All ethyl esters of long-chain aliphatic acids (for example, ethyl tetradecanoate, C13H27cooCH2CH3) show significant fragment ions at m/z 88, 73 and 45. Draw the structure of the ion that gives the mz SS peak. In cases where there is more than one answer. just draw one You do not have to include lone pairs in your answer. Include all valence radical electrons in your answer. Do not use the square brackets tool in your answer.

The feedstock used in the production of biodiesel is also different from that of ethanol, with biodiesel feedstocks being derived from indigenous sources such as plant oils or animal fats.

Biochemical steps in the production of ethanol from a first generation feedstock:

Ethanol is a biofuel that is made by the fermentation of glucose (C6H12O6) from sugar cane, wheat, or maize feedstocks. These feedstocks are first pretreated before the conversion process. The process of producing ethanol can be divided into five main steps as outlined below:

1. Pretreatment: In the first step, the feedstock undergoes pretreatment that helps to remove lignin, hemicellulose, and other impurities that are present in the plant cell wall. This step exposes the cellulose component to the enzymatic hydrolysis process.

2. Enzymatic hydrolysis: In this step, the cellulose component is converted into glucose using enzymes that break down the cellulose molecule into smaller glucose molecules.

3. Fermentation: After hydrolysis, the glucose is converted to ethanol by fermentation. The fermentation process is carried out by yeast or bacteria, which converts the glucose to ethanol through the process of anaerobic respiration.

4. Distillation: Once the ethanol is produced, it is then distilled to separate the ethanol from the water and other impurities.

5. Dehydration: In this final step, the water is removed from the ethanol using a dehydration process to obtain a pure form of ethanol. Compare the process (without giving details) to the production of biodiesel from indigenous feedstock.

Biodiesel is a biofuel that is made from plant oils or animal fats through a process known as transesterification. In the transesterification process, the triglycerides in the feedstock are reacted with an alcohol, usually methanol, to produce fatty acid methyl esters (FAMEs) and glycerol.

The FAMEs are then separated from the glycerol by distillation to produce biodiesel. The production of biodiesel is quite different from that of ethanol as it involves the use of transesterification to produce the biofuel.

The feedstock used in the production of biodiesel is also different from that of ethanol, with biodiesel feedstocks being derived from indigenous sources such as plant oils or animal fats.

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The volume of 3.5 m HCl can be prepared from 2.50 L of 8.00 m HCl is given by 5.71 L, option B.

The amount of three-dimensional space that is occupied by matter (solid, liquid, or gas) is measured by the physical quantity known as volume. It is a derived quantity that takes the length unit as its starting point. The SI unit for volume is the cubic metre (m3), however litres, millilitres, ounces, and gallons are also often used. Since the field of chemistry frequently deals with liquid substances, mixtures, and reactions that demand for a certain volume of liquids, a volume definition is necessary.

Initial volume = 2.50 L

Initial concentration = 8.00 M

Final concentration = 3.5 M

V₁C₁ = V₂C₂

V₂ = 2.50 x 8/3.5

= 5.71 L

Capacity and volume are frequently used interchangeably. The two quantities are connected, yet they are still distinct from one another. Volume is the amount of space a thing takes up, whereas capacity is a container's quality, especially the amount of liquid it can store. For instance, a rectangular aquarium has a capacity of 5 L since it can hold no more water than that amount. But regardless of whether it contains water or not, it still takes up the same amount of space relative to its volume.

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Question A. How does the composition of the atmosphere change from year to year? most likely would be studied by a chemist.

The work of a chemist professional is based on examining the composition of the different materials and compounds that form the subject of study such as in this case the composition of the atmosphere.

Therefore, with this data, we can see that the work of a chemist professional is based on deciphering the composition of the different compounds that form the natural world.

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The false statements about catalysts are:

Catalysts affect the energy of products.

Catalysts decrease the activation energy for both the forward and the reverse directions of a given reaction.

What is Catalysts?

A catalyst is a substance that speeds up the rate of a chemical reaction without being consumed in the process. Catalysts work by lowering the activation energy required for a reaction to occur, which allows the reaction to proceed more quickly and with less energy input.

Catalysts can be used in a wide range of chemical reactions, from industrial processes to biological systems. Examples of catalysts include enzymes in living organisms, transition metals in chemical reactions, and acid or base catalysts in organic chemistry.

The correct statements about catalysts are:

Catalysts speed up the rate of reactions by lowering activation energy.

Catalysts affect the energy of reactants.

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Answer:

Carbon disulfide, CS2 , will have a total of 16 valence electrons, 4 from the carbon atom and 6 from each of the two sulfur atoms.

Explanation:

Your Welcome!

Answered By : TrinTrinPrinted!

The total electron pairs in the structure of Carbon disulfide (CS₂) is 8 electron pairs.

Electron pair is, two electrons occupying the same orbital in an atom or molecule.

CS₂ is Carbon disulfide, it will have a total of 16 valence electrons, 4 from the carbon atom and 6 from each of the two sulfur atoms.

The 16 valence electrons will form 8 electron pairs.

Thus, the total electron pairs in the structure of Carbon disulfide (CS₂) is 8 electron pairs.

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0.80 m khco3 has a pH of 8.3.

The primary mechanisms by which the kidneys maintain a healthy acid-base balance are sodium reabsorption and the tubular secretion of hydrogen and ammonium ions. When the body retains more sodium and more acid, the urine gets progressively more acidic.

The amount of free hydrogen ions contained in a food directly affects its pH level. Food acids produce free hydrogen ions, which are responsible for the unique sour flavor of acidic foods. In this way, we free acidity can be measured by pH.

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Answer:

The answers to your questions are given below below

Explanation:

1. The calculation will require multiple steps because the unit of measurement of the theoretical and actual yield is different.

2. Determination of the percentage yield.

We'll begin by converting 6733 mg to g. This can be obtained as follow:

1000 mg = 1 g

Therefore,

6733 mg = 6733 mg × 1 g / 1000 mg

6733 mg = 6.733 g

Finally, we shall determine the percentage yield. This can be obtained as follow:

Theoretical yield = 14.79 g

Actual yield = 6.733 g

Percentage yield =?

Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 6.733 / 14.79 × 100

Percentage yield = 673.3 / 14.79

Percentage yield = 45.5%

the reaction of the equilibrium for caco3 was found to be: CaCO 3(s)⇌CaO(s)+CO 2(g); K c=0.005 mole/litre A 3.25 g

what is calcium carbonate (caco3) ?

CaCO3 is the chemical formula for calcium carbonate. It is found in rocks as the minerals calcite and aragonite (most notably as limestone, a form of sedimentary rock composed primarily of calcite) and is the primary component of eggshells, gastropod shells, shellfish skeletons, and pearls. Calcareous refers to things that contain or resemble calcium carbonate. The active element in agricultural lime is calcium carbonate, which is formed when calcium ions in hard water combine with carbonate ions to form limescale. It is used in medicine as a calcium supplement or as an antacid, but excessive ingestion can be harmful, causing hypercalcemia and digestive problems.

the reaction of the equilibrium for caco3 was found to be: CaCO 3(s)⇌CaO(s)+CO 2(g); K c=0.005 mole/litre A 3.25 g

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To determine the pH of a solution using a pH indicator paper, you need a color chart or a color scale that corresponds to different pH values.

This color chart or scale is used to compare the color of the pH indicator paper after it has been immersed in the solution. The pH indicator paper is impregnated with a universal pH indicator, which is a chemical compound that changes color depending on the acidity or alkalinity of the solution.

The indicator undergoes a chemical reaction with the hydrogen ions (H+) or hydroxide ions (OH-) present in the solution, resulting in a color change.

By comparing the color of the pH indicator paper with the color chart or scale, you can determine the approximate pH of the solution. The color chart usually provides a range of colors corresponding to different pH values, allowing you to match the observed color to the nearest pH value.

In the hypothesis mentioned, the aim is to calibrate a cabbage pH indicator using the pH values obtained from a universal pH indicator. Therefore, in addition to the pH indicator paper and color chart, you would also need a range of solutions with known pH values to establish a calibration curve specific to the cabbage pH indicator.

In summary, to determine the pH of a solution using a pH indicator paper, you need a color chart or scale that correlates the observed color of the pH indicator paper with different pH values. This chart or scale serves as a reference for interpreting the color change and determining the pH of the solution.

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Answer: COLOR KEY

Explanation: CS

Answer:

20 km per hour

Explanation:

Answer:

20.1 kmph

Explanation:

Since you usually need the answer to be a unit rate, where the denominator is always 1, you need to divide by whatever the numerator, the km, by the denominator, the hours. 40.2/2 is equal to 20.1.

Answer:

molecular mass = 78

Empirical Formula is

C= 92.3/12= 7.69

H= 7.68/1= 7.68

therefore Empirical formula is

CH

molecular formula is

(CH)n= 78

(12+1)n=78

n=78/13

n=6

molecular formula is

C6H6

Answer:

what do you mean?

Explanation:

The total mass of 4 tin is in grams is 580 grams and in kg is 0.58kg.

One tin of chopped tomatoes weight is 145 grams

and we have to calculate it for 4

so for 4

145*4 =580 grams

and we have to change it into kilograms so

580 /1000  = .58kg

By 1,000, divide the number of grams.

To convert from grams to kilograms, simply divide by 1,000 because there are 1,000 grams in every kilogram. If necessary, construct the equation using fractions. Put the number of grams over 1 and divide it by the conversion factor, which is 1 kg / 1,000 g. Your answer in kilograms will result from the cancellation of the grams. Remember to use the appropriate units to mark your response.

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To wait for the amount of Au-198 to fall to 0.75 mg when Gold-198 is used to treat liver cancer and has half-life is 2.7 days if ingest 3.75 mg of Au-198 would wait 6.26 days.

Gold-198 has a half-life of 2.7 days, which means that after 2.7 days, half of the initial amount of gold-198 would decay. To find out how long it would take for the amount of gold-198 to fall to 0.75 mg, we can use the following formula:

Final amount = Initial amount ×  (1/2)^(number of half-lives)

Let's assume that the initial amount of gold-198 is 3.75 mg, and we want to find out how many half-lives it would take for the amount to fall to 0.75 mg. We can set up the equation as follows:

0.75 mg = 3.75 mg × (1/2)^(number of half-lives)

Dividing both sides by 3.75 mg, we get:

0.2 = (1/2)^(number of half-lives)

Taking the logarithm of both sides, we get:

log(0.2) = number of half-lives x log(1/2)

Solving for the number of half-lives, we get:

number of half-lives = log(0.2) / log(1/2)

Using a calculator, we get:

number of half-lives ≈ 2.32

Therefore, it would take approximately 2.32 x 2.7 days = 6.26 days for the amount of gold-198 to fall to 0.75 mg.

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Answer: the answer is B: Minerals dissolve and crystallize! :D

Explanation: hope this helps!

The sum of 3(3)/(8) and 6(1)/(2) is 5(5)/(8), which is a mixed number representing 5 whole units and 5/8 of another unit.

To find the sum of mixed numbers, we need to add the whole numbers and the fractions separately. Add the whole numbers: 3 + 6 = 9

Add the fractions: For the fractions 3/(8) and 1/(2), we need to find a common denominator. The least common multiple of 8 and 2 is 8.

Converting 3/(8) to have a denominator of 8:

3/(8) = (3 x 1)/(8 x 1) = 3/(8)

Converting 1/(2) to have a denominator of 8:

1/(2) = (1 x 4)/(2 x 4) = 4/(8)

Now, we can add the fractions:

3/(8) + 4/(8) = (3 + 4)/(8) = 7/(8)

Combine the whole numbers and fractions:

The whole numbers sum was 9 and the fractions sum was 7/(8). We can write this as a mixed number by dividing the numerator (7) by the denominator (8). The quotient is 0 with a remainder of 7. Therefore, the mixed number is 0(7)/(8), which can be simplified to 7/(8).

Therefore, sum of 3(3)/(8) and 6(1)/(2) is 5(5)/(8).

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Answer:

Are you talking about Cellular respiration within plant cells (mitochondria)? That's basically what it is if you didn't know

The boiling point of the solution is 81.527°C, which is more than the normal boiling point of benzene.

The boiling point elevation is given by the formula

ΔT = Kbp × b × iwhere,ΔT = boiling point elevation

Kbp = molal boiling point elevation constant  b = molality of the solution  i = van't Hoff factor

The van't Hoff factor depends on the degree of dissociation or association of the solute. Since Anthracene is a non-electrolyte, the van't Hoff factor i = 1.In order to find the molality of the solution, we use the formula,

molality = number of moles of solute / mass of solvent in kgHere,

Number of moles of Anthracene (C14H10) = 7.12 g / 178.22 g/mol = 0.03995 mol  Mass of benzene = 70.9 g

Molar mass of benzene = 78.11 g/mol Molality of the solution = 0.03995 mol / 0.0709 kg = 0.5638 m

Now, the boiling point elevation is given by

ΔT = Kbp × b × i= 2.53 K/m × 0.5638 m × 1= 1.427 K

The boiling point of the solution is the sum of the boiling point elevation and the normal boiling point of the solvent.

Boiling point of the solution = normal boiling point of benzene + boiling point elevation= 80.1°C + 1.427°C= 81.527°C

The boiling point of the solution is 81.527°C, which is more than the normal boiling point of benzene.

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Answer:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Answer:

Supply the body with Oxygen

Explanation:

The respiratory system helps remove waste gases and help you breath

(Your respiratory system consists of your lungs, mouth, and windpipe)

To calculate the ratio of uranium-235 to lead-207 atoms in the mineral sample, we can use the atomic masses and the concept of radioactive decay.

The ratio of uranium-235 to lead-207 atoms in the mineral sample is 1:3.The atomic mass of uranium-235 (U-235) is approximately 235 atomic mass units (amu), while the atomic mass of lead-207 (Pb-207) is approximately 207 amu.

Given:

Number of uranium-235 atoms = 50,000

Number of lead-207 atoms = 150,000

To find the ratio, we divide the number of uranium-235 atoms by the number of lead-207 atoms:

Ratio = Number of uranium-235 atoms / Number of lead-207 atoms

Ratio = 50,000 / 150,000

Simplifying the ratio:

Ratio = 1/3

Therefore, the ratio of uranium-235 to lead-207 atoms in the mineral sample is 1:3.

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The name of the given hydrocarbon in which 2 central carbon atoms with additional 3 methyl groups is 2-methylbutane.

Hydrocarbons are the organic compounds which are made up of by the combination of hydrogen and carbon atoms.

According to the question desired structure is attached below where:

Hence required hydrocarbon is 2-methyl butane.

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Answer:

B. 2-methylbutane

Explanation:

Correct on Edge 2022!!!

Good luck everyone, you got this! Have a great day!

The best starting material to use to produce the tertiary alcohol shown without producing additional alcohols is Isobutene.

The production of the tertiary alcohol shown without producing additional alcohols is possible with the help of isobutene. Isobutene is also known as 2-methylpropene, is an unsaturated organic compound which is obtained by cracking or isomerization of petroleum oil.  When isobutene is reacted with methanol in the presence of sulfuric acid, it forms tertiary butyl methyl ether (TBME). The reaction takes place according to the following equation:

CH₃OH + (CH₃)₃CCH=CH₂ → (CH₃)₃COCH₃

In this reaction, isobutene is used as a starting material to produce tertiary butyl methyl ether without producing additional alcohols. The reaction mechanism is as follows:

Step 1: Formation of carbocation (CH₃)₃CCH=CH₂ + H₂SO₄ → (CH₃)₃C⁺ + HSO₄⁻

Step 2: Formation of intermediate (CH₃)₃C⁺ + CH₃OH → (CH₃)₃COCH₃

Step 3: Regeneration of the catalyst HSO₄⁻ + CH₃OH → H₂O + CH₃OSO₃H

In this way, isobutene is the best starting material to use to produce the tertiary alcohol shown without producing additional alcohols.

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Answer:

Explanation:

-a tendency to do nothing or to remain unchanged

-a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

Answer:

inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity

Explanation:

Answer:

i think is c,my ans will not be 100%correct

Answer:

Big dipper

Explanation:

Here is your answer look at your image below

Answer:

Two

Explanation:

In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products.

Answer: 2 it has two

Explanation:

Answer:

the answer is A

Explanation:

Forces are the intermolecular interaction between the matter. Forces present in a solid are strongest. Thus, option A is correct.

The matter is any substance that occupies a volume. Matter can be a solid, gas, or liquid. The solid phase particles are tightly closed to each other making the force strong.

The particles of liquids that are not too compact are a little free and in gases, the particles are very free, which makes the bonding and the force the weakest.

Therefore, option A. the solids have the strongest intermolecular bonding.

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The cathodic protection of Cu(s) can be provided if it is connected galvanically to Zn.

The metal with the more reduction potential will act as the anode and undergo oxidation, while the metal with the more positive standard reduction potential will act as the cathode and undergo reduction.

As Cu has a greater reduction potential than Zn, it has a greater capacity to reduce than that of Zn. So by galvanically connecting to zn, we can say that the cathodic protection of Cu can be obtained.

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The type of fallacy that this excerpt exemplifies is an appeal to tradition  (third option) rather than a false dichotomy, an appeal to pity, or the strawman fallacy.

Remember that a fallacy takes place if the reason provided for an argument is not valid as it is not supported by facts. This occurs in the statement presented because the reason for the speaker to support the idea of not having the elections a holiday is that this has never been done before.

This is not a valid reason and it is only based on tradition, therefore it can be categorized as an appeal to tradition.

Note: This question is incomplete; here are the missing options:

Group of answer choices

False dichotomy

Appeal to Tradition

Strawman Fallacy

Appeal to Pity

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