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
vovikov84 [41]
1 year ago
6

What is the molarity of 985 mL solution with 0.81 moles KF?

Chemistry
1 answer:
Mars2501 [29]1 year ago
8 0

Answer:

0.82 M

Explanation:

You have been given moles and volume (in mL). To find the molarity of the solution, you need to (1) convert mL to L and then (2) plug moles and volume into the molarity formula.

985 mL / 1,000 = 0.985 L

Molarity (M) = moles / volume (L)

Molarity = 0.81 moles / 0.985 L

Molarity = 0.82 M

You might be interested in
Which equation shows how wavelength is related to velocity and frequency?
Nataly_w [17]

Answer:

The correct option is the option;

\lambda = \dfrac{v}{f}

Explanation:

The wavelength of a wave is the distance between two successive crests of the wave

Therefore, the wavelength, λ, is given by the fraction of the velocity, <em>v</em>, of the wave divided by the frequency, <em>f</em>, (the number of cycles that pass through a point) of the wave

Mathematically, we have;

The \ wavelength, \ \lambda = \dfrac{The \ wave \ velocity, \ v}{The \ wave \ frequency, \ f}

\lambda = \dfrac{v}{f}

4 0
3 years ago
For each reaction, identify the element that gets reduced and the element that gets oxidized. 2 AgCl + Zn ⟶ 2 Ag + ZnCl 2 2AgCl+
Mnenie [13.5K]

Answer:

Explanation:

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.

Consider the following reaction:

2AgCl + Zn  → 2Ag + ZnCl₂

In this reaction oxidation state of Zn on left side is 0 while on right side +2 so it gets oxidized and oxidation state of Ag on left side is +1 and on right side 0 so it get reduced.

4NH₃  +  3O₂   →   2N₂ +  6H₂O

In this reaction oxidation state of nitrogen on left side is -3 while on right side 0 so it gets oxidized and oxidation state of oxygen on left side is 0 and on right side -2 so it get reduced.

Fe₂O₃ +  2Al  →   Al₂O₃ +  2Fe

In this reaction oxidation state of iron on left side is +3 while on right side 0 so it gets reduced and oxidation state of Al on left side is 0 and on right side +3 so it get oxidized.

4 0
3 years ago
Some volatile organic compounds can be detected by hydrogeologists in the field or labs because of the ______ emitted from the g
Vadim26 [7]

Volatile organic compounds can be detected by hydrogeologists in the field or labs because of the odor of the vapors emitted from the groundwater and/or soil samples.

<h3>What are volatile substances?</h3>

Volatile substances are substances which can easily vaporize or change to gaseous state.

Volatile substances can either be solids or liquids but are mostly liquids.

Example of volatile substances include ether, petrol, chocolate.

The presence of volatile substances can be detected by the gases they release which may have characteristic odors.

Therefore, volatile organic compounds can be detected by hydrogeologists in the field or labs because of the odor of the vapors emitted from the groundwater and/or soil samples.

Learn more about volatile compounds at: brainly.com/question/25403770

7 0
2 years ago
At sea level, a kilogram weighs approximately:
Marysya12 [62]
The answer would be b, or 2
7 0
3 years ago
Read 2 more answers
Which term refers to the loss of fertile soil from drying out?
dedylja [7]
Desertification.......
5 0
3 years ago
Read 2 more answers
Other questions:
  • Help please just #17
    12·2 answers
  • Please help! ill give medal
    14·1 answer
  • Which will not appear in the equilibrium constant expression for the reaction below?
    10·2 answers
  • Why do the nuclides that are used as radiotracers have short half-lives?
    12·1 answer
  • Use the changes in oxidation numbers to identify which atoms are oxidized and which are reduced in each reaction.
    14·1 answer
  • What is the definition of enthalpy heat of vaporization?
    9·1 answer
  • The thermodynamic law that explains the movement of heat energy during the refrigeration cycle is the first/zeroth/second.
    5·2 answers
  • Sig figs chemistry help CHEMISTRY MATH IDK
    8·1 answer
  • Which element has an atomic number of 6? lithium boron carbon oxygen
    5·2 answers
  • Consider the bonding properties of the three compounds
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!