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
jeka57 [31]
2 years ago
13

The density of a 45.0 mass % solution of ethanol (C2H5OH) in water is 0.873 g/mL. What is the molarity of the solution?

Chemistry
1 answer:
antoniya [11.8K]2 years ago
6 0

Answer : The concentration of solution is, 8.53 M.

Explanation :

As we are given, 45.0 mass % solution of ethanol in water that means 45.0 g of ethanol present in 100 g of solution.

First we have to calculate the volume of solution.

\text{Volume of solution}=\frac{\text{Mass of solution}}{\text{Density of solution}}

\text{Volume of solution}=\frac{100g}{0.873g/mL}=114.5mL

Now we have to calculate the molarity of solution.

Mass of C_2H_5OH = 45.0 g

Volume of solution = 114.5 mL

Molar mass of C_2H_5OH = 46.07 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

\text{Molarity}=\frac{\text{Mass of }C_2H_5OH\times 1000}{\text{Molar mass of }C_2H_5OH\times \text{Volume of solution (in mL)}}

Now put all the given values in this formula, we get:

\text{Molarity}=\frac{45.0g\times 1000}{46.07g/mole\times 114.5mL}=8.53mole/L=8.53M

Therefore, the concentration of solution is, 8.53 M.

You might be interested in
Which, if any, of these mirrors can produce a real image?
sergij07 [2.7K]
Real and virtual images.<span> In a dark room one can form an image of a candle flame on a white screen by letting the rays from the candle pass through a small opening. See Fig. 1. This idea is used in the pinhole camera. The pinhole camera is simply a light-proof box with a tiny pinhole in the front and photographic film stretched across the rear wall. See Fig. 2. One uncovers the pinhole for a minute or so, then covers it back up, to take a picture. If it is held steady, it can take a good picture. If one replaces the pinhole with a lens, the intensity of the incident light is increased and a sharp image can be recorded in a fraction of a second. The image formed by a pinhole or a lens is formed by incident rays of light on a surface and stands in contrast to another kind of image — the kind of image formed by a mirror. The image formed by a mirror is not real, it is an illusion formed by the way the light reflects off the mirror. The image seen in a mirror looks three dimensional and real but we know there is nothing where the image appears to be. An image such as that formed by a pinhole or lens is called a </span>real image<span>. An image such as that formed by a mirror is called a </span>virtual<span> image</span>
4 0
3 years ago
Read 2 more answers
Which one of the following compounds is diiodine heptoxide
MaRussiya [10]

Answer:

Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning "two

Explanation:

3 0
3 years ago
How many electrons can be held in a sublevel l = 3?
muminat
There can be two electrons in one orbital maximum. The s sublevel has just one orbital, so can contain 2 electrons max. The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max.

Hope this helped
Have a nice day :)
4 0
3 years ago
Read 2 more answers
How do scientist use radioactive decay to date fossils and artifacts
zhuklara [117]
Scientists use radioactive decay to date fossils and artifacts through a process called "carbon dating," which measures the amount of carbon still left in a dead object. The less carbon that exists, the longer that animal or plant as been dead. 
3 0
3 years ago
The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02x10 atoms in 1 mol.
k0ka [10]
Hey, what's the question asking you to solve for?
8 0
3 years ago
Other questions:
  • A (n) blank is a movement or trembling of the ground that is caused by a sudden release of energy when rocks move along a fault.
    10·1 answer
  • Suppose you want to do an experiment to hear how three different objects with sound when dropped from the same distance. You dro
    10·1 answer
  • Determining the Locations of Subatomic
    7·1 answer
  • The ksp of lead(ii) hydroxide, pb(oh)2, is 1.43 × 10-20. calculate the solubility of this compound in g/l.
    15·1 answer
  • If the percentage ionization of an 0.10 M acid is 3.0%, what is its acid dissociation constant?
    14·1 answer
  • A swimming pool has the dimensions of 10m, 5m, and 1m. what is the volume?
    15·2 answers
  • Which element is a metalloid? Check all that apply. selenium (Se) polonium (Po) silicon (Si) iodine (I) tin (Sn) antimony (Sb) p
    8·2 answers
  • Maximum number of possible structural of C7H9N
    12·1 answer
  • I answered a question correctly and someone deleted my answer without giving me any explanation. I don't know why someone would
    14·1 answer
  • Limiting reactants don’t know how to do
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!