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
Tpy6a [65]
3 years ago
5

What does Raoult's law state?

Chemistry
2 answers:
Mandarinka [93]3 years ago
4 0
Correct Answer is A: <span> The vapor pressure of a pure solvent is higher than that of a solution containing that solvent.

Reason
According to Raoult's Law states that v</span><span>apor pressure of each component in the solution is equal to the vapor pressure of the pure component multiplied by its mole fraction. It is mathematically expressed as
P = X </span>P^{0}
where, P = vapor pressure of solution
X = mole fraction of solute
P^{0} [/tex] = vapor pressure of pure component

Here X is always less than one (in solutions)

∴ P < P^{0} [/tex]

natali 33 [55]3 years ago
4 0
Raoult's law states That the vapor pressure of a pure solvent is higher than that of a solution containing that solvent. This is <span>a </span>law<span> of thermodynamics established by French chemist François-Marie </span>Raoultin in 1887. This shows that <span> partial vapor pressure  is equal to the vapour pressure.</span>
You might be interested in
Please help
lora16 [44]
Find the molar mass of CH3 and divide that by 45.0. That should give a whole number and then mult that whole number by CH3 to find molecular formula to get like ( incorrect ex: C2H6) which is mult by 2
6 0
2 years ago
Given that w for water is 2. 4×10−14 m^2 at 37 °C. Calculate the ph of a neutral aqueous solution at 37 °c, which is the normal
alexgriva [62]

The pH of a neutral aqueous solution at 37°C is 6.8.

<h3>What is Kw? </h3>

Kw is defined as the dissociation, which is also known as self-ionization, constant of water. this is an equilibrium constant, and its expression is:

Kw = [OH⁻] . [H₃O⁺]

Neutral pH determines that the concentrations of OH⁻ and H₃O⁺ are equal.

<h3>Calculation</h3>

Let us suppose concentration of OH and H₃O⁺ is x, to calculate it:

Kw =[OH⁻] . [H₃O⁺] = x²

x² = 2.4 × 10⁻¹⁴ M²

x = 1.5919 × 10⁻⁷ M

Hence, the concentration of OH and H₃O⁺ (x) = [H₃O⁺] = [OH⁻] = 1.5919×10⁻⁷ M

pH = -log[H₃O⁺] = -log( 1.5919×10⁻⁷ M)

pH = 6.8

Thus, we find that the pH of a neutral aqueous solution at 37 °c (which is the normal human body temperature) is 6.8.

learn more about pH:

brainly.com/question/9529394

#SPJ4

3 0
1 year ago
How isa molecule of mercury different from a molocue of water
Genrish500 [490]
<h2>Answer:</h2>

The density of mercury molecule is higher than water.

<h3>Explanation:</h3>

Density is defined as mass per unit volume.In other words, density is the amount of matter within a given amount of space. water has the density of 1.0 gram per milliliter whereas the mercury has a density of 13.6 grams per centimeter squared.

One reason for the differences in density between mercury and water is that the atomic mass of mercury is 200.59 grams per mole. The atomic mass of water is 18.0 grams per mole. This is because mercury has a larger nucleus than hydrogen or water.

Additionally, there are strong inter-molecular forces (hydrogen bonds) between water molecules. hydrogen molecules do not stack upon one another as nicely as mercury atoms. Thus, there is additional empty spaces between the water molecules leading to its lower mass per volume(density)

8 0
3 years ago
a physical property can be observed while the substance remains the same in its chemical composition. true false
sweet [91]

While the material retains its chemical makeup, the physical property may be examined. The given statement is true.

The matter can undergo variations in physical or chemical properties. The physical changes of a matter occur when the matter undergoes changes in its physical properties like changes in the state of matter, weight, color, etc.

But the chemical composition of matter will remain constant if it undergoes a physical change. Whereas in chemical change, the matter undergoes a change in the composition of the substance but there will be no change in the physical properties.

Hence, The assertion is correct in that physical properties can be seen while the substance's chemical makeup stays constant.

To learn more about physical and chemical change, visit: brainly.com/question/21509240

#SPJ4

8 0
1 year ago
Hydrogen gas explosive within range of 4%-75% v/v. Assuming that each student in your class produces 6 L of H2 and that the lab
SpyIntel [72]
To determine whether the amount of H2 in the lab is dangerous, we first need to know how much hydrogen gas is present in the room in units of percent by volume. For this particular problem, we cannot exactly determine since we do not know the total volume of the room. Hope this answers the question.
3 0
3 years ago
Other questions:
  • An udentified substance, Y, was thought to be one of the following three compounds.
    15·1 answer
  • How do you know if a reaction is exothermic? Enter your answer in the space provided
    9·1 answer
  • What is the relationship between air resistance and surface area?
    13·1 answer
  • Has boiling vents in the datk door
    9·1 answer
  • What is the ph of a solution of 0.450 m kh2po4, potassium dihydrogen phosphate?
    10·1 answer
  • Now look at the volcano map what type of boundary tends to give rise to volcanic activity
    6·1 answer
  • The diagram shows an electric motor.
    13·2 answers
  • Which layer of the soil profile would be affected the most by weathering and erosion?
    10·1 answer
  • 4. How can you calculate the solubility of a gas in a liquid under different<br> pressures
    10·1 answer
  • What happens to the level of hydronium ions in a solution when the number of hydroxide ions decrease
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!