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
Ainat [17]
3 years ago
9

Calculate the molarity 20ml of 3.5 m kci in to a final volume of 100 ml​

Chemistry
1 answer:
satela [25.4K]3 years ago
3 0

Answer:

Molarity =  0.7 M

Explanation:

Given data:

Volume of KCl = 20 mL ( 0.02 L)

Molarity = 3.5 M

Final volume = 100 mL (0.1 L)

Molarity in 100 mL = ?

Solution:

Molarity = number of moles of solute / volume in litter.

First of all we will determine the number of moles of KCl available.

Number of moles = molarity × volume in litter

Number of moles = 3.5 M × 0.02 L

Number of moles = 0.07 mol

Molarity in 100 mL.

Molarity = number of moles / volume in litter

Molarity =  0.07 mol /0.1 L

Molarity =  0.7 M

You might be interested in
What is 2(NH,4)Cr,2 O,7
Vitek1552 [10]

oxidation-reduction.


4 0
3 years ago
What part of an atom has no relative mass
Debora [2.8K]

Answer: Electrons

Explanation:

Most of an atoms' mass comes from the protons and neutrons that make up its nucleus. Electrons have the least mass of an atom's particles.

4 0
3 years ago
Read 2 more answers
Why might having mud in an ecosystem be important?
Aloiza [94]

An insect needs mud wallows to breed; that insect pollinates several flowers in that ecosystem.

3 0
3 years ago
hi, help me please with both number 4 and 5, please be sure of your answer, first to answer gets brainliest!​
Evgesh-ka [11]

Answer:

4. mutualism

5. commensalism

Explanation:

4. mutualism (they benefit off each other)

5. commensalism (the whale is unaffected)

8 0
3 years ago
What does your data indicate about the optimum ph level for this enzyme-catalyzed reaction?
mestny [16]
At an optimum pH of 7.0, there are more molecules per minute in all amounts of substrate thus this pH is ideal for maximum growth. 5. Enzymes function most efficiently at the temperature of a typical cell, which is 37 degrees Celsius. Increases or decreases in temperature can significantly lower the reaction rate.
3 0
3 years ago
Other questions:
  • Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". The acidity of li
    13·1 answer
  • The diagram below shows some subatomic particles.
    5·2 answers
  • The study of how humans impact the environment is<br> ?
    12·2 answers
  • What is the internal energy of a system? What is the variable for internal energy?
    10·1 answer
  • How would decreasing the volume of the reaction vessel affect each of the following equilibria?
    11·1 answer
  • What happens during carbon fixation during photosynthesis?
    5·1 answer
  • So3+H2o→H2 So4<br>identify the nature of this reaction<br>helpp please i'm such a failure​
    8·1 answer
  • It is 12:00 and you just heard that local officials are tracking a violent storm heading westward, directly for your town and sc
    7·2 answers
  • If you lick boo boo and eat it, will you get sick?
    10·1 answer
  • If different masses of water are heated to the same temperature, which sample will absorb more energy? Base your argument on the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!