Classify the phrases as pertaining to fatty acid synthesis or fatty acid oxidation.

a. begins w/ carboxylation of acetyl CoA, occurs in cytoplasm, intermediates linked to acyl carrier protein, uses NADPH, a series of condensation, reduction, and dehydration reactions, committed step is formation of malonyl CoA, enzymes are joined in a multienzyme complex

b. acetyl CoA is a product, takes place in the mitochondria, intermediates linked to coenzyme A, uses FAD and NAD+

In the electron configuration 2 8 18 6 for element 34, Selenium:

The statement that applies include:

Selenium is a chemical element with the symbol Se and atomic number 34 and  a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.

The octet rule refers to the chemical rule of thumb which states that the tendency of atoms to prefer to have eight electrons in the valence shell.

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Answer: This is because the atomic radius increases with increasing electronic energy. This reduces the attraction for the valence electrons of other atoms, reducing reactivity.

The concentration of hydroxide ions is 0.001145 M and,  the ph given a concentration of aluminium is 3.9.

(Molar mass of 342.15 g/mol).

In order to answer this question, we must first convert our units. We are given 6.70 lb = 453.592 × 6.70 lb = 3039.0664 g of aluminium sulphate.

Water in 2050 gallons is equal to 2050 x 3.785 or 7759.25 litres.

Then, using the following formula, we will search for the Concentration of aluminium sulphate:

The formula for concentration is volume x moles.

Remember: 8.8823 moles is equal to 3039.0664 / 342.15 moles. 2050 gallons, or 7759.25 litres, make up the volume.

As a result, when we plug the values of the volume and number of moles into the previous equation (1), we get;

Concentration is equal to 8.8823 moles per 7759.25 litres, or 0.001145 M.

The solubility product equation, which is what we'll utilise next today, is as follows:

Ksp = (Al^3+) (OH^-)^3.

So, we have the ksp = 1.3 × 10^-33 and the value of (Al^3+)= 0.001145 M.

Hence, making (OH^-) the subject of the formula;

(OH^-) = ( 1.3 × 10^-33 / 0.001145)^1/3.

(OH^-) = 8 × 10^-11 M.

Hence, pOH = - log (OH^-)

pOH = - log (8 × 10^-11).

pOH = 10.1

Therefore, the value of pH is; 1

pH + pOH = 14.

pH = 14 - 10.1 = 3.9.

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3.97 mmol/L is the 15th percentile of chloride concentration values of blood chloride.

The 15th percentile of a normal distribution corresponds to the value of chloride below which 15% of the data lies. To determine this value for a normal distribution with a mean of 5 and a standard deviation of 1, we can use the standard normal distribution table or a calculator that can compute percentiles for a normal distribution.

Using a standard normal distribution table, we can find that the 15th percentile of a normal distribution with a mean of 0 and a standard deviation of 1 is -1.03. Since the mean of our distribution is 5 and the standard deviation is 1, we need to shift the value by 5 units to the right to find the 15th percentile of our distribution. Therefore, the 15th percentile value of chloride concentration is -1.03 + 5 = 3.97 mmol/L.

Alternatively, we can use a calculator that can compute percentiles for a normal distribution. For example, using the "NormDist" function in Microsoft Excel, we can calculate the 15th percentile value as follows:

=NORMDIST(3.97,5,1,TRUE)

This will return a value of 0.15, which indicates that the value of 3.97 mmol/L is the 15th percentile of the normal distribution.

It's important to note that this calculation assumes that the data follows a normal distribution. If the data is not normally distributed, the 15th percentile value may be different.

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Question - Suppose that blood chloride concentration (mmol/L) has a normal distribution with mean 05 and standard deviation. Determine the 15 percentile value of chloride concentration.

Answer:6.241

Explanation :Step 1: List the known quantities and plan the problem.

Step 2: Solve. n=PVRT=0.987atm×0.677L0.08206L⋅atm/K⋅mol×296K=0.0275mol. Now divide g by mol to get the molar mass. ...

Step 3: Think about your result. The R value that corresponds to a pressure in atm was chosen for this problem.

A person floats much higher in the Dead Sea than in ordinary water because salt water has a higher density than fresh water. Saline water has a density of (1080 kg m per cube) while fresh water has a density of ( 1000 kg m per cube). Because of this, swimming in salt water is simpler for swimmers.

Compared to the 3.5% salinity of the Mediterranean, the Dead Sea has a salinity of 34.2%. It ranks behind the Don Juan Pond and Lake Vanda in Antarctica, the Lake Assal in Djibouti, and Lake Vanda as the fourth saltiest body of water in the world. The Dead Sea doesn't pour out, which is one of the causes of excessive salinity.

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Complete Question

The water of the Dead Sea is extremely salty. which gives it a very high density of 1240 kg/m^3. Explain why a person floats much higher in the Dead Sea than in ordinary water.

A compound is a substance that can only be split into two or more compounds chemically.  

Compounds are compounds made up of two or more chemically coupled components that can only be broken down chemically into simpler substances. Compounds are compounds made up of two or more chemically coupled components that can only be broken down chemically into simpler substances. For instance, pure water is a compound since it contains solely H2O molecules. A compound is a substance that, due to the presence of multiple elements, can be divided into chemically simpler components. For instance, water is a substance made up of the elements oxygen and hydrogen. a material consisting of two or more components mixed chemically in a predetermined ratio.

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4.86 ml are required to fully react with 11.73 ml of 1.006 m ca(oh)2 in order to complete the reaction.

provided information to be calculated:

Using Ca3(PO4)2 (s) + 6H2O, one can calculate: 2H3PO4 + 3Ca(OH)2 (aq)

cal mols

7.33 moles of H3PO4 in a volume of 1 ml are needed to replace the 2 existing H3PO4; 7.33/1.508 = 4.86.

How do moles respond to a volume increase?

An increase in volume advantages the direction that produces more moles of gas, and because there are more moles of products in this situation, the reaction will move to the right and produce more moles of products.

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As shown in the figure below  [tex]H_2O_2[/tex] and [tex]NO_2^-[/tex] have have non linear structure and rest all given molecules have  linear structure.

[tex]H_2O_2[/tex] (Hydrogen peroxide) have open book like structure as shown in the figure below.

The geometry surrounding a central atom that is joined to two additional atoms at a bond angle of 180° is known as the linear molecular geometry in chemistry. When describing linear organic compounds with carbon centers, such as acetylene, sp orbital hybridization is frequently used.

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the heat of vaporization of water at 100°c is 40.66 kj/mol, Heat of vaporisation (HV) = q/m = 40.66 kJ/mol, quantity of heat is =  20.33 kjoules

q is heat absorbed or released , m is mass = 9 g, no. of moles of water = mass/mol wt = 9/18 = 0.5 moles, HV x m = q, uantity of heat is = 40.66 x 0.5 = 20.33 kjoule. The enthalpy of vaporisation, also known as the heat of vaporisation or heat of evaporation, is the amount of energy required to convert a liquid substance into a gas. The enthalpy of vaporisation depends on the pressure at which the transformation occurs. The heat of vaporisation is defined as the amount of heat required to convert 1g of a liquid into a vapour without causing the liquid's temperature to rise. Boiling refers to vaporisation at the boiling point. A boiling liquid's temperature remains constant until all of the liquid has been converted to a gas.

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0.321 g of hydrogen gas should be produced in this reaction.

To answer this question, we need to first calculate the number of moles of hydrogen gas produced when 0.159 moles of aluminum reacts with an excess of hydrochloric acid. Since the reaction is:

Al + HCl → AlCl3 + H2

The number of moles of hydrogen gas produced will be equal to the number of moles of aluminum used, i.e. 0.159 moles.

Next, we need to convert this number of moles of hydrogen gas to the number of grams of hydrogen gas. For this, we use the molar mass of hydrogen gas, which is 2.02 g/mol.

Therefore, the number of grams of hydrogen gas produced when 0.159 moles of aluminum reacts with an excess of hydrochloric acid is:

0.159 moles * 2.02 g/mol = 0.321 g.

Hence, the answer is 0.321 g of hydrogen gas.

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Property of ionic compounds is :The right response is option B: they have low melting points.

Ions are present in ionic compounds, which are held together by the attraction interactions between the ions with opposing charges. One of the most well-known ionic compounds is table salt, or sodium chloride. Molecular compounds are made up of separate molecules that are connected by sharing electrons (covalent bonding).

Salts, oxides, hydroxides, sulphides, and the majority of inorganic compounds are examples of ionic compounds. The electrostatic interaction between the positive and negative ions holds ionic solids together. For example, the sodium ions attract chloride ions while the chloride ion attracts sodium ions.

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option C BBr3 d  does not satisfy the octet rule among the four molecules. Boron tribromide does not obey the octet rule because it only has six electrons surrounding it.

Because an extra pair of electrons occupy the valence shell of phosphorus, phosphorus pentafluoride does not obey the octet rule. Because sulphur has eight electrons surrounding it, carbon disulfide follows the octet rule. Carbonate ion follows the octet rule because it has a full octet and eight electrons surrounding it. The rule of eight, electronic theory of valence, and octet theory of valence are all names for the octet rule. According to the octet theory, atoms interact with each other during chemical bond formation by losing, gaining, or sharing electrons. They do, however, develop a stable outermost shell of eight electrons. The rule of eight, electronic theory of valence, and octet theory of valence are all names for the octet rule. According to the octet theory, atoms interact with each other during chemical bond formation by losing, gaining, or sharing electrons. They do, however, develop a stable outermost shell of eight electrons.

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In a solution of 0.49 M Ca(NO3)2, the molar solubility of calcium fluoride  is 0.86X10-5

The solubility product constant, abbreviated Ksp, can be used to calculate the equilibrium concentration of ions when a salt dissolves in a solvent. Literature can be used to determine the Ksp value of salts that are often consumed at 25°C.

Ca(NO3)2 -> Ca2+(aq) + 2(NO3)-1

        CaF2(s) -> Ca2+(aq) + 2 F-(aq)

I                            0.49                 0

C                            x                     2x

E                          0.49+X             2x

We know the Ksp of Ca2+ is 1.46x10-10

solubility ksp = [Ca2+][F-]2

ksp = (0.49+x) *(2x)^2

1.46x10-10= (0.49) * 4x^2

x= √(0.756*10-10) = 0.86x10-5

Hence the molar solubility of calcium fluoride in a solution containing 0.49M Ca(NO3)2.  is 0.86x10-5M

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Answer:

1) The required mass of iron III oxide is 2.1 Kg

2) The empirical formula of aluminum oxide is  [tex]Al_{2} O[/tex].

3) The mass of lithium chloride required is 27.7 g

4) The mass of carbon dioxide produced is 186.6 g

We have to note that we can only be able to obtain the parameters that has to  do with an equation when we can be able to use the stoichiometry of the reaction and this depends on the equation of the reaction.

1) Number of moles of iron =  1.50 * 10^3 g/ 56 g/mol

= 26.8 moles

If 2 mole of iron III oxide produces 4 moles of iron

x moles of  iron III oxide produces  26.8 moles of iron

x = 13.4 moles

Mass of the iron III oxide = 13.4 moles * 160 g/mol

= 2.1 Kg

2) Number of moles of Al = 2.91 g/27 g/mol

= 0.11 moles

Number of moles of oxygen = ( 5.50  -  2.91 )/32 g/mol

= 0.06 moles

Dividing through by the lowest ratio, the empirical formula is [tex]Al_{2} O[/tex].

3) Number of moles of lead II acetate = 106 g/325 g/mol

= 0.33 moles

If 1 mole of  lead II acetate reacts with 2 moles of lithium chloride

0.33 moles would react with 0.33 * 2/1

= 0.66 moles of lithium chloride

Mass of the the lithium chloride = 0.66 moles * 42 g/mol

= 27.7 g

4) Number of moles of octane =  60.3 g/114 g/mol

= 0.53 moles

2 moles of octane produces 16 moles of carbon dioxide

0.53 moles  of octane produces 0.53 * 16/2

= 4.24 moles

Mass of carbon dioxide = 4.24 moles * 44 g/mol

= 186.6 g/mol

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Liquids has the stronger intermolecular attraction between molecules, Ethyl alcohol and dimethyl ether are functional isomers as they have same molecular formula but different functional groups.

Due to the difference in the electronegativity of C and O, there is a weak dipole dipole attractive force between dimethyl ether molecules. However, in ethyl alcohol, molecules are bound together by an attractive force known as intermolecular H-BONDING, which is significantly stronger than the weak dipole-dipole attraction between ether molecules. Although H-bonding also results from the dipole-dipole interaction, it is significantly more powerful because of the large electronegativity gap between O and H.

Due to the difference in electronegativity between carbon and oxygen, a DIPOLE is produced in dimethyl ether. On the other hand, with ethyl alcohol, you have intermolecular hydrogen-bonding, which is well known to be the strongest intermolecular force of attraction.

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Two 4s electrons and six 3d electrons make up one atom of fe. A fe2 ion would have FOUR unpaired electrons.

1s2 2s2 2p6, 3s2 3p6, and 4s2 3d6 make up the electrical configuration of fe.Thus, there are four unpaired electrons in the third subshell.This demonstrates fe's paramagnetic properties.Both the 3d and 4s orbitals have almost the same energy. It's also important to note that, in contrast to the other orbitals, the third orbital has a single pair of electrons. Iron exists in two valence states, +3 and +2, as was previously mentioned. As a result, when it loses the two 4s electrons, it gets a valency of +2.

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A gas in a closed rigid container exerts a pressure of 1.20 atm at 20.0 °C. when heated, the pressure is 1.50 atm. the temperature of the heated gas is 25 °C

given that :

pressure of the gas P1 = 1.20 atm

temperature of the gas T1 = 20 °C

The pressure of the gas P2 = 1.50 atm

temperature of the gas T2 = ?

according the gay - Loussac law , we get:

P1 / T1 = P2 /T2

T2 = P2 T1 / P1

T2 = (1.50 × 20 ) / 1.20

T2 = 25 °C

the temperature T2 = 25 °C

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Answer:

An acid is a substance that liberates hydrogen ions (protons) when allowed to dissociate in aqueous media. Examples are hydrochloric acid, sulfuric acid, nitric acid, etc, all of which are very strong acids, and ethanoic acid, citric acid, etc, which are weak acids. An alkali generally gives off hydroxyl ions in aqueous media. Examples are sodium hydroxide, potassium hydroxide, ammonia, etc.An acid is a substance that liberates hydrogen ions (protons) when allowed to dissociate in aqueous media. Examples are hydrochloric acid, sulfuric acid, nitric acid, etc, all of which are very strong acids, and ethanoic acid, citric acid, etc, which are weak acids. An alkali generally gives off hydroxyl ions in aqueous media. Examples are sodium hydroxide, potassium hydroxide, ammonia, etc.

Explanation:

An acid is a substance that liberates hydrogen ions (protons) when allowed to dissociate in aqueous media. Examples are hydrochloric acid, sulfuric acid, nitric acid, etc, all of which are very strong acids, and ethanoic acid, citric acid, etc, which are weak acids. An alkali generally gives off hydroxyl ions in aqueous media. Examples are sodium hydroxide, potassium hydroxide, ammonia, etc.

The electrons from the valence sublevel are lost when calcium ionises to produce a calcium ion. Since calcium belongs to Group 2 on the periodic table, its outer shell contains two electrons .

The losing these two valence electrons will be easier for a calcium atom than receiving six additional electrons to complete a full outer shell. As a result, Ca2+ is the most stable calcium ion to form. When calcium turns into an ion, it loses two produce electrons. The Ions always unite in quantities that exactly balance out the positive and the negative charge when they form an ionic bond.

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Pipette 10 ml of stock 1M NaCl into a 100 ml volumetric flask, then add 100 ml of water to the mixture to generate 100 ml of 0.1M NaCl.

The dilution factor is c2/c1 = 1/10, as mentioned before.

The required volume of stock solution (v1) is equal to the dilution factor X the desired volume (v2), or, in more succinct notation,

c2/c1 X v2 = v1.

Each side is divided by v2 to get

c2/c1 = v1/v2, which means

v1 X c1 = v2 X c2.

The volume of a stock solution times its concentration always equals the volume of a diluted solution times its concentration, to put it another way.

In the aforementioned illustration,

v1 = 10 ml, c1 = 1.0 M, and v2 = 100 ml, c2 = 0.1 M. If v1 X c1 = v2 X c2, then the dilution calculation is accurate since 10 X 1 = 100 X 0.1, or 10 = 10, is obtained.

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IUPAC name -Ascorbic Acid (Vitamin C)-(5R)-[(1S)-1,2-Dihydroxyethyl]-3,4-dihydroxyfuran-2(5H)-one, Fruit sugar or D-fructose are other names for fructose-fructose. D-glucose, or glucose.

Early in the 1930s, vitamin C—then known as "hexuronic acid"—was extracted from fruits, vegetables, and the adrenal cortex. After being proved to treat scurvy in guinea pigs, it was renamed ascorbic acid to reflect its anti-scorbutic qualities.

Description. Ascorbic acid, a naturally occurring organic substance with antioxidant qualities, is offered by TCC. C6H8O6 is its chemical formula. It is a crystalline white substance that mixes easily with water to form moderately acidic solutions.

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Hence one molecule of oxygen can be reduced  by one glucose molecule, if electrons are received from only glycolysis

The balanced chemical equation for the conversion of glucose to pyruvate shows that four hydrogen atoms (four protons and four electrons) are also formed:

CH 206 — 2 CH3-C-C-OH + 4H+ + 4e Glucose Pyruvate

Since there could be  4 lectrons and 4 hydrogens  from one molecule of that are from glucose to pyruvate step.

O2 + 4H+  + 4e-  = 2H2O

Hence one molecule of oxygen can be reduced .The method by which glucose is metabolised to create energy is known as glycolysis. It generates water, ATP, NADH, and two pyruvate molecules. It doesn't need oxygen to happen since it happens in a cell's cytoplasm. In both aerobic and anaerobic species, it happens.

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Molecules with functional groups are more reactive as they are polar in nature.

They have higher boiling points and melting points because the interactions among the polar groups causes them to be strongly together  and hence higher energy is required to break the bonds. They are also soluble in water because of hydrogen bonding between the polar bonds of molecules and water.

These can all be easily remembered as the carboxylic acids which have acid functional group and they have higher melting, boiling points. They are also soluble in water and are more reactive than hydrocarbons of same weight. A primary alcohol has hydroxy group attached to primary carbon i.e. the carbon attached to only one carbon. All the options have primary alcohols.

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The solvent is said to be saturated when it has dissolved all the solute it can at a particular temperature.

The relationship between solvents and solutes is an important one in the study of chemistry. In order to understand the dynamics of this relationship, it is important to understand the concept of saturation. When a solvent has dissolved all the solute it can at a particular temperature, it is said to be saturated. In this essay, the significance of saturation in solvent-solute interactions will be discussed in detail.

At the most basic level, saturation is important because it helps to inform chemists of the maximum amount of solute that can be dissolved in a solvent at any given temperature. This information can be used to control the concentration of a solution and to ensure that it is within the desired range for a particular application.

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The Element is a pure substance that can only be separated into two or more simpler substance using chemical changes. elements can not broken down by a chemical reaction.

Elements are pure substances that cannot be transformed into more basic ones by physical or chemical processes. The most basic type of matter, an element has its own set of characteristics. Well-known elements are oxygen, iron, and gold, as examples. Simpler substances cannot be created from elements. Furthermore, no element can be chemically changed into another element. Pure substances are formed by only one kind of particle that may have a fixed or constant structure. An element is a pure material with only one type of atom that cannot be divided into two or more simpler substances through physical or chemical means.

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The phase transition that takes place when the pressure on a pure subsatnce is increased at a constant temperature is liquid to solid.

Raising the pressure increases the melting factor of maximum solids. That's why the melting factor line slopes ahead for maximum substances. Moving from stable to liquid with the aid of using converting the stress: You also can mess around with this with the aid of using searching at what takes place in case you lower the stress on a stable at consistent temperature. At standard conditions as temperature increases, maximum materials extrude from solid to liquid to gas, and at trendy temperature as strain increases, maximum materials change from gas to liquid to solid.

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The pH is 3.35 after 10.00 ml of koh is added when the convenient formula for determining the pH of a buffer consisting of a weak acid and its conjugate base is the Henderson-Hasselbalch formula.

Titrate 50.00 mL 0.10 M HNO(nitric acid, Ka = 4.5 × 10−4) with 0.10 M KOH solution. What is the pH value in the titration flask after adding 25.00 ml of KOH solution.

The balanced equation for the reaction is shown below.HNO2+KOH →KNO2+H2O

Start by determining the amount needed to reach the equivalence point. 0.050 l × 0.10 mol HNO2 1 l × 1 mol KOH1 mol HNO2 × 1 l 0.10 mol KOH × 1000 ml1 = 50 ml = Veq

Titration is in progress when 25 ml of titrant has been added. pKa at pH = 12 veq = 25 ml. Pka = - log4.5 x 10therefore the pH is 3.35 pH.

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