If a solution has a pOH=12, what is its pH?

Answers

Answer 1

Answer:

2

Explanation:

pH+pOH=14

- Hope that helps! Please let me know if you need further explanation.

Answer 2

Answer:

2

Explanation:

Ph+PoH=14


Related Questions

18.35 mL of an HCN solution were titrated with 35.4mL of a 0.268M NaOH solution to reach the equivalence point. What is the molarity of the HCN solution

Answers

Answer:

0.517

Explanation:

HCN + NaOH → NaCN + H2O [balanced as written]

(35.4 mL) x (0.268 M NaOH) x (1 mol HCN / 1 mol NaOH) / (18.35 mL HCN) = 0.517 M HCN

Answer: 0.517

Explanation:

The glass of a lit 75-watt incandescent bulb is hotter to the touch than the glass of a 25-watt compact fluorescent (CFL) bulb that emits the same amount of light. What could be a reason for this

Answers

Incandescent bulbs have very low efficiency when compared to other types of bulbs, as they only transmit 5% of their given energy as useful light. This also means that 95% of the energy is transferred into stores we make no use of.

CFL bulbs on the other hand are 7-10% efficient and thus need less Watts to supply the same light to that of the aforementioned bulb.

What are 3 stages of the water cycle are

Answers

Evaporation,condensation, and precipitation.

How to make isopropyl alcohol

Answers

Answer:

.It is easily synthesized from the reaction of propylene with sulfuric acid, followed by hydrolysis. Isopropyl alcohol (2-propanol) is made by indirect hydration of propylene (CH2CHCH3).… In some cases the hydration of propylene is carried out in one step, using water and a catalyst at high pressure.

Hope it'll help!

stay safe:)

What is the hydronium ion concentration of a 0.100 M acetic acid solution with Ka = 1.8 × 10-5? The equation for the dissociation of acetic acid is: CH3CO2H(aq) + H2O(l) ⇌ H3O+(aq) + CH3CO2-(aq) What is the hydronium ion concentration of a 0.100 M acetic acid solution with Ka = 1.8 × 10-5? The equation for the dissociation of acetic acid is: CH3CO2H(aq) + H2O(l) ⇌ H3O+(aq) + CH3CO2-(aq) 1.3 × 10-2 M 4.2 × 10-2 M 1.3 × 10-3 M 4.2 × 10-3 M

Answers

Answer:

1.3×10⁻³ M

Explanation:

Hello,

In this case, given the dissociation reaction of acetic acid:

[tex]CH_3CO_2H(aq) + H_2O(l) \rightleftharpoons H_3O^+(aq) + CH_3CO_2^-(aq)[/tex]

We can write the law of mass action for it:

[tex]Ka=\frac{[H_3O^+][CH_3CO_2^-]}{[CH_3CO_2H]}[/tex]

Of course, excluding the water as heterogeneous substances are not included. Then, in terms of the change [tex]x[/tex] due to the dissociation extent, we are able to rewrite it as shown below:

[tex]1.8x10^{-5}=\frac{x*x}{0.100-x}[/tex]

Thus, via the quadratic equation or solve, we obtain the following solutions:

[tex]x_1=-0.00135M\\x_2=0.00133M[/tex]

Obviously, the solution is 0.00133M which match with the hydronium concentration, thus, answer is: 1.3×10⁻³ M in scientific notation.

Regards.

Answer:

1.3×10^-3 M

Explanation:

Step 1:

Data obtained from the question:

Equilibrium constant (Ka) = 1.8×10^-5

Concentration of acetic acid, [CH3COOH] = 0.100 M

Concentration of hydronium ion, [H3O+] =..?

Step 2:

The balanced equation for the reaction.

CH3CO2H(aq) + H2O(l) ⇌ H3O+(aq) + CH3CO2-(aq)

Step 3:

Determination of concentration of hydronium ion, [H3O+].

This can be obtained as follow:

Ka = [H3O+] [CH3CO2-] / [CH3CO2H]

Initial concentration:

[CH3COOH] = 0.100 M

[H3O+] = 0

[CH3CO2-] = 0

During reaction

[CH3COOH] = – y

[H3O+] = +y

[CH3CO2-] = +y

Equilibrium:

[CH3COOH] = 0.1 – y

[H3O+] = y

[CH3CO2-] = y

Ka = [H3O+] [CH3CO2-] / [CH3CO2H]

1.8×10^-5 = y × y / 0.1

Cross multiply

y^2 = 1.8×10^-5 x 0.1

Take the square root of both side

y = √(1.8×10^-5 x 0.1)

y = 1.3×10^-3 M

[H3O+] = y = 1.3×10^-3 M

Therefore, the concentration of the hydronium ion, [H3O+] is 1.3×10^-3 M

It takes 300 N to move a box 10 meters in 10 seconds. How much power is
required?
A. 30,000 W
B. 100 W
C. 3,000 J
D. 300 W
Plz help

Answers

Answer:

Power, P = 300 W

Explanation:

We have,

Force acting on the box to take it is 300 N

It is moved to a distance of 10 m in 10 seconds

It is required to find the power required to move the box. The rate at which work is done is called power required by an object. It can be given by the formula as follows :

[tex]P=\dfrac{W}{t}\\\\P=\dfrac{Fd}{t}\\\\P=\dfrac{300\times 10}{10}\\\\P=300\ W[/tex]

So, the power required is 300 W.


At constant pressure, what generally happens to the solubility of solids and gases when the temperature of a solution is increased?


A. The solubility of solids and gases increases.
B. The solubility of solids and gases decreases.
C. The solubility of solids increases, and the solubility of gases decreases.
D. The solubility of solids decreases, and the solubility of gases increases.

Answers

Answer:

C)

Explanation:

JUST DID IT

Answer:

A D E

Explanation:

just did it

HELP PLEASE ILL GIVE 25 pointsWhich of the following practices could help reduce erosion of water banks? a. buffer strips b. natural fertilizers and pesticides c. decrease in fossil fuel emissions d. all of the above Please select the best answer from the choices provided A B C D

Answers

Answer:

A. Buffer strips

Explanation:

The practice that could help reduce erosion of water banks is buffer strips.

What is erosion?

Erosion is the action of surface processes that removes soil, rock or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited.

One of the practices that could be used to reduce the effect of erosion is buffer strips.

What buffer strips do is slow and filter storm runoff while helping to hold soil in place.

Learn more on buffer strips here; https://brainly.com/question/26872640

If an insufficient amount of liquid unknown had been used, how would this have effected the value of the experimental molar mass

Answers

Answer:

Actual yield reduces the more.

Explanation:

An actual yield of the course of a chemical reaction is the mass of a product actually obtained from the reaction.

In practice you see it and It is usually less than the theoretical yield.

Various reasons may come up to explain this away but here is one:

• incomplete reactions, simply put here some of the reactants do not react to form the product.

The same applies in the question about the actual yield will reduce significantly in molar mass now that insufficient amount of reagent are used.

Which picture shows how the moon from earth when it’s in the position

Answers

Explanation:

This picture shows how the moon from earth when it is in position

4. A taxi ride costs $5 plus .75 cents per mile. If I
ride for 120 miles, how much will be charged?​

Answers

Answer:

$95

Explanation:

.75 x 120 = 90

90+5 = 95

The change in entropy, ΔS∘rxn , is related to the the change in the number of moles of gas molecules, Δngas . Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. 2H2(g)+O2(g) ⟶ 2H2O(l) Δngas= mol The entropy, ΔS∘rxn , increases. decreases. has little or no change.

Answers

Explanation:

Entropy of a reaction ΔS∘rxn is the degree of disoderliness in a system. Gases generally have a higher degree of disorder compared to liquids. Hence for the reaction 2H2(g)+O2(g) ⟶ 2H2O(l), the entropy decreases sice the reactants are in the gaseous state and the products is in the liquid state of matter

A sample of helium gas at room temperature is compressed from 100 cm3 to 20 cm3. Its new pressure is now 30 cm Hg. What was the original pressure of the gas?

Answers

Answer:

6 cm Hg

Explanation:

Boyles Law: P1V1=P2V2

(100 mL)(x)=(20 mL)(30 cm Hg)

x = 6 cm Hg

*Text me at 561-400-5105 for private tutoring if interested: I can do homework, labs, and other assignments :)

Use the graph to determine which is greater, the heat of fusion or the heat of vaporization. Explain how you used the graph to determine that.
(The substance is water)

Answers

Answer:

mdjnibfziedosnninjd.zjcssksskskbsksbivfdlvdxkvfuwhiwhwonsk jsbudwuvsaeigdOhgrauvdslnzarm cxwmvakbxsabxwrifwzpgsdoh

ds

Two identical light bulbs are connected to a battery in a series circuit.
An ammeter is wired into the circuit at measures a current of the
battery to be 0.5 Amps. The two light bulbs are then wired in parallel.
The ammeter shows that the current:

Answers

Answer:

0.10 amps

Explanation:

Other Questions
what kind of polynomial is 2x^4-4x^2 which sentence correctly describes the speakers taste in food Can the teachers in Edmentum see what you inputted (text boxes, multiple choices) in A tutorial assignment? A certain lot consisting of ten items has three defective items and seven nondefective items. How many possible subsets of 2 items can be chosen from this lot?214590 The rights of citizens under the Fourth and Fourteenth Amendments of the Constitution were violated by the US government when it authorized the establishment of - - ? can someone explain the Pythagorean Theorem to me What is the factored form of the polynomial?f2 + 9x +20(x - 4)(x - 5)(x - 2)(x - 10)(x + 4)(x + 5)(x + 2)(x + 10) Provisions of the Texas Constitution, such as those on property and debt, were influenced by ___________.a.the Arizona constitutionb.Mexican and Spanish rulec.the Articles of Confederationd.the French and Indian WarPlease select the best answer from the choices providedABCD if light is removed from this environment the fish will eventually die explain why What is volume of a cylinder with base area 64pi cm and a height equal to twice the radius? Give your answer in terms of pi.512 pi256 pi1024 pi4096 pi If a circle has a diameter of 30 meters, which expression gives its area inscuare meters if u dont know the question its ok You have two samples. Sample 1 has 200 African American people and Sample 2 has 300 Hispanic people. Sample A has 104 individuals with type O and Sample B has 180 individuals with type O. Calculate the following values. What steps did Reagan take in the early 1980s to change the Cold War with the Soviet Union Read the passage.(1) Many American men were drafted during World War II. (2) Many other men volunteered to serve. (3) In fact, so many men entered the armed services that professional baseball experienced a shortage of good players. (4) Philip K. Wrigley had an interesting solution to the problem. (5) He started a new league. (6) It was called the All-American Girls Professional Baseball League (AAGPBL). (7) To find good players, he scouted womens softball clubs. (8) They were very popular at that time. (9) The AAGPBL was a hit. (10) In 1948, the year in which the league reached its high point of popularity, more than a million fans came to watch AAGPBL games. (11) The league produced many fine players, including Mary Bonnie Baker. (12) Dorothy Kamenshek was also a fine player. (13) After World War II ended, the AAGPBL declined in popularity. (14) In 1954, the league was disbanded.Which is the most effective way to combine sentences (11) and (12)?The league produced many fine players, and they include Mary Bonnie Baker and Dorothy Kamenshek.The league produced many fine players, Mary Bonnie Baker and Dorothy Kamenshek also was fine.The league produced many fine players, Mary Bonnie Baker and Dorothy Kamenshek.The league produced many fine players, including Mary Bonnie Baker and Dorothy Kamenshek. 1. In order for a treaty to go into effect, it must be approved by.A the House of RepresentativesB the Secretary of StateC the PresidentD the Senate how many electrons are in an atom of zirconium? what is the central claim of the expert Math question down below can you guys help me please nobody has helped me yet please?What sentence best summarizes the section entitled Coming To America?A There was one group of Chinese, however, that could not be legally kept out of the countrythose with a parent who was a U.S. citizen.B At first, Chinese immigrants were welcomed into the U.S., but as jobs became scarce, the government made it nearly impossible for Chinese to enter the country.C i took out c because the answer is not c.D Since many people who wanted to immigrate to the U.S. did not have a parent who was a citizen, they bought fake papers and became paper sons and paper daughters.