C₂H5OH +202 → 2CO2 + 3H₂O + 1367 kJ
What is the ratio between ethanol
and energy of the reaction?
? mole C₂H5OH
kJ
Fill in the green blank.

From the Electron Configuration of Mystery Elements:

Mystery element A has an electron configuration of 2-8-18-7, which means it has 7 valence electrons. Based on this, it would be reactive because it only needs one more electron to complete its outermost shell of eight electrons, which is the stable configuration of noble gases. This is supported by the PPT slide evidence, which states that elements with fewer than 4 or more than 7 valence electrons tend to be reactive.

Mystery element D has an electron configuration of 2-8-8-2, which means it has 2 valence electrons. Based on this, it would be reactive because it only needs to lose or gain two electrons to complete its outermost shell. This is also supported by the PPT slide evidence, which states that elements with 1-3 valence electrons tend to lose electrons to form positive ions, while elements with 5-7 valence electrons tend to gain electrons to form negative ions. Therefore, mystery element D could either form a positive ion by losing two electrons or form a negative ion by gaining six electrons.

Find out more on Valence Electrons here: https://brainly.com/question/371590

#SPJ1

The DART system and sensors have several advantages over seismometers and coastal tide gauges in measuring tsunami-related events. Three advantages are Real-time measurement, Wide coverage and High accuracy.

Real-time measurement: The DART system provides real-time measurements of the height and speed of waves in the open ocean, whereas seismometers and coastal tide gauges only measure the arrival time and amplitude of waves at a specific location. Real-time measurements allow for more accurate and timely predictions of tsunami-related events, enabling earlier warning and faster response times.

Wide coverage: The DART system covers a larger area than seismometers and coastal tide gauges, allowing for more comprehensive monitoring of oceanic waves. The wider coverage allows for more accurate prediction of the direction, speed, and strength of tsunamis, reducing the risk of false alarms and missed warnings.

High accuracy: The DART system is designed to measure the height and speed of waves with high accuracy, providing detailed information on the magnitude and severity of tsunamis. This level of accuracy can improve predictions by providing more precise estimates of the extent of damage and the areas at risk, enabling more effective disaster planning and response.

Overall, the DART system and sensors offer significant advantages over traditional seismometers and coastal tide gauges, providing more accurate and timely predictions of tsunami-related events, enabling faster response times, and reducing the risk of false alarms and missed warnings.

To know more about DART system refer to-

https://brainly.com/question/13015311

#SPJ11

When water is boiling :B. the molecules at the surface of the liquid evaporate first.

a. This is because the heat energy is transferred to the water from the bottom, causing the water molecules to gain energy and move faster. As the water molecules move faster, they collide with each other and break the intermolecular forces that hold them together. The water molecules at the surface have weaker intermolecular forces compared to those in the bulk of the liquid, which means they can more easily overcome these forces and evaporate.

b. The part of a liquid molecule that usually has the highest kinetic energy is the part that is moving the fastest. In a water molecule, this would be the oxygen atom, as it is larger and has more electrons than the hydrogen atoms. The oxygen atom therefore has a greater mass and a larger electron cloud, which allows it to move more quickly than the hydrogen atoms.

Learn more about molecules here:https://brainly.com/question/26556885

#SPJ1

To calculate the energy of a rogue wave with an amplitude of 15 meters, we can use the following formula:

E = 0.5ρAv^2

where E is the energy of the wave, ρ is the density of the water, A is the amplitude of the wave, and v is the velocity of the wave.

Assuming the density of water is 1000 kg/m^3 and the velocity of the wave is the standard gravitational acceleration of 9.81 m/s^2 (since rogue waves are caused by the interaction of multiple waves), we can calculate the energy of the rogue wave:

E = 0.5 x 1000 kg/m^3 x π x (15 m)^2 x (9.81 m/s^2)^2

E = 1.22 x 10^9 J

Therefore, the energy of a rogue wave with an amplitude of 15 meters is approximately 1.22 x 10^9 joules.

To know more about rogue refer here

https://brainly.com/question/12121401#

#SPJ11

In B8, enter the custom transaction number function: `=C8&D8&LEFT(E1,1)`. Use Auto Fill to copy it down column B.

In G8, enter the nested function: `=IF(AND(E8="Credit",F8>=4000),"Flag","")`. Auto Fill it down column G.

In D5, create a data validation list with Quantity, Payment Type, and Amount.

In B5, type Trans# 30038C. In D5, select Quantity.

In F5, enter the nested lookup function: `=IF(D5="Quantity",VLOOKUP(B5,C8:F32,2,FALSE),IF(D5="Payment Type",VLOOKUP(B5,C8:F32,3,FALSE),IF(D5="Amount",VLOOKUP(B5,C8:F32,4,FALSE),"")))`.

Follow these steps to achieve the desired result in your Sales worksheet.

To know more about nested function click on below link:

https://brainly.com/question/30186413#

#SPJ11

The pH of the buffered solution is 4.374.

A buffered solution is a solution that resists changes in pH when small amounts of acid or base are added to it.

In order to calculate the pH of a buffered solution, we need to use the Henderson-Hasselbalch equation, which is pH = pKa + log([A-]/[HA]). In this equation, pKa is the dissociation constant of the weak acid (benzoic acid in this case), [A-] is the concentration of the conjugate base (sodium benzoate), and [HA] is the concentration of the weak acid.

First, we need to find the concentrations of benzoic acid and sodium benzoate in the solution. We can use the equation n = cV, where n is the number of moles, c is the concentration, and V is the volume.

For benzoic acid:
n = (21.5 g / 122.12 g/mol) = 0.176 mol
c = 0.176 mol / 0.2 L = 0.88 M
[HA] = 0.88 M

For sodium benzoate:
n = (37.7 g / 144.11 g/mol) = 0.262 mol
c = 0.262 mol / 0.2 L = 1.31 M
[A-] = 1.31 M

Next, we need to find the pKa of benzoic acid. The pKa of benzoic acid is 4.20.

Now we can plug in the values into the Henderson-Hasselbalch equation:
pH = 4.20 + log([1.31]/[0.88])
pH = 4.20 + log(1.49)
pH = 4.20 + 0.174
pH = 4.374

Therefore, the pH of the buffered solution is 4.374.

To know more about pH, visit:

https://brainly.com/question/15289741#

#SPJ11

The pH of the solution is 4.9.

The pH and pOH of a solution are related by the equation:

pH + pOH = 14

Therefore, if the pOH of a solution is 9.1, we can calculate its pH as:

pH = 14 - pOH

pH = 14 - 9.1

pH = 4.9

So, the pH of the solution is 4.9. The pH scale is a logarithmic scale that measures the acidity or basicity of a solution. A pH of 7 is neutral, while a pH below 7 is acidic and a pH above 7 is basic. In this case, the pH is below 7, which means the solution is acidic.

To know more about acidity, here

brainly.com/question/11543614

#SPJ4

The age of the rock is approximately 2.6 billion years.

The fact that the rock contains one-fourth of its original amount of potassium-40 means that three-quarters of the original potassium-40 has decayed.

Since the half-life of potassium-40 is 1.3 billion years, this means that the rock has gone through two half-lives of decay.

To calculate the age of the rock, we can use the following formula:

age = number of half-lives x half-life

In this case, the number of half-lives is 2 and the half-life is 1.3 billion years. Plugging these values into the formula, we get:

age = 2 x 1.3 billion years

age = 2.6 billion years

to know more about age of the rock refer here:

https://brainly.com/question/31257496#

#SPJ11

The pH of the NaOH solution prepared to react with the pennies is 14.550.

To determine the molarity of the NaOH solution prepared to react with the pennies, follow these steps:

1. Calculate the moles of NaOH: Divide the mass of NaOH by its molar mass (142.1 g / 39.997 g/mol) = 3.553 moles of NaOH.

2. Calculate the volume of the solution: Convert the volume from mL to L (1000.0 mL * (1 L / 1000 mL)) = 1.000 L.

3. Calculate the molarity: Divide the moles of NaOH by the volume of the solution (3.553 moles / 1.000 L) = 3.553 M.

The molarity of the NaOH solution prepared to react with the pennies is 3.553 M.

To determine the pH of the solution:

1. Use the formula: pH = -log[H+], where [H+] represents the concentration of hydrogen ions in the solution.

2. Since NaOH is a strong base, it dissociates completely in water. The concentration of OH- ions is equal to the molarity of NaOH (3.553 M).

3. Calculate the pOH: pOH = -log[OH-] = -log(3.553) = -0.550.

4. Convert pOH to pH: pH = 14 - pOH = 14 - (-0.550) = 14.550.

The pH of the NaOH solution prepared to react with the pennies is 14.550.

To know more about pH :

https://brainly.com/question/29766400

#SPJ11

The mass of H₂ used in the reaction, given that 2.75 g of CO was inserted is 0.39 grams

The mass of H₂ used in the reaction can be obtained as illustrated below:

Balanced equation:

CO + 2H₂ -> CH₃OH

From the balanced equation above,

28 grams of CO required 4 grams of H₂

Therefore,

2.75 grams of CO will require = (2.75 grams × 4 grams) / 28 grams = 0.39 grams of H₂

Thus, we can conclude that the mass of H₂ used in the reaction is 0.39 grams

Learn more about mass:

https://brainly.com/question/21940152

#SPJ1

ans.1

blank 1 = 4

blank 2 = 4

blank 3 = 1

blank 4 = 8

ans.2

blank 1 = 10

blank 2 = 15

blank 3 = 1

blank 4 = 30

ans.3

blank 1 =  1

blank 2 = 2

blank 3 = 2

blank 4 = 1

blank 5 =2

The pH of the buffer is 4.60.

To calculate the pH of a buffer, we can use the Henderson-Hasselbalch equation:

[tex]pH = pKa + log([A-]/[HA])[/tex]

where pKa is the dissociation constant of the weak acid, [tex][A-][/tex] is the concentration of the conjugate base, and [tex][HA][/tex] is the concentration of the weak acid.

In this case, the weak acid is acetic acid[tex](HC2H3O2)[/tex], the conjugate base is acetate [tex](C2H3O2-)[/tex], and the dissociation constant (Ka) is [tex]1.8 × 10^-5[/tex].

First, we need to calculate the ratio of [tex][A-]/[HA][/tex]:

[tex][A-]/[HA] = (0.162 M)/(0.225 M) = 0.72[/tex]

Next, we can substitute the values into the Henderson-Hasselbalch equation:

[tex]pH = pKa + log([A-]/[HA])\\pH = -log(1.8 × 10^-5) + log(0.72)[/tex]

pH = 4.74 + (-0.14)

pH = 4.60

Therefore, the pH of the buffer is 4.60.

To know more about pH refer to-

https://brainly.com/question/491373

#SPJ11

Ma is the equivalent of an element that belongs to the [tex]3_r_d[/tex] column of the periodic table, while Tw is the equivalent of an element that belongs to the 6th column of the periodic table in this alternate dimension.

What is Compound?

In chemistry, a compound is a substance composed of two or more different types of elements chemically bonded together in a fixed proportion. The elements in a compound are combined in a way that results in a new substance with different chemical and physical properties from the individual elements that make it up.

Let's assume that Ma has a charge of +3 and Tw has a charge of -2 in this alternate dimension. To balance the charges, we need 3 Tw atoms for every 2 Ma atoms.

To know more about Compound, visit;

https://brainly.com/question/29108029

#SPJ4

During alpha decay, atomic nuclei emit alpha particles, which are helium-4 nuclei composed of two protons and two neutrons. So, during alpha decay, the total mass of the reactants is equal to the mass of the main nucleus before decay.

In beta-plus decay, also called positron emission, protons in the nucleus are converted into neutrons, and positrons and neutrinos are emitted. Since the mass of a positron is very small compared to the mass of a proton or neutron, the total mass of the reactants in beta and decay is very close to the mass of the parent nucleus before decay.

Beta -mm is also known as electrons or negatively, and the nucleus neutron is transformed into protons and electrons and is produced by antizatinrino. Because the electronic mass is very small compared to the mass of protons or neutrons, the total mass of the minimum minimum minimum reagent is very close to the body of the body.

Generally, the total mass of the reactants in a fission process is very close to the mass of the parent nucleus before fission, because the mass of the particles released during fission is much smaller than the mass of the parent nucleus. However, due to the conservation of energy and momentum, there can be slight differences in mass between the reactants and the decay products, called mass defects.

This mass defect is converted into energy according to Einstein's famous equation E = mc². where E is the energy released, m is the mass defect, and c is the speed of light.

learn more about total mass of reactants: https://brainly.com/question/19958395

#SPJ1

To neutralize 100.0ml of a 2.5 M solution of H2SO4, you will need 28.055 grams of KOH.

To neutralize 100.0ml of a 2.5 M solution of H2SO4, you will need to add a certain amount of KOH, which will react with the H2SO4 to form water and a salt. The goal of this process is to achieve a neutral pH of 7, indicating that the acid and base have been completely reacted.

To calculate how many grams of KOH are needed, you first need to determine the number of moles of H2SO4 present in the solution. This can be done using the formula:

moles = concentration (M) x volume (L)

Plugging in the values, we get:

moles H2SO4 = 2.5 M x 0.100 L = 0.250 moles

Since H2SO4 is a diprotic acid, meaning it can donate two hydrogen ions, it will require twice the amount of KOH to neutralize. Therefore, we need to double the number of moles of H2SO4 to get the number of moles of KOH needed:

moles KOH = 2 x 0.250 moles = 0.500 moles

Now we can use the formula for finding the mass of a compound using its moles and molar mass:

mass = moles x molar mass

The molar mass of KOH is 56.11 g/mol, so we can plug in the values and solve for the mass of KOH needed:

mass KOH = 0.500 moles x 56.11 g/mol = 28.055 g

Therefore, to neutralize 100.0ml of a 2.5 M solution of H2SO4, you will need 28.055 grams of KOH.

To know more about neutralize, visit:

https://brainly.com/question/27891712#

#SPJ11

The final pressure of the gas is 1,430 mmHg.

Using the combined gas law, we can relate the initial pressure, volume, and temperature to the final pressure and volume:

(P₁V₁)/T₁ = (P₂V₂)/T₂

where P₁, V₁, and T₁ are the initial pressure, volume, and temperature, and P₂ and V₂ are the final pressure and volume.

Plugging in the given values, we get:

(850 mmHg x 1.5 L)/288 K = (P₂ x 2.5 L)/308 K

Solving for P₂, we get:

P₂ = (850 mmHg x 1.5 L x 308 K)/(2.5 L x 288 K) = 1430 mmHg

Therefore, 1,430 mmHg is the final pressure of the gas.

To know more about pressure, refer here:

https://brainly.com/question/1890275#

#SPJ11

The central atom of a molecule that exceeds the octet rule must come from period 3 or below.

This is because elements in these periods have empty d-orbitals available for hybridization, which allows them to form more than four covalent bonds and exceed the octet rule.

Examples of such elements include sulfur (S), phosphorus (P), and chlorine (Cl). Elements in higher periods, such as xenon (Xe) and radon (Rn), can also exceed the octet rule but are relatively rare in organic chemistry.

It is important to note that not all atoms follow the octet rule, and some can have fewer than eight electrons in their valence shell due to their unique electronic configurations.

To know more about  octet rule refer to-

https://brainly.com/question/865531

#SPJ11

The mass of chlorine needed to react with 0.175 g of gold is 94.52 mg.

The balanced chemical reaction is :
2 Au + 3 Cl₂ → 2 AuCl₃

Relative atomic masses: Cl = 35.5 and Au = 197

Converting the mass of gold to moles:
0.175 g Au * (1 mol Au / 197 g Au) = 0.00088756 mol Au

The number of moles of Cl₂ needed to react with the gold is:
=0.00088756 mol Au * (3 mol Cl₂ / 2 mol Au) = 0.00133134 mol Cl₂

Converting the moles of Cl₂ to grams:
=0.00133134 mol Cl₂ * (2 x 35.5 g Cl₂ / 1 mol Cl₂) = 0.09452 g Cl₂

Converting the mass of Cl₂ from grams to milligrams:
=0.09452 g Cl₂ * (1000 mg / 1 g) = 94.52 mg Cl₂

Therefore, the mass of chlorine needed to react with 0.175 g of gold is approximately 94.52 mg.

To learn more about moles visit:

https://brainly.com/question/24191825

#SPJ11

The total energy absorbed by a 500 g sample of red river ice when it is brought indoors and melted from -40°C to 25°C is 218,250 joules. This includes the energy required to raise the temperature of the ice, melt the ice, and raise the temperature of the resulting liquid water.

To calculate the total energy absorbed by the ice sample, we need to consider the different processes involved in the transition from ice at -40°C to liquid water at 25°C.

First, we need to calculate the energy required to raise the temperature of the ice from -40°C to 0°C:

Q1 = m × cice × ΔT1

Q1 = 500 g × 2.09 J/gK × (0°C - (-40°C))

Q1 = 41800 J

Next, we need to calculate the energy required to melt the ice at 0°C:

Q2 = m × ΔHfusion

Q2 = 500 g × 6.02 kJ/mol ÷ 18.02 g/mol

Q2 = 166 kJ

Then, we need to calculate the energy required to raise the temperature of the water from 0°C to 25°C:

Q3 = m × cwater × ΔT2

Q3 = 500 g × 4.18 J/gK × (25°C - 0°C)

Q3 = 10450 J

Finally, we add up the three energy values to get the total energy absorbed by the ice sample:

Qtotal = Q1 + Q2 + Q3

Qtotal = 41800 J + 166000 J + 10450 J

Qtotal = 218250 J

Therefore, the total energy absorbed by the ice sample is 218250 joules (J).

To know more about the total energy refer here :

https://brainly.com/question/3551742#

#SPJ11

A reaction must be spontaneous if its occurrence is exothermic with an increase in entropy.

For a reaction to be spontaneous, two factors are considered: enthalpy change (ΔH) and entropy change (ΔS). A spontaneous reaction usually has a negative ΔH, indicating that it is exothermic (releases heat).

Additionally, a spontaneous reaction has a positive ΔS, meaning there is an increase in entropy (disorder) in the system. The combination of these two factors, along with temperature (T), determines the Gibbs free energy change (ΔG), where ΔG = ΔH - TΔS.

A negative ΔG value signifies that the reaction is spontaneous. Therefore, a reaction with an exothermic occurrence and an increase in entropy is more likely to be spontaneous.

To know more about Gibbs free energy click on below link:

https://brainly.com/question/13318988#

#SPJ11

Among the halogens, [tex]I2[/tex] has the lowest boiling point.

The boiling point of a substance is influenced by the strength of its intermolecular forces, which are the forces that hold molecules together. The halogens belong to the same group in the periodic table and have similar electronic configurations.

The boiling point increases with increasing molecular weight because the intermolecular forces increase with the size of the molecules.

The strength of the intermolecular forces depends on the type of attractive forces between the molecules. Among the halogens, the strength of the intermolecular forces increases with increasing polarity of the molecule.

Fluorine is the most electronegative of the halogens and has the smallest atomic size. Due to its high electronegativity, it has the strongest dipole-dipole interaction between its molecules, leading to the highest boiling point among the halogens.

On the other hand, iodine has the weakest intermolecular forces, leading to the lowest boiling point among the halogens. Therefore, among the halogens, I2 has the lowest boiling point.

To know more about halogens refer to-

https://brainly.com/question/11156152

#SPJ11

Boyle's Law states that the product of the pressure and volume of a gas is constant when the temperature is held constant. Mathematically, this can be expressed as:

PV = k, where P represents pressure, V represents volume, and k is a constant value.

From this equation, it becomes evident that if the temperature remains constant, an increase in pressure will result in a decrease in volume, and vice versa. In simpler terms, when the temperature is constant, the volume of a gas is inversely proportional to its pressure.

To further illustrate this point, consider a gas enclosed in a piston. If the temperature remains constant and you apply more pressure to the piston by compressing it, the volume of the gas will decrease. Conversely, if you decrease the pressure by allowing the piston to expand, the volume of the gas will increase.

In summary, when the temperature of a gas is constant, its volume and pressure share an inverse relationship, as described by Boyle's Law. This means that an increase in pressure will lead to a decrease in volume, while a decrease in pressure will lead to an increase in volume.

To know more about Boyle's Law refer here

https://brainly.com/question/30367067#

#SPJ11

The object absorbed 356.4 J of heat energy.

To calculate the amount of heat energy absorbed by an object, we can use the formula:

Q = mcΔT

where Q is the heat energy absorbed, m is the mass of the object, c is the specific heat capacity of the object, and ΔT is the change in temperature of the object.

Let's put in the given values:

m = 18 g (mass of object)

c = 0.900 J/(g*C) (specific heat of object)

ΔT = 40°C - 18°C = 22°C (change in temperature of object)

Now we can calculate the heat energy absorbed:

Q = mcΔT

Q = (18 g)(0.900 J/(g*C))(22°C)

Q = 356.4 J

Therefore, the object absorbed 356.4 J of heat energy.

Learn more about Specific Heat at

brainly.com/question/11297584

#SPJ4

The difference in temperature from Saturday to Sunday is 9 degrees Celsius. This means that the temperature increased by 9 degrees from Saturday to Sunday.

To show the difference in temperature from Saturday to Sunday, we can use the equation:

Difference = Sunday temperature - Saturday temperature

Given that the temperature on Saturday is -13° and on Sunday it is -4°, we can calculate the difference in temperature using the above equation as follows:

Difference = -4° - (-13°)

Difference = -4° + 13°

Difference = 9°

The number line is a graphical representation of numbers where we can visualize their position relative to each other. Starting from -13° on the number line and moving 9 units to the right, we reach -4°, which represents the temperature on Sunday. This visualization confirms that the difference between the two temperatures is 9 degrees.

To learn more about temperature follow the link:

brainly.com/question/14633960

#SPJ4

The concentration of pesticide remaining after 62.0 minutes at 25°C is 0.0191 M.

The first-order rate law for a reaction can be expressed as:

[tex]ln([A]/[A]₀) = -kt[/tex]

Where [A] is the concentration of the reactant at any given time, [A]₀ is the initial concentration, k is the rate constant, and t is the time elapsed.

Using the given rate constant of [tex]6.40 × 10^(-3) min^(-1)[/tex]and the initial concentration of 0.0314 M, we can plug in the values and solve for [A] after 62.0 minutes:

[tex]ln([A]/0.0314) = -(6.40 × 10^(-3) min^(-1)) × (62.0 min)[/tex]

Solving for [A], we get:

[tex][A] = 0.0314 × e^(-(6.40 × 10^(-3) min^(-1)) × (62.0 min))[/tex]

[A] = 0.0191 M

Therefore, the concentration of pesticide remaining after 62.0 minutes at 25°C is 0.0191 M.

To know more about pesticide refer to-

https://brainly.com/question/31600813

#SPJ11

Identifying areas with widespread precipitation and locating a weather front. Since you haven't provided a specific map or image, how to approach these tasks using the given terms.

Part C: To identify areas with the most widespread precipitation, look for large patches of color on a weather map or satellite image. These colors typically represent different levels of precipitation intensity. The most widespread precipitation will be in areas where these colored patches cover a large geographic region.

Part D: To locate a weather front, look for a line of precipitation on the map or image. This line often represents a boundary between two air masses with different temperatures and humidity levels. To determine the front's direction, you can observe the movement of the line over time, either by analyzing a series of images or by referring to weather forecasts. The front will typically move in the direction that the air masses are being pushed by prevailing winds.

Please refer to a specific weather map or satellite image and apply these steps to find the areas with widespread precipitation and the location and direction of a weather front.

To know more about widespread precipitation :

https://brainly.com/question/28140571

#SPJ11

Answer:

An electron has a negative charge therefore, losing the electron will cause the atom to be a positive ion. An ion is an atom where the number of protons does not equal the number of electrons.

It is anticipated that temperatures in the lower atmosphere would rise as carbon dioxide ([tex]CO_2[/tex]) levels in the atmosphere continue to rise. This is because CO2, a greenhouse gas, keeps heat from going back into space and instead stores it in the atmosphere. More heat will be trapped when [tex]CO_2[/tex] concentration rises, producing a warming effect. The Greenhouse Effect is a common name for this phenomenon.

According to predictions made by the Intergovernmental Panel on Climate Change (IPCC), a doubling of atmospheric [tex]CO_2[/tex] concentrations might lead to a 1.5–4.5 degree Celsius rise in global temperature. Among other things, this temperature rise may have a profound effect on ecosystems, weather patterns, and sea levels.

To know more about Greenhouse Effect, here

brainly.com/question/13706708

#SPJ1

To get the initial pH, you need to calculate the new concentration of the substance in the diluted solution and add the required amount of substance to achieve the desired pH.

pH is a measure of the acidity or basicity of a solution. It is a logarithmic scale ranging from 0 to 14, where a pH of 7 is considered neutral, below 7 is acidic, and above 7 is basic.

If you add too much water to your solution, it will dilute the concentration of the substance in the mixture and may change the pH. To get the initial pH, you cannot simply add the same volume of the substance as the water you added back into the mixture.

This is because the amount of substance required to achieve the desired pH is dependent on the concentration of the substance in the mixture.

To determine the amount of substance required to achieve the desired pH, you need to calculate the new concentration of the substance in the diluted solution. This can be done using the formula:

C1V1 = C2V2

Where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Once you have calculated the new concentration, you can then add the required amount of substance to the diluted solution to achieve the desired pH.

In summary, adding too much water to a solution can change the pH, and adding the same volume of substance as the water added will not restore the initial pH. To get the initial pH, you need to calculate the new concentration of the substance in the diluted solution and add the required amount of substance to achieve the desired pH.

To know more about pH, visit:

https://brainly.com/question/15289741#

#SPJ11