answer this correctly, only sincere answers please. I really need help. I will do all I can to make someone answer this. Thanks! ASAP


Explain the relationship between pH, POH, hydronium concentration and hydroxide concentration and be prepared to complete the chart below based on the provided knowns.

Complete the chart below based on the provided knowns.



H+ ______x_______

OH - 1 x 10^-11______

pH 3_____________

POH _____y_______

Answers

Answer 1

Answer:

See Explanation

Explanation:

Let us recall that;

[H^+] [OH^-] = 1 * 10^-14

Where;

[OH^-] = 1 x 10^-11

Then;

[H^+] = 1 * 10^-14/1 x 10^-11

[H^+] = 1 * 10^-3

pH = -log [H^+]

pH = -log(1 * 10^-3)

pH = 3

Also;

pH + pOH = 14

pOH = 14 - pH

pOH = 14 -3

pOH = 11


Related Questions

A solution has a pH of 10.
What is the concentration of hydrogen ions?

Answers

[H+] = 10−pH, by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of "Solution A" is, [H+] = 10−5.6 ≈ 0.0000025 = 2.51 × 10−6 M.

What volume, in milliliters,

Answers

Answer:

25.4

Explanation:

PLZ mark me brainlist

Write the balanced half equation of iron 2 and permanganate in a solution of acid. Show all of your work.

Answers

Answer:

5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

Explanation:

Fe⁺² + MnO₄⁻ +  H⁺ => Mn⁺² + Fe⁺³ +  H₂O

5(Fe⁺² => Fe⁺³ + 1e⁻)      =>                        5Fe⁺² => 5Fe⁺³ + 5e⁻

MnO₄⁻ + 5e⁻ => Mn⁺²    =>   MnO₄⁻ + 8H⁺ + 5e⁻ => Mn⁺² + 4H₂O

                                      =>  5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

For the reaction: 2H2 + O2 → 2H2O, how many grams of water are produced from

6.00 moles of H2?

Answers

Answer:

108 g

Explanation:

2H₂ + O₂ → 2H₂O

First we convert 6.00 moles of H₂ into moles of H₂O, using the stoichiometric coefficients of the reaction:

6.00 mol H₂ * [tex]\frac{2molH_2O}{2molH_2}[/tex] = 6.00 mol H₂O

Then we can convert 6.00 moles of H₂O into grams, using the molar mass of water:

6.00 mol H₂O * 18 g/mol = 108 g

The answer is 108 grams of water.

250 mL of water is collected during a combustion reaction. The temperature in the
room is 23 °C and the pressure is 105 kPa. How many moles of water was collected?

Answers

Answer:

0.011 moles

Explanation:

Applying,

PV = nRT.................... Equation 1

Where P = Pressure, V = Volume, n = number of moles, R = Molar gas constant, T = Temperature.

Make n the subject of the equation

n = PV/RT.................. Equation 2

From the question,

Given: P = 105 kPa = (105×0.00986923) = 1.036 atm, V = 250 mL = 0.25 L, T = 23 °C = (273+23) = 296 °C

Constant: R = 0.082 atm.dm³/K.mol

Substitute these values into equation 2

n = (1.036×0.25)/(0.082×296)

n = 0.011 moles


How many molecules are in 4.67 mols of H2O

Answers

Answer:

2.81 × 10²⁴ molecules

Explanation:

The number of molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

We have

N = 4.67 × 6.02 × 10²³

We have the final answer as

2.81 × 10²⁴ molecules

Hope this helps you

if a material conducts heat easily, its a good _____.
It has to be a 18 letter word

Answers

Answer:

a thermal conductor

Explanation:

thats what its called

Which two come together to form an ionic bond?

a. a positive cation and a ngetaive cation
b. a positive cation and a negative anion
c. a positive cation and a positive anion
d. a positive anion and a negative anion

Answers

[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]

b. a positive cation and a negative anion

✏ Anions are negative in nature while cations are positive in nature. Together they come together by an attractive electrostatic force to form an ionic bond.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]

Select the element(s) that will have ONE unpaired electron in the p orbital.

Ca

N

B

Ar

Br

Answers

Answer: The element B will have ONE unpaired electron in the p orbital.

Explanation:

The electronic configuration of each given element is as follows.

Atomic number of calcium (Ca) is 20.

Ca: [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2}[/tex]

Atomic number of nitrogen (N) is 7.

N: [tex]1s^{2} 2s^{2} 2p^{3}[/tex]

Atomic number of boron (B) is 5.

B: [tex]1s^{2} 2s^{2} 2p^{1}[/tex]

Atomic number of argon (Ar) is 18.

Ar: [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex]

Atomic number of bromine (Br) is 35.

Br: [tex][Ar] 4s^{2} 3d^{10} 4p^{5}[/tex]

Therefore, boron is the only element that have one unpaired electron in the p-orbital.

Thus, we can conclude that element B will have ONE unpaired electron in the p orbital.

In each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is likely to be polar or not. If the bond is likely to be polar, write down the chemical symbol for the atom which will have more negative charge. The highlighted bond is polar and the more negative atom is The highlighted bond is nonpolar. The highlighted bond is polar and the more negative atom is The highlighted bond is nonpolar. The highlighted bond is polar and the more negative atom is The highlighted bond is nonpolar.

Answers

The question is incomplete, the complete question is shown in the image attached to this answer

Answer:

See Explanation

Explanation:

I want us to bear something in mind. A compound is polar when there is a considerable difference in electronegativity between two bonding atoms in the molecule.

The implication of this is, the shared electron pair of the bond will be closer to the atom of greater electronegativity than the atom of lesser electronegativity thereby creating a dipole in the molecule.

Let us consider each of the compounds;

For Cl-F, the highlighted bond is polar and F is the more electronegative atom

For H-Br, the highlighted bond is polar and Br is the more electronegative atom

For N≡N, the highlighted bond is nonpolar since it is a homonuclear diatomic molecule.

What is the name of Earth's home galaxy?
The Milky Way
The Elliptical
The Spiral Way
The Irregular
100 points

Answers

Answer:

The Milky Way

Explanation:

Answer:

Your answer is the Milky WAy!

Brainliest?

A galvanic cell generates a cell potential of 0.32V when operated under standard conditions according to the reaction above. Which conditions are needed to construct a similar cell that generates the lowest cell potential?

Answers

The complete question is shown in the image attached to this answer.

Answer:

C

Explanation:

Let us quickly remember that the EMF of a cell under non standard conditions in given by the Nernst equation.

This equation states that;

E = E°cell - 0.592/n log Q

Where

E = EMF under non standard conditions

E°cell= standard EMF of the cell

n = number of electrons transferred

Q = reaction quotient

If the reaction quotient is greater than 1 then cell potential is less than the standard cell potential.

The cell that generates the lowest cell potential is the cell depicted in option C because Q has the greatest positive value(Q<1).

The cell potential is the redox potential that measures the acquired to lost electrons at the electrodes. The lowest cell potential is generated by cell C with 0.5 M.

What is EMF?

EMF is the electromotive force that is the total of the electric potential difference produced at the half cells of the galvanic cell (electrochemical cell).  

EMF of the cell is given as,

[tex]\rm E = \rm E^{\circ} - \dfrac{0.592}{n}\; log Q[/tex]

Here, E is the electromotive force, [tex]\rm E^{\circ}[/tex] is the standard EMF, n is the number of the transferred electrons, and Q is the reaction quotient.

When the reaction quotient (Q) is greater than 1 then, cell potential will be less than standard cell potential.

Therefore, cell C with 0.5 M and Q > 1 is a similar cell.

Learn more about galvanic cells here:

https://brainly.com/question/23819073

What is the relationship between temperature and volume?

Answers

Answer:

Charles's law states that the volume of a given amount of gas is directly proportional to its temperature on the kelvin scale when the pressure is held constant

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles's law). The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law)

Explanation:

~Hope this helps

How many grams of NaCI are dissolved in a 500.0 mL of a 0.04M solution of NaCI?

A: 0.05 g
B: 1.17 g
C: 1.46 g
D: 2.92 g

Answers

Answer:

B 1.17

Explanation:

There is .02 mols of nacl in a .4M solution

so you multiply by the molar weight of NaCl (58.44)

Why do different parts of the world have such different animals?

Answers

Answer:

a

Explanation:

Animals only adapt to certain climates.

Given the following information: SO2(g) + 12 O2(g) = SO3(g) Kp = 2.5E-2 What is the Kp value for the following reaction: 2 SO2(g) + O2(g) = 2 SO3(g)

Answers

Answer:

K = 6.25x10⁻⁴

Explanation:

Based on the reaction:

SO₂ + 1/2 O₂ ⇄ SO₃ Kp = 2.5x10⁻²

We can find the Kp of a similar reaction using Hess's law where the sum of 2 reactions a and b produce a K that is:

K = Ka*Kb

The sum of twice the reaction of the problem:

SO₂ + 1/2 O₂ ⇄ SO₃

+ SO₂ + 1/2 O₂ ⇄ SO₃

2SO₂ + O₂ ⇄ 2SO₃

Where K must be:

K = Kp*Kp = Kp²

K = (2.5x10⁻²)²

K = 6.25x10⁻⁴

what is a recessive allele in a genotype is represented by pleaseee helpp

Answers

If you have Rr or RR it’s the lowercase letter. If you have a dominant trait and a recessive trait the recessive trait is hidden because the dominant trait kind of takes over. But if you have let’s say rr then the trait is going to be recessive. You can figure out recessive and dominant by using a punnet square :)

A solution has a [OH−] of 1 x 10^−11 M. What is the [H3O+] of the solution?

Answers

Explanation:

Ionic product of water, Kw

[tex]Kw = [OH {}^{ - } ][H _{3} O {}^{ + } ] \\ 1.0 \times {10}^{ - 14} = (1 \times {10}^{ - 11} )[H _{3} O {}^{ + } ] \\ [H _{3} O {}^{ + } ] = \frac{(1.0 \times {10}^{ - 14}) }{(1 \times 10 {}^{ - 11}) } \\ ][H _{3} O {}^{ + } ] = 0.001 \: M[/tex]

In the covalent compound CH3, the Greek prefix used to represent the anion is Answer here​

Answers

Answer:

Tri.

Explanation:

''Tri'' is the Greek prefix used to represent the CH3 because there are three hydrogen atoms to form the covalent compound so in Greek method ''Tri'' is used for three. In Greek system, there are certain names for prefixes such as ''di'' is used for two, ''tri'' is used for three, ''tetra'' is used for four etc. This method only provides information about the number of atoms that form the covalent compound.

In the graphic,
X represents which element?
40
20

Answers

Answer:Ca

Explanation:

Calculate the molarity of a solution that contains 5 mol of Li2O in 2.35 L of solution.

Answers

Answer:

2.13 M

Explanation:

To solve this problem we need to keep in mind the definition of molarity:

Molarity = moles / liters

As the problem gives us both the number of moles and the volume of solution, we can proceed to calculate the molarity:

Molarity = 5 mol / 2.35 LMolarity = 2.13 M

The answer is 2.13 M.

How many grams of potassium carbonate are needed to make 200 mL of a 2.5 M solution?


If I want to use 78 grams of isoproponol (C3H8O) in a reaction, how many mL do I need of a 3.4 M solution?


I have two solutions. In the first solution, 1.0 moles of sodium chloride is dissolved to make 1.0 liters of solution. In the second one, 1.0 moles of sodium chloride is added to 1.0 liters of water. Is the molarity of each solution the same? Explain your answer

Please help, thanks!

Answers

Answer:

The molecular formula for Potassium Carbonate is K2CO3. The SI base unit for amount of substance is the mole. 1 grams Potassium Carbonate is equal to 0.0072356020563581 mole. Note that rounding errors may occur, so always check the results.

Explanation:

The molecular formula for Potassium Carbonate is K2CO3. The SI base unit for amount of substance is the mole. 1 grams Potassium Carbonate is equal to 0.0072356020563581 mole.

How many moles of CH2 must react in order to produce 50 moles

Answers

20 should be the answer

Why Does the Moon Appear in the Daytime? ...
How Much Does the Sky Weigh? ...
How Much Does the Earth Weigh? ...
How Do Airplanes Stay in the Air? ...
Why Is Water Wet? ...
What Makes a Rainbow? ...
Why Don't Birds Get Electrocuted When They Land on Electric Wires?

Answers

The moon appears in the day time because the sun reflects off of it
The sky weighs 12,107,415,382,493,169,564 pounds
The earth weighs 1.317x10^24 pounds
Airplanes stay in the air because air going around the wings and the jets give it lift
Water is wet because it is touching another liquid (water)
Rainbows are created by light passing through water droplets and slowing down
Birds are tiny gods.
The other person sounds brainliest. Mark them brainliest

N2O3 → N2 + O2
Name the reactants in this reaction.
Name the products in this reaction.

Answers

[tex]\text{N}_{2}\text{O}_{3}=\text{nitrogen trioxide}\\\text{N}_{2}=\text{nitrogen}\\\text{O}_{2}=\text{oxygen}[/tex]

convert 32 degrees celsius to kelvin

Answers

Answer:

305.15

Explanation:

32 celsius converted to kelvin is 305.15 kelvin

Formula

32°C + 273.15 = 305.15K

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