force, kilograms for mass, and meters per second squared for acceleration.

<u>Equilibrium</u>

It is a state of rest or balance due to the equal action of opposing forces. equal balance between any powers, influences, etc.; equality of effect. mental or emotional balance; equanimity: The pressures of the situation caused her to lose her equilibrium.<u> </u>

6 0
3 years ago
1. Which statements represent properties of intermolecular forces? Select all that apply.
kumpel [21]

Answer:

C

Explanation:

Only this choice is applicable and correct.

The inter-molecular forces of attraction between the molecules must have been broken (overcome) before the molecules can gain an increase in the kinetic energies between them.

8 0
3 years ago
With the kinetic energy of a sample increases the____ will also increase
klemol [59]

Answer:

Its Temperature.

Explanation:

  • Kinetic energy is the energy possessed by a body while in motion. Potential energy on the other hand is the energy possessed by a body based on its position.
  • Kinetic energy of a body is determined by the equation; K.E = 3RT/2;
  • From the equation, kinetic energy is directly proportional to the temperature of the system and therefore an increase in the kinetic energy of a sample causes an increase in temperature of the system.
4 0
3 years ago
Other questions:
  • A balloon filled with air has a volume of 4.24 liters at 23.00°
    6·2 answers
  • Solid iron(II) hydroxide decomposes to form solid iron(II) oxide and liquid water. Write the balanced chemical equation for the
    8·1 answer
  • When water reaches its boiling point and turns into water vapor what happens to its molecular structure
    9·1 answer
  • The recommended daily intake of potassium ( K ) is 4.725 g . The average raisin contains 3.513 mg K . Fill in the denominators o
    9·1 answer
  • 1. (8 pts) Consider if the initial unknown acid solution used in this experiment started out more dilute. Predict any difference
    10·1 answer
  • 1) A light bulb takes in 30 of energy per second. It transfers 3j as use
    7·1 answer
  • An atom's electrons have a great effect on
    10·2 answers
  • Which buffer system is found in the human body?
    6·2 answers
  • What are the types of ions and how are they formed?
    10·1 answer
  • Is it possible for cells to overcome the effects of alkylating agents? how?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!