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
miskamm [114]
1 year ago
9

PROBLEMS

Chemistry
1 answer:
AlekseyPX1 year ago
7 0

Answer:

1.) 0.1 M

2.) 0.2 M

3.) 1 M

4.) Solution #3 is the most concentrated because it has the highest molarity. This solution has the largest solute to solvent ratio. The more solvent there is, the lower the concentration and molarity.

Explanation:

To find the molarity, you need to (1) convert grams NaOH to moles (via molar mass from periodic table) and then (2) calculate the molarity (via the molarity equation). All of the answers should have 1 sig fig to match the given values.

Molar Mass (NaOH): 22.99 g/mol + 16.00 g/mol + 1.008 g/mol

Molar Mass (NaOH): 39.998 g/mol

4 grams NaOH           1 mole
----------------------  x  ------------------  = 0.1 moles NaOH
                                 39.998 g

1.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (1 L)

Molarity = 0.1 M

2.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (0.5 L)

Molarity = 0.2 M

3.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (0.1 L)

Molarity = 1 M

You might be interested in
Is air a conductor or insulator
maksim [4K]
Insulator! I hope this helps! Pls mark mine the brainliest;)
6 0
3 years ago
Read 2 more answers
Alex saw a rusty old car in an abandoned lot. Because he had recently read about chemical reactions, he began to wonder how the
Mice21 [21]

The answere is A .......


8 0
3 years ago
Can a electron be found in an exact spot within a atom
goldenfox [79]

Answer:

Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. There is usually a higher probability of finding an electron closer to to the nucleus of an atom.

Explanation:

5 0
3 years ago
Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom? A
Tju [1.3M]

Answer:

Electron

Explanation:

The answer would be the electron because it is constantly moving so its location cannot be accurately determined

3 0
3 years ago
Read 2 more answers
Which of the following are parts of the excretory system? *
Kay [80]

Answer:

kidney, bladder, rectum, urethera

Explanation:

5 0
3 years ago
Other questions:
  • Given that the electronic configuration of an element X is 1s2 2s2 2p6 3s2 3p4,it can be deduced that X:
    6·1 answer
  • A student wants to make 100 mL of 0.30 M HCl. How many milliliters of 6.0 M HCl is needed to make this solution
    7·1 answer
  • What is the sum of 2.099 g and 0.05681 g? ____g
    10·2 answers
  • If glucose is the sole energy source, what fraction of the carbon dioxide exhaled by animals is generated only by the reactions
    12·2 answers
  • A solution has a pH of 2.4. What happens to the solution if the hydronium ion concentration is increased?
    10·2 answers
  • Hydroxyl, ether, carbonyl, or amine?
    8·1 answer
  • A saturated solution of copper (II) hydroxide is prepared in a beaker by adding the solid to water and stirring. When the soluti
    6·1 answer
  • Is a hydrogel a smart polymer/stimuli-responsive polmer?​
    6·2 answers
  • How is oxygen within the hydrosphere?
    12·2 answers
  • How many moles of LiCl will I have if I start off with .425 moles of CaC12?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!