1 moles of an ideal gas are in equilibrium at fixed pressure (e.g. 106 pa) and temperature (e.g. 300 k). 1) what is the derivative of the gas' g with respect to volume for those conditions? at fixed t,p,n dg/dv

For every mole of glucose (C6H12O6) that is metabolized by cellular respiration, this citric acid cycle releases 4 moles of CO2.

Through respiration, which involves consuming oxygen and exhaling carbon dioxide, living beings generate energy. Respiration is a substantial and crucial gas exchange mechanism, it follows. The carbon and oxygen used in breathing are transported via the blood.

The phrase "respiratory system" actually is the process by which food is metabolized to produce energy. Both aerobic and anaerobic respiration are the two types. Aerobic respiration is defined as respiratory that takes place while there is air containing oxygen.

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Citric acid cycle uses free oxygen as the final electron acceptor.O2 is an allosteric activator for citrate synthesis.

The citric acid cycle is a series of chemical reactions that removes high-energy electrons and uses them in the electron transport chain to generate ATP. The presence of O2 in mitochondria releases CO2 into cytosol. One molecule of ATP  is produced per each turn of the cycle. The electron transport chain is the portion of aerobic respiration that uses free oxygen as the final electron acceptor for electrons removed from the intermediate compounds in glucose catabolism. The electrons are passed through a series of chemical reactions with a small amount of free energy used at three points to transport hydrogen ions across the membrane. This contributes to the gradient used in chemiosmosis. As the electrons are passed from NADH or FADH2 down the electron transport chain, they lose energy. The products of the electron transport chain are water and ATP. A number of intermediate compounds can be diverted into the anabolism of other biochemical molecules. such as nucleic acids, non-essential amino acids, sugars, and lipids. These same molecules except nucleic acids can serve as energy sources for the glucose pathway.

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A sample of neon gas exert a pressure of 0.750 atm and exhibit a density of 1.45 g/L wil have temperature at 63°K

temperature of sample of neon gas exert a pressure of 0.750 atm and exhibit a density of 1.45 g/L can be calculate as follows

Calculating the temperature if we knew the density of a gas usually involves combining the formula for density (mass divided by volume) and the ideal gas law (PV = nRT).

ρ = PM/RT, where M is molar mass, mollar mas of neon is 10

from this formula we can conclude

T = PM/ ρR

T =    0.750 atm x 10 g/ mol      

     1.45 g/L x 0.0821 L·atm/mol·K

T = 63°K

Therefore, a sample of neon gas exert a pressure of 0.750 atm and exhibit a density of 1.45 g/L wil have temperature at 63°K

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The mass of ammonium chloride that will be needed is 27 g.

The number of moles of ammonium nitrate in 35 g is,

n = 35 g / 80.044 g/mol

⇒ n = 0.45 mol

The change in enthalpy caused by the reaction of ammonium nitrate in water is,

ΔH = n × ΔHₓₙ

⇒ ΔH = 0.45 mol × 15.7 kJ/mol

⇒ΔH = 7.1 kJ

The number of moles of ammonium chloride required to change in enthalpy of 7.1 kJ is,

n = ΔH / ΔHₓₙ

⇒ n = 7.1 kJ / 14.8 kJ mol⁻¹

⇒ n = 0.48 mol

The molar mass of ammonium chloride is 53,49 g/mol. The mass of ammonium chloride is,

m = 0.48 mol × 53.49 g/mol

⇒ m = 27 g

Hence, the mass of ammonium chloride that will be needed is 27 g.

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The filament electron must have 69.5 keV of energy or more to remove a k shell electron.

When orbital electrons of target atoms are removed from their shell and outer shell electrons fill inner shell vacancies. To fill this vacancy, the outer shell electron releases some of its potential energy as a characteristic photon.

when filament electrons miss all the orbital electrons of the target atoms and interact with the nuclei . The attraction of the filament electron of the nucleus causes it to slow down and change direction. the resultant loss of energy is given off as a brems photon.

The shells involved and named for the shell being filled.

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Divide the number of moles by the molarity in units of moles per liter to get the volume of a solution in liters given the number of moles and molarity.

Given that a solution consists of both a solute and a solvent, its total volume is equal to the sum of the volumes of both the solute and the solvent it contains.

Given the number of moles and molarity, get the volume of a solution in liters by dividing the number of moles by the molarity in units of moles per liter. A solution with 6.0 moles and a molarity of 3.0 moles per liter, for instance, has a volume of 2.0 moles per liter.

The following is the formula to determine a solution's percent volume/volume:

%U/v. Volume of solute/Volume of solution * 100

Determine the required percent v/v

0. 50 m /67 * 100

=7.462

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Answer:1.2L

Explanation:The Correct Answer

According to the given statement is Standard C2H2 formation enthalpy is +224 kJ/mole.

As a result, an exothermic reaction takes place, and if it releases more energy than it absorbs, its enthalpy will be negative. Think of this as a portion of the reaction's heat evaporating (or being eliminated). Because endothermic reactions take or utilize more energy than they generate, they have positive enthalpies.

Enthalpy is a characteristic or state variable which mirrors energy; it shares energy's dimensions and is quantified in joules and ergs as a result. Enthalpy's value is purely influenced by a system's composition, environment, and physical properties—not by its past.

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vapour pressure easily measured chemical volality

volality is work by a substances vapour pressure.

Evaporation is a unit operation .

Substance with higher vapour pressure will vaporizer more readily at a given temperature than substances with lower vapour pressure.

Substance with higher vapour pressure will vaporizer more readily at a given temperature than substances with lower vapour pressure.

It is more used by chemist and scientists to know about the chemical concentration in the air .

It is more used by chemist and scientists to know about the chemical concentration in the air .

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In the democratically run Philippines, everyone has the right to vote. This organization is intended to be constitutionally independent of the executive, legislative, and judicial branches of government in order to ensure the holding of free, fair, and honest elections.

Each voter is allowed one vote during the election period. A voter may split their ballot. There is no second round of voting, and the president and vice president may be from different political parties. The candidate with the most votes wins the job. The President serves as the nation's head of state and government as commander-in-chief of the Philippine Armed Forces. As the chief executive, the President is in charge of all executive offices, bureaus, and departments. one of the three branches of government

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By testing an unknown CuSO₄ solution's absorbance with a Colorimeter The concentration on the horizontal axis of the graph can be calculated by finding the absorbance of unknown on the vertically axis of the graph.

Concentration is the amount of a substance in a particular space. Another definition of concentration is the proportion of the solute to the fluid or whole solution. Usually, mass per volume is used to define concentration.

In a concentrated solution, the solute is present in the solvent at high quantities. Examples include orange juice, brine solution, and dark tea. To make a diluted solution, large amounts of the solvent are combined with little amounts of the solute. Examples include salt solution and light-colored tea.

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The oxygen in the air that we breath is  the solute in a hom---ogeneous gas mixture. And this is option C in the question.

We know that oxygen is part of the gases that are involved in respiration. In the respiration of the animals, animals breath in oxygen and then breath out carbon dioxide. However, the oxygen is only one of the components of the air.

We have to know that air is a mixture of gases thus there are so many gases that compose air we can then say that the air is an example of a hom--ogeneous gas mixture since there are so many gases that are combined here.

Thus, the gas mixture can be seen as solution that does contain a mixture of gases and oxygen is one of those gases that are found in the mixture.

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Mn is in the +7 state in KMnO4, which is a potent oxidizing agent. While it will operate as an oxidizing agent in neutral and basic media, there is a change of 5 electrons in acidic media.

The electronegative properties of the elements increase with the oxidation states of the atoms. Permanganate is a good oxidizing agent because of this.

While gently swirling the solution in the flask, the heated solution is titrated against a solution of potassium permanganate. Oxalic acid initially causes KMnO4 to lose its purple color. The conclusion is revealed by the appearance of permanent pink color.

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In an allegory, Hamlet describes the world as "an un-weeded garden," drawing attention to the source of their melancholy.

Simile to compare this same world to a garden where weeds had taken over as well as begun to multiply. In such a double metaphor, Polo.nius refers to Ophelia as a baby, implying that she was naïve to believe Hamlet's affections ("tenders") toward her are genuine whereas they are,, throughout fact, counterfeit silver coins.

Hamlet considers de.ath versus su.icide, comparing the mis ery and harsh ness of life even against possibility of a worse option.

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Some people practice brining their turkey. This means they let it soak in a solution overnight. The solution diffuses into the turkey. This means that the turkey is placed into a hypertonic solution.

A hypotonic solution is described as a solution that has lower osmotic pressure than another solution to which it is compared.

The concept of tonicity helps us understand that the saltwater we use to brine the turkey is typically considered hypertonic solution because it has a greater concentration of solutes than the liquid found inside the cells.

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The atomic number and the number the protons in an atom are the two characteristics that can be utilised to identify an element. Although it can vary depending just on atom in question.

An element is a compound that cannot be changed into another substance. The roughly 100 elements each have a different type of atom. Every object in the universe has atoms out of at least one element and maybe more. The periodic table contains a list of every known element, with similar elements being grouped together.

Russian chemist Dmitri Mendeleev created the framework for the modern periodic table in 1869, leaving blank spots for elements that were yet to be identified. He organised the elements into groups based on its atomic weight, rearranging them if he found that they simply does not fit.

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The percentage error is 102 whenever the efficiency for neutralizing sodium hydroxide with hydrochloric acid drops to -57 kj/mol.

Turmeric encourages healthy skin, improves skin health, aids for digestion, fights acid reflux and acidity, has antibacterial properties, prevents leaky gut, battles candida, and helps the body absorb nutrients. HCL is additionally created synthetically for use in a range of commercial and academic settings. It encourages healthy skin, promotes skin health, helps in digestion, fights acid reflux and acidity, has antibacterial properties, prevents leaky gut, battles candida, and helps the body absorb nutrients.

According to the equation hydrochloric acid is -57 kj/mol,

H⁺+NH₄OH→NH₄⁺+H²O    ΔH=-51kJ mol

NH₄OH→NH₄⁺+OH⁻      ΔH₁=?

H⁺+OH⁻  →    H₂O          ΔH₂=51kJ mol

ΔH=ΔH₁+Δ₂H

ΔH₁=-51-51

ΔH₁= 102

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The easy and sustainable way for campuses to reduce waste is recycle bin.

Thus the correct answer is recycling bins.

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To solve such this we must know the concept of chemical reaction and dehydration reaction. Therefore, dehydration means to remove water from a compound.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Dehydration is a chemical process in which removal of water molecules from a compound take place using suitable reagent. The best reagent for dehydration can be any reagent that is water loving.

Therefore, dehydration means to remove water.

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The limiting reactant in (a)  6 Cl2 (b) 10Cl2 (c) 20 Cl2

In the field of chemistry, a limiting reactant can be described as such a reactant molecule, that get consumed faster than the other reactants in a reaction and hence becomes the reason for the reaction to come to a stop.

In the reaction, 2Cr(s) + 3Cl2(g) → 2CrCl3(s), two atoms of Cr and 3 atoms of Cl2 are required for the reaction to occur. Hence, in all the options mentioned, Cl2 becomes the limiting agent as it is consumed in a larger amount in the reaction.

For the reactions to proceed, more Cl2 atoms need to be added.

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The freezing point of a solution of 40.0 g methyl salicylate, C₇H₆O₂, dissolved in 800. g of benzene, C₆H₆ is 3.49°C

Since the problem statement gives the solution, the solute in the solution affects some of the properties of the whole system. These properties are called collective properties. To calculate the freezing point of a solution, use the freezing point depression equation expressed as:

ΔT = kf(m)i

where ΔTf represents the freezing point depression, kf is the constant for benzene, 4.90 C/m, i is the Van't Hoff coefficient, which is 1 because certain solutes do not dissociate into ions, and m is the molarity of the solution. Calculate as follows:

ΔT = kf(m)i

ΔT = 4.90 (40.00 / 0.800 (122.13)) (1)

ΔT = 2.01°C

ΔT = T - Tfs

Tfs = 5.5 - 2.01

Tfs = 3.49°C

Therefore, The freezing point of a solution of 40.0 g methyl salicylate, C₇H₆O₂, dissolved in 800 g of benzene, C₆H₆ is 3.49°C

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A gated channel that allows sodium ions to enter the cell is always open.

This starts offevolved with the opening of voltage-gated Na+ channels within the neuron membrane. due to the fact the concentration of Na+ is higher outside the mobile than inside the cellular via a component of 10, ions will rush into the cell, driven by way of each the chemical and electric gradients.

Voltage-gated sodium channels play a vital role in the initiation and propagation of motion potentials in neurons and different electrically excitable cells consisting of myocytes and endocrine cells.

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The correct ksp expression for Cr(OH)₃(s) dissolving in water is ksp = [ Cr³⁺] [ OH⁻ ]³.

The ksp is called as the solubility product constant. The solubility product constant is the equilibrium constant for the solid substances that is dissolve the aqueous solution. the symbol for the solubility product constant is given as : ksp.

The equation for the Cr(OH)₃ is given as :

Cr(OH)₃ ⇄   Cr³⁺   +   3OH⁻

The ksp expression is given as :

ksp = [ Cr³⁺] [ OH⁻ ]³

Thus,  The correct ksp expression for Cr(OH)₃(s) dissolving in water is ksp = [ Cr³⁺] [ OH⁻ ]³.

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Statement which is incorrect  concerning interaction between two atoms is that as atoms get closer together, their electrons attract each other.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

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Carbonyl oxygen is protonated, the carbonyl carbon is added with a nucleophile, and the old nucleophile is deprotonated.

If mistreated, ketones can harm your body by upsetting the chemical equilibrium of your blood. Your body will attempt to eliminate excess ketones through urine because it cannot handle them. They eventually accumulate in the blood.

When your cells run out of glucose, your body turns to fat for energy. Ketones, an acid produced as a result, can accumulate in you blood and urine. It's normal to have some ketones throughout your pee. However, excessive quantities of ketone in your urine might indicate because your body is overly acidic.

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The particle at point "A" are locked into place and can only vibrate. and At point 'D' on the graph, the substance is completely transformed to a gas. is correct option.

What is vibration?
A mechanical phenomenon called vibration causes oscillations to take place around an equilibrium point. The word is derived from vibrationem in Latin ("shaking, brandishing"). The oscillations can be random—like a tyre rolling over gravel—or periodic, like the swinging of a pendulum. Vibrations like those made by a tuning fork, a woodwind instrument's or harmonica's reed, a mobile phone, or a loudspeaker's cone can be pleasing to the ear. However, vibration is frequently undesirable as it wastes energy and produces unwelcome sound. For instance, the vibrational motions produced by running engines, electric motors, or other mechanical device are typically undesirable. Unbalances in the rotating components, uneven friction, or gear teeth meshing could all be to blame for these vibrations.

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Nitrogen's steric number will be equal to 4 because it makes 3 covalent bonds and has 1 lone pair. This means that one s and three p-orbitals will combine to generate a total of 4 hybridized orbitals.

Steric number is defined as both the total number of lone pairs attached and the total number of atoms that are directly bound to a central metal atom.

Steric Number = (number of lone electron pairs ) + (number of atoms bonded to the central atom)

Ammonia is sp3 hybridized. Four hybrid nitrogen orbitals are created when a 2s orbital and three 2p orbitals join.

Thus, nitrogen's steric number will be equal to 4 because it makes 3 covalent bonds and has 1 lone pair. This means that one s and three p-orbitals will combine to generate a total of 4 hybridized orbitals.

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3.36ml volume of of 0.585 m KCL solution is needed to make 0.196m kcl solution.

Molarity is a measure of the concentration of a chemical species, in particular of a solute in a solution in terms of amount of substance per unit volume of solution. The unit for molarity is the number of moles per liter. It has the unit symbol mole/l.

here, 100ml of 0.196m Kcl solution made. Moles of the solution is given by the expression,

Moles = Molarity . volume (in liter)

Moles in 100ml 0.196 m Kcl solution= Molarity . volume in liter

                                                            = 0.196 . 0.1

                                                            = 0.0196 mole

We know that 1ml is equal to 0.001L. By converting this value and put it in the expression we get the value of mole.

Volume= moles/molarity

Volume of the 0.585m KCl solution = moles /molarity

                                                              = 0.0196/0.585 L

                                                              =0.033504 L= 3.3504 ml

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If the proportions of the corresponding sides and angles of two shapes or solids match, then the forms or solids are said to be comparable. Keep in mind that expanding a form results in a comparable shape.

One of the four basic states of matter is solid. The least energetic molecules are those that are tightly packed together and make up solids. A solid's structural stiffness and resistance to surface forces are its defining characteristics.

Because the energy of atoms lowers when they occupy a reasonably organized, three-dimensional structure, a solid develops from a liquid or gas. Solids differ from liquids and gases in that they have particular properties.

Thus, If the ratio of the lengths of the respective radii, heights, base lengths, widths, or any other dimensions of two solids is the same, they are said to be comparable.

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The volume of the Naoh that is required was =4.074

What is the use of the buffer solution ?

A buffer is an aqueous solution made up of a weak acid and its salt (acid buffer) or a weak base and its salt (base buffer) (basic buffer). When a small amount of strong acid or base is added to it, its pH changes very little, and it is thus used to prevent the pH of a solution from changing.

Buffer solutions are utilised in several chemical applications. Blood is one example of a natural buffer solution. The natural pH of human blood is 7.4. Many people suffer from severe anxiety and alkalosis. Alkalosis is a condition in which the blood pH is abnormally high. The opposite situation is known as acidosis, which occurs when the pH of the blood exceeds 7.4.

naoh+nah2po4 ------------> h2o+na3po4

pka=3.39

7.30=3.39+(log(h2o/naoh)

log(h2o/naoh)=7.30-3.39

=3.91

=10^log(h2o/naoh)=10^3.91

=4.074

The volume required was=4.074

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If 87. 5 percent of a sample of pure 131 I decays in 24 days, what is the half-life of 131 i is 8 days.

The rate constant expression is given as :

k = 2.303 / t log a / a-x

where, t = 24 days

a = 100

a-x = 100 - 87.5 = 12.5 g

k = 2.303 / 24 log 100 / 12.5

k = 0.0866/ day

now, the t1/2 , half life is given as :

k = 0.693 / t1/2

t1/2 = 0.693 / 0.0866

t1/2 = 8 days.

Thus, If 87. 5 percent of a sample of pure 131 I decays in 24 days, then the half-life of 131 i is 8 days.

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