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
olasank [31]
2 years ago
10

A 19.5-mL sample of Ba(OH)2 is titrated with HCl. If 28.4 mL of 0.394 M HCl is needed to reach the endpoint, what is the concent

ration (M) of the Ba(OH)2 solution
Chemistry
1 answer:
Romashka-Z-Leto [24]2 years ago
5 0

The concentration of Ba(OH)₂ IS 0.287 M.

<h3>What is concentration?</h3>

This is the amount of solute in mol or in gram that will dissolve in 1 dm³ solution.

Equation of the reaction

  • Ba(OH)₂+2HCl→ BaCl₂+2H₂O

Formula:

  • CaVa/CbVb = Na/Nb................ Equation 1

Where:

  • Ca = Concentration of HCl
  • Va = Volume of HCl
  • Cb = Concentration of Ba(OH)₂
  • Vb = Volume of Ba(OH)₂
  • Na = number of moles of HCl
  • Nb = number of moles of Ba(OH)₂

Make Cb the subject of the equation

  • Cb = (CaVaNb)/(NaVb)................... Equation 2

From the equation and the question,

Given:

  • Ca = 0.394 M
  • Va = 28.4 mL
  • Vb = 19.5 mL
  • Na = 2
  • Nb = 1

Substitute these values into equation 2

  • Cb = (0.394×28.4×1)/(2×19.5)
  • Cb = 0.287 M.

Hence, The concentration of Ba(OH)₂ IS 0.287 M.

Learn more about concentration here: brainly.com/question/17206790


You might be interested in
In which location would a free neutron from a decaying U-235 atom be most likely to cause another atom to go split?
Juliette [100K]

Answer:

The correct answer is option B

B. In a sample of enriched uranium

Explanation:

Nuclear fission is a nuclear reaction whereby large nucleus of an atom is break down into smaller parts lighter nuclei or daughter nuclei and release large amount of energy, due to the large amount of energy there are alot of heat released.

During the process large nucleous is bombarded by the neutrons, as a result of this the nucleous becomes disintegrated because it's unstable and their is production of lighter nuclei as well as neutrons and energy.

When the U -235 particles are compacted together there result a high energy neutron which can bombard another Uranium - 235 molecule in the region. uranium is enriched with more of the fissile uranium isotope, then when it is enriched it can be used to make atomic reactors and explosives like bombs.

8 0
3 years ago
What compound is always produced when an acid and a base are combined?
denis-greek [22]
Salt and water are formed

H₃PO₄ + 3KOH = K₃PO₄ + 3H₂O
CH₃COOH + NaOH = CH₃COONa + H₂O
5 0
3 years ago
Which is the formula mass of (NH4)2SO4?
lidiya [134]

Answer:

132.17 amu

ok..... ljkdf

4 0
3 years ago
How many grams of C3H8 would be needed to produce 6.39 grams of CO2?
just olya [345]

Answer:

2.13g

Explanation:

Atomic mass of CO2 =  12 + 32 = 44g/Mol

Atomic mass of C3H8 = 36 + 8 = 44g/Mol

Reaction

C3H8 + 5O2 --> 3CO2 + 4H2O

3CO2 = 6.39g

Required C3H8 = (6.39/(44 x 3)) x 44 = 2.13g  

8 0
3 years ago
What kind of mutations would X, Y, and Z represent?
labwork [276]
X- Deletion
Y- Substitution
Z-Insertion
4 0
3 years ago
Other questions:
  • how many oxygen atoms are there in six dinitrogen monoxide molecules? express your answer as an integer
    9·1 answer
  • Why don't the oceans simply reabsorb the water that evaporates?
    7·1 answer
  • Describe three skills people use to conduct scientific investigations
    12·1 answer
  • What situation would not encourage competition ?
    8·1 answer
  • At the beginning of the experiment, the aspirin pill contains 325 mg of acetylsalicylic acid and weighs 400 mg. at the end of ex
    8·1 answer
  • Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
    13·1 answer
  • On approximately what day in 28-days cycle is the egg released from the ovary
    14·1 answer
  • Calculate the wavelength of radiation with a frequency of 8.0 x 10^14 Hz.
    5·1 answer
  • Item 3
    6·1 answer
  • What is a chemical reaction<br>thnx a lot​<br><br>hlo ◇3◇
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!