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
MOLES AND MOLAR MASS
shtirl [24]
2.03 kg = 2030 grams

2030g C6H8O7 (1 mol/ 192.124g) = 10.6 mol C6H8O7
5 0
3 years ago
Wind erosion occurs at a faster rate in the desert then in place of the pacific layer of vegetation covering the ground why do y
Fudgin [204]
The wind isn't blocked at all in a desert. Also in deserts the sand is easily picked up by the wind hitting rocks further eroding them
6 0
4 years ago
Read 2 more answers
6th grade math help me plz (don’t take from internet write in ur own words)
lapo4ka [179]

Answer:

An independent variable is changed and used to test what would happen to the dependent if changed. Dependent variables are always staying the same.

Explanation:

4 0
3 years ago
Read 2 more answers
What are the best titles a and b A science b pseudoscience
Mars2501 [29]

i don't really know what you are trying to say here, but what i think you are saying is what sounds like a more impressive job?? in my opinion, pseudoscience sounds more fancy and interesting. Since not a lot of people really knows what that is, it sparks conversation.

8 0
3 years ago
Describe the properties of noble gases. Based on their electronic arrangement, explain whether they can exist alone in nature.
Marizza181 [45]

The properties of noble gases include:

  • They are nonreactive
  • They have hight ionisation energy
  • They have low boiling point
  • They conduct electricity at low pressure.

The noble gases are those elements that makes up the group 18 of the periodic table.

They are non as the inert gases because they are relatively nonreactive.

According to the electronic arrangement, which is according to how the electrons are arranged on their shells, they can exist alone.

The noble gases are nonreactive, have high ionisation energy and low boiling point because in its electronic arrangement, the outer shell is completely full.

Learn more here:

brainly.com/question/19874646

3 0
3 years ago
Other questions:
  • Which of the phases below are NOT able to be compressed
    5·1 answer
  • Which statement concerning elements is true? (1) Different elements must have different numbers of isotopes. (2) Different eleme
    6·1 answer
  • 1. Explain why using renewable resources might be a good choice? Why do you think that?
    11·1 answer
  • What happens to metallic character as you go from left to right on the periodic table?
    13·1 answer
  • Food is pushed into your stomach by
    10·1 answer
  • What volume of carbon dioxide can be produced from the combustion of 2.0 L of methane at STP?
    12·1 answer
  • the organ system that allows for movement of the organism as a whole and for internal movement of food through the digestive sys
    15·1 answer
  • By how much will the water temperature increases if 1046 J of heat energy are added. The specific heat of water is 4.184 J/g • °
    7·1 answer
  • Is a change in color when combining two substances normally a sign of a chemical change or a physical change?
    11·2 answers
  • On the box of a cake mix, the recipe says that it makes 24 cupcakes. When
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!