a 0.5222 −g sample of an unknown monoprotic acid was titrated with 9.98×10−2 . the equivalence point of the titration occurs at 23.72 ml. the molar mass of the unknown acid is _______ g/mol.

Answer:kj

Explanation:nnn

Answer:

When endothermic reaction takes place, the system gains heat from the surroundings and so the temperature of the surroundings decreases ie. it gets colder

Explanation:

A chemical reaction is exothermic if heat is released by the system into the surroundings.

STUDY WELL!

High concentration It means to have more solute molecules in the solution

High concentration refers to a large amount of a substance present in a certain space or volume. It can also mean that the concentration of a particular substance is higher than the concentration of other substances in the same mixture.

Thus if we have more solute in the system that is under study than the solvents we can say that the system is more concentrated or is a high concentration solution.

Learn more about concentration:https://brainly.com/question/3045247

#SPJ1

The maximum amount of carbon dioxide that can be formed from 15.2 g of glucose is approximately 22.31 grams.

To determine the maximum amount of carbon dioxide (CO2) that can be formed from 15.2 g of glucose (C6H12O6), we need to use the stoichiometry of the balanced chemical equation for the combustion of glucose.

The balanced chemical equation for the combustion of glucose is:
C6H12O6 + 6O2 -> 6CO2 + 6H2O

From the equation, we can see that 1 mole of glucose reacts with 6 moles of oxygen to produce 6 moles of carbon dioxide.

First, we need to calculate the number of moles of glucose in 15.2 g:
Molar mass of glucose (C6H12O6) = (12.01 g/mol x 6) + (1.01 g/mol x 12) + (16.00 g/mol x 6) = 180.18 g/mol
Moles of glucose = Mass of glucose / Molar mass of glucose = 15.2 g / 180.18 g/mol ≈ 0.0845 mol

Since 1 mole of glucose reacts with 6 moles of oxygen, we need to multiply the number of moles of glucose by 6 to determine the moles of oxygen:
Moles of oxygen = 0.0845 mol x 6 = 0.507 mol

Finally, since 1 mole of glucose produces 6 moles of carbon dioxide, we can calculate the maximum amount of carbon dioxide formed:
Moles of carbon dioxide = Moles of glucose x 6 = 0.0845 mol x 6 = 0.507 mol

To convert the moles of carbon dioxide to grams, we can multiply by the molar mass of carbon dioxide:
Molar mass of carbon dioxide (CO2) = (12.01 g/mol x 1) + (16.00 g/mol x 2) = 44.01 g/mol
Mass of carbon dioxide = Moles of carbon dioxide x Molar mass of carbon dioxide = 0.507 mol x 44.01 g/mol ≈ 22.31 g

Therefore, the maximum amount of carbon dioxide that can be formed from 15.2 g of glucose is approximately 22.31 grams.

Know more about carbon dioxide:

https://brainly.com/question/3049557

#SPJ11

We can form more HI by increasing the temperature.

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, typically in the form of heat. This means that the energy of the reactants is lower than the energy of the products, and the reaction requires an input of energy to proceed.

In an endothermic reaction, the temperature of the surroundings usually decreases because energy is being taken in from the environment. For example, when ice melts, the process is endothermic because the ice absorbs heat from its surroundings, causing the temperature to drop.

Learn more about endothermic reaction:https://brainly.com/question/23184814

#SPJ1

Answer:Remove HI gas

Explanation:Acellus confirmed

Answer:

The common name given to a triglyceride that is a solid at room temperature is "fat" or "saturated fat." Saturated fats are triglycerides that consist of fatty acids with no double bonds between the carbon atoms, causing them to be solid at room temperature. Examples of foods high in saturated fats include butter, lard, and animal fats.

Explanation:

there

Answer: Fats

Explanation:

Fats is a collection of organic compound esters of glycerol along with some fatty acids. They are generally solid at ordinary room temperature. Fats store energy in the body, protect body tissues by covering them, cushion internal organs, and transport fat-soluble vitamins in the blood stream. Fats are soft, low-melting solids, less dense than water.

There are various types of triglycerides. Two of which are saturated and unsaturated triglycerides. Saturated fats have no C=C groups &  unsaturated fats feature one or more C=C groups. Unsaturated fats tends to have a lower melting point than saturated analogies.

The chain of the fatty acids in naturally occurring triglycerides vary, but most of them contain 16, 18, or 20 carbon atoms. Both oil and fats are triglyceride the basic difference is that oil is liquid at room temperature whereas fats are solid!

To know more about Fats(Triglyceride) refer:

https://brainly.com/question/18934340

https://brainly.com/question/1739080

Answer:

One of the most notable characteristics of a mixture is that it does not have a fixed composition. Water, a compound, always has 11.2 percent hydrogen and 88.8 percent oxygen by weight. Brass is a mixture because it has varying amounts of copper and zinc. One type of brass may contain as much as 45 percent zinc, while another type may contain around 10 percent zinc. Mixtures may also have changing properties depending on their composition. The boiling point of a mixture of alcohol and water varies based on how much alcohol is in the mixture.

Hope this helps :)

The molecular formula for the substance with a molar mass of 1644.28 g/mol and an empirical formula of Bg₂DGr₃ is Bg₁₀D₅Gr₁₅.

To determine the molecular formula, we need to calculate the molecular weight of the empirical formula, which can be done by adding up the molar masses of the atoms in the empirical formula.

The molar mass of Bg₂DGr₃ is:

(2 x 10.81 g/mol) + (3 x 2.01 g/mol) + (3 x 72.63 g/mol) = 328.50 g/mol

Next, we can divide the given molar mass by the empirical formula mass to get the ratio between the empirical formula and the molecular formula:

1644.28 g/mol ÷ 328.50 g/mol = 5

This tells us that the molecular formula contains 5 times as many atoms as the empirical formula. To find the molecular formula, we simply multiply the subscripts in the empirical formula by 5:

Bg₁₀D₅Gr₁₅

Learn more about Molecular here:

https://brainly.com/question/14614762

#SPJ1

The transition corresponding to the highest frequency of light emitted is E. n=6 to n=3. This is because the frequency of light emitted is proportional to the difference in energy between the initial and final states.

According to the Bohr model, as the energy of the orbit increases, the radius of the orbit increases, and therefore the energy difference between two adjacent orbits increases. Thus, n=6 to n=3 has the greatest energy difference, and therefore the highest frequency of light emitted.


To better understand this concept, we can consider the relationship between the energy of the orbit and its radius. According to the Bohr model, the energy of an electron in an orbit of radius r is given by: E=-2.18x10^-18/r, where r is measured in meters. Thus, when the radius of the orbit increases, the energy of the orbit increases, and therefore the energy difference between two adjacent orbits increases. As a result, the frequency of light emitted increases.


In conclusion, the transition corresponding to the highest frequency of light emitted is n=6 to n=3. This is because the energy difference between these two orbits is the greatest and therefore the frequency of light emitted is the highest. Therefore the correct option is E

The complete question is :

Consider the Bohr model of the atom Which transition would correspond to the highest frequency of light emitted? Select one:

a. n=1 to n=5

b. n=4 to n=1

c. n=6 to n=10

d. n=2 to n=6

e. n=6 to n=3

Know more about  Bohr model here:

https://brainly.com/question/29400473

#SPJ11

Burning wood is an exothermic reaction. This reaction is a chemical change. It is exothermic because its reactions release heat to the surroundings. It is a chemical change because it is not reversible and produces things like ash, smoke, heat, light, and more.

The pH of a mixture of 10.0 ml of 0.00100 M solution of potassium hydroxide, KOH, and 10.0 ml of distilled water is 11.00.

To calculate the pH of the mixture using the formula for pH which is:

pH = -log[H⁺]

First, to find the concentration of hydroxide ions [OH⁻] in the given solution using the formula for the concentration which is given as follows:

Concentration (molarity) = Moles of solute/ volume of solution in Litres

Number of moles of KOH = molarity x volume

= 0.00100 mol/L x 0.0100 L = 1.00 x 10⁻⁵ mol

Concentration of KOH = 1.00 x 10⁻⁵5 mol / 0.010 L = 0.00100 M

For a neutral solution, the concentration of H⁺ ions is equal to the concentration of OH- ions.

Concentration of OH⁻ ions = 0.00100 M (since KOH is a strong base, it dissociates completely in water)

For a strong base like KOH,

pOH = -log[OH-] = -log (0.00100) = 3.00

Now, let's find pH using the formula for pH which is given below:

pH + pOH = 14.00

pH = 14.00 - pOH

pH = 14.00 - 3.00

pH = 11.00

Therefore, the pH of a mixture is 11.00.

Learn more about pH: https://brainly.com/question/2288405

#SPJ11

Answer:

In general, electrons can be shared between atoms (a molecular bond) or electrons can be completely removed from one atom and given to another (an ionic bond). ... Water is a molecule because it contains molecular bonds. Water is also a compound because it is made from more than one kind of element (oxygen and hydrogen).

Explanation:

In the systematic (IUPAC) naming system, the first step is to identify and number the longest carbon chain in the compound, which in this case is an octene. The systematic (IUPAC) name for the given compound is (Z)-4,5-dibromo-2,7,7-trimethyl-4-octene.

The numbering starts from the end that gives the substituents (bromine and methyl groups) the lowest possible locants.

Next, we indicate the position of the substituents on the carbon chain. In this compound, there are two bromine atoms located at carbons 4 and 5. The presence of two bromine atoms indicates that the compound is a dibromo compound.

The next part of the name indicates the stereochemistry of the compound. In this case, it is (Z)-4,5-dibromo, indicating that the two bromine atoms are on the same side of the double bond. The (Z) notation indicates a geometric isomer with the substituents on the same side.

Lastly, we indicate the presence of the methyl groups by including "2,7,7-trimethyl" in the name, indicating that there are three methyl groups at carbons 2, 7, and 7.

Overall, the systematic (IUPAC) name for the compound is (Z)-4,5-dibromo-2,7,7-trimethyl-4-octene.

Learn more about IUPAC here :

https://brainly.com/question/16631447

#SPJ11

Answer:

C. An electron can only change its mass in quantized amounts when it gains or loses energy.

Explanation:

From the pK we can determine that citric acid is a weak acid, acetic acid is weak acid, sulfuric acid is a strong acid, nitric acid is a strong acid.

In layman's terms, pKa is a measurement of an acid's strength. A strong acid will have a pKa value that is lower than 0. To be more specific, pKa is the Ka value's negative log base ten value (acid dissociation constant). How tightly a proton is retained by a Bronsted acid is how the strength of an acid is measured. The strength of the acid and its capacity to donate protons increase with decreasing pKa values.

Therefore, Citric acid is a weak acid, acetic acid is a weak acid, sulfuric acid is a strong acid, and nitric acid is a strong acid, according to the pK.

learn more about strong and weak acid at https://brainly.com/question/12811944

#SPJ4

the volume of 0.250 moles of propionic acid is 0.257 mL.

The density of a substance is a measure of its mass per unit volume, and it is usually expressed in units of grams per milliliter (g/mL). To find the volume of a substance, we can divide its mass by its density. In this case, we have the formula mass of propionic acid, which is 74.08 g/mol, and its density, which is 0.9880 g/mL.

To find the volume of 0.250 moles of propionic acid, we first need to find its mass. We can do this by multiplying the number of moles (0.250) by the formula mass (74.08 g/mol):

0.250 moles × 74.08 g/mol = 18.52 g

Once we have the mass, we can then find the volume by dividing the mass by the density:

18.52 g / 0.9880 g/mL = 18.52 g / 0.9880 mL = 0.257 mL

Therefore, the volume of 0.250 moles of propionic acid is 0.257 mL.

To learn more about propionic acid visit: https://brainly.com/question/15241093

#SPJ4

Answer: polymers

Explanation:

Polymers are huge natural molecules are connected with small natural molecules 

Answer:

when high-energy particles from the sun are trapped by earth's magnetic field

Explanation:

it is produced by a "depression" in the Earth's magnetic field in that area, caused by the fact that the center of the Earth's magnetic field is deviated from its geographic center by 450 km. Such an anomaly is thought by some to be a side effect of a Geomagnetic Reversal. These radiation belts originate from the Earth's intense magnetic field that is the product of their rotation. That field traps charged particles (plasma) from the Sun (solar wind), as well as charged particles that are generated by interaction of the Earth's atmosphere with cosmic radiation and high-energy solar radiation.

Answer:

D

Explanation:

its the last one

Answer:

I dont now

Explanation:

Equilibrium constant is a measure of the extent of a chemical reaction.

It is a ratio of the concentrations of products to reactants at a particular temperature and pressure, with each concentration raised to the power of its stoichiometric coefficient. The value of the equilibrium constant is dependent on temperature. As the temperature changes, the equilibrium shifts, and so does the value of the equilibrium constant.
In this case, the given equilibrium constant at 298 K is 4.9 × 10−6. To determine the value of the equilibrium constant at 373 K, we need to use the Van't Hoff equation, which relates the equilibrium constant at different temperatures:
ln(K2/K1) = ΔH/R [(1/T1) - (1/T2)]
where K1 is the equilibrium constant at the initial temperature (298 K), K2 is the equilibrium constant at the final temperature (373 K), ΔH is the enthalpy change of the reaction, R is the gas constant, T1 is the initial temperature, and T2 is the final temperature.

Assuming that the enthalpy change of the reaction is constant over the temperature range, we can solve for K2:

ln(K2/4.9 × 10−6) = ΔH/R [(1/298 K) - (1/373 K)]

K2 = 2.14 × 10−5

Therefore, the value of the equilibrium constant at 373 K is 2.14 × 10−5. As the temperature increased, the equilibrium shifted towards the products, resulting in a higher value of the equilibrium constant.

To learn more about equilibrium:

https://brainly.com/question/30694482

#SPJ11

Allied health acetylsalicylic acid means aspirin can be synthesized by combining salicylic acid and acetic acid through a condensation reaction. the group from phenol on the salicylic acid condenses with the carboxylic acid group of acetic acid, forming acetylsalicylic acid and condensation reaction means any of a class of reactions in which two molecules combine usually in the presence of a catalyst with elimination of water or some other simple molecule

Aspirin can be relieve pain and reduce the serious problems like heart attacks and strokes and aspirin are form of combining salicylic acid and acetic acid through in which two molecules combine in the presence of catalyst with elimination of water and the reaction is

salicylic acid + acetic acid →  acetylsalicylic acid

And then phenol on the salicylic acid condenses with the carboxylic acid group of acetic acid means

phenol + salicylic acid → carboxylic acid group of acetic acid

Structure of acetylsalicylic acid are given below

Know more about acetylsalicylic acid

https://brainly.com/question/14925906

#SPJ1

Answer: the first option

Explanation:

Direction has nothing to do with the speed/ kinetic energy

Answer: A

Explanation:

In the absence of a parallel collimator during SPECT imaging, the gamma rays emitted from the source would travel in multiple directions and result in blurred and scattered images.

A parallel collimator is used in order to localize the source of gamma emission during SPECT imaging. This is necessary because, in the absence of the collimator, the gamma photons emitted from different points in the source would reach the detector without any directionality, leading to blurred and indistinguishable images. The parallel collimator ensures that only gamma photons traveling parallel to the collimator's axis reach the detector, creating a clearer and more accurate representation of the gamma emission source.

The collimator is designed to only allow gamma rays that are traveling parallel to the collimator's axis to pass through, thus creating a focused beam and allowing for accurate localization of the source of gamma emission.

To know more about Parallel Collimator:

https://brainly.com/question/29036237

#SPJ11

The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


To learn more about molarity click here: brainly.com/question/31545539

#SPJ11

The amount of mass which is lost in the given process is 9.458 x 10^-10g using Einstein's equation.

The famous Einstein's equation given by E= m^c2, was proposed by German-born physicist Albert Einstein based on his theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other. Although it is not usually used, Einstein's equation, E = mc2 applies to chemical reactions and nuclear reactions. According to the provided data,

E = 85 kj = 85000j = 85000 kilogram-meters^2/second^2 (where 1 joule = 1 kilogram-meter^2/second^2)

c = speed of light = 299 792 458 m / s

Hence, using the Einstein equation:

E = mc^2

85000 = m * (299792458) ^2

m = 9.458 x 10^-13 kg = 9.458 x 10^-10 g

Learn more about Einstein's equation:

https://brainly.com/question/1603546

#SPJ4

We need 1.708 liters of the 2.5 m solution of acetic acid to provide 4.27 mol of acetic acid.

To solve this problem, we need to use the formula:

moles = volume (in liters) x concentration (in moles per liter)

First, let's rearrange the formula to solve for volume:

volume = moles / concentration

We are given the number of moles of acetic acid we need (4.27mol) and the concentration of the solution (2.5 m). Plugging these values into the formula, we get:

volume = 4.27mol / 2.5 mol/L
volume = 1.708 L

Therefore, we need 1.708 liters of the 2.5 m solution of acetic acid to provide 4.27 mol of acetic acid.

Learn more about acetic acid here

https://brainly.com/question/15202177

#SPJ11

The answer is Mg3 glad I helped

Answer:

mixture in which the composition is uniform throughout the

Explanation: