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
mestny [16]
1 year ago
9

Write both answers to at least two decimal places. Calculate the pH of a 0.160 M solution of KOH.Part 2 (1 point) Calculate the

pOH of a 0.160 M solution of KOH.
Chemistry
1 answer:
Evgen [1.6K]1 year ago
7 0

To calculate the pH of a solution, we first need to find the concentration of hydronium ions in the solution. Since KOH is a strong base, it dissociates completely in water to produce hydroxide ions (OH-) and potassium ions (K+).

The concentration of hydronium ions in a solution of KOH can be calculated using the concentration of hydroxide ions and the equilibrium constant for water, which is equal to 1.00 x 10^-14 at 25 degrees Celsius.

The concentration of hydroxide ions in a 0.160 M solution of KOH is equal to the concentration of KOH, which is 0.160 M. The concentration of hydronium ions in the solution can be calculated using the equation below:

[H3O+] = (1.00 x 10^-14) / [OH-]

Substituting the concentration of hydroxide ions into the equation above, we get:

[H3O+] = (1.00 x 10^-14) / (0.160 M) = 6.25 x 10^-13 M

To calculate the pH of the solution, we need to take the negative logarithm of the concentration of hydronium ions. This can be done using the equation below:

pH = -log([H3O+])

Substituting the concentration of hydronium ions into the equation above, we get:

pH = -log(6.25 x 10^-13) = 12.20

The pH of a 0.160 M solution of KOH is 12.20.

To calculate the pOH of a solution, we first need to find the concentration of hydroxide ions in the solution. Since we already calculated this value above, we can simply use the concentration of hydroxide ions we found earlier: 0.160 M.

To calculate the pOH of the solution, we need to take the negative logarithm of the concentration of hydroxide ions. This can be done using the equation below:

pOH = -log([OH-])

Substituting the concentration of hydroxide ions into the equation above, we get:

pOH = -log(0.160 M) = 1.80

The pOH of a 0.160 M solution of KOH is 1.80.

Learn more about pH:
brainly.com/question/28864035

#SPJ4

You might be interested in
Which of the following best describes alternating current? ________
Natali [406]
B. A current in charges change direction

Explanation: an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
3 0
3 years ago
Read 2 more answers
1. A container holds four times as many moles of CO2 as O2. If the total pressure in the container is 20. atm,
Hitman42 [59]

Answer:

Partial pressure of CO2 = 16 atm

Explanation:

Total number of moles of gases = 4+1 = 5 moles

Mole fraction of CO2 = 4/5

Partial pressure of CO2 = mole fraction of CO2 × total pressure

Partial pressure of CO2 = (4/5) × 20

Partial pressure of CO2 = 16 atm

7 0
3 years ago
What way do S waves move
BlackZzzverrR [31]
S waves shake the ground in a shearing, or crosswise, motion that is perpendicular to the direction of travel. These are the shake waves that move the ground up and down or from side to side.
4 0
1 year ago
Three separate 3.5g blocks of al, cu, and fe at 25°c each absorb 0.505 kj of heat. which block reaches the highest temperature?
77julia77 [94]

The energy can be shown as:

Q = ms dT

Whereas, m is the mass of block

s is specific heat

dT is change in temperature.

Copper block having the lowest specific heat and thus having the higher change in temperature and therefore having the higher final temperature.

8 0
3 years ago
Non-examples of air pressure
Anuta_ua [19.1K]
No pressure







Ahhhhhh (filling character req)
8 0
3 years ago
Other questions:
  • 8.41 x 10 to the -7 grams to microgram
    14·1 answer
  • How many kilojoules are associated with the formation of 2 moles of HBr(g)
    9·2 answers
  • Chemists use activity series to determine whether which type of reaction will occur?
    7·1 answer
  • Please help me . I will mark brainly
    11·1 answer
  • Who created the "law of triads"?
    5·2 answers
  • A scientist heats a sealed flexible container full of helium gas. What will most likely happen to the container as the gas absor
    12·2 answers
  • What is the net force on an object that has a mass of 10g and the acceleration of 100 m/s2?
    7·1 answer
  • Which of the following is an example of a chemical change?
    6·2 answers
  • All acid base indicators ____
    9·1 answer
  • Your town is experiencing a drought in which the weather has been hot and dry for weeks. Infer which type of pressure system is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!