0.204 moles of xe gas
Using the ideal gas formula, PV=nRT
n = PV/ RT
= 5.0 L × 1.0 atm / 0.0821 × 298 K
= 0.204
n = n Xe + n N₂
0.204 = n Xe + 1.0 mol
n Xe = 0.204 moles
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Which option best describes an ionic bond?.
An ionic bond involves a metal that transfers one or more electrons to a nonmetal.
Ionic bond, also called electrovalent bond, is a type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence or the outermost electrons of one atom are transferred permanently to another atom.
Atoms form compounds so that they achieve stability. Compounds are formed when atoms form chemical bonds with other atoms. These bonds which can either be covalent or also be ionic due to the interactions of the valence electrons of the atoms.
Ionic bonds are formed when atoms transfer electrons from their valence shells to other atoms. This transfer is usually observed when metals transfer electrons to nonmetals. Since metals transfer electrons, they become cations. Nonmetals, on the other hand, form the anions.
Complete question;
Which of the following best describes an ionic bond?
(a) An ionic bond involves two metals that exchange electrons.
(b) An ionic bond involves two nonmetals that share electrons.
(c) An ionic bond involves a metal that shares electrons with a nonmetal
(d) An ionic bond involves a metal that transfers one or more electrons to a nonmetal
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what amount of solid naoh must be added to 1.0 l of a 0.10 m h2co3 solution to produce a solution with [h ]
Carbonic acid, or H2CO3, is a chemical compound made up of the elements hydrogen, carbon, and oxygen. When carbon dioxide (CO2), its anhydride, dissolves in water, a small amount of it is formed.
What is carbonic acid?Hydrogen, carbon, and oxygen combine to form carbonic acid (H2CO3). When carbon dioxide (CO2), its anhydride, dissolves in water, it is created in trace amounts.CO2 + H2O ⇌ H2CO3
Just CO2 molecules that are not fully hydrated constitute the dominant species. The two salt series hydrogen carbonates, containing HCO3, and carbonates, containing CO32, can be formed from carbonic acid, which can be thought of as a diprotic acid.H2CO3 + H2O ⇌ H3O+ + HCO3−
HCO3− + H2O ⇌ H3O+ + CO32−
However, the differing speeds of certain of the relevant processes as well as their reliance on the system's pH determine how acidic or basic carbonic acid behaves. For instance, with a pH lower than 8, the main reactions and their corresponding relative speeds are as follows:CO2 + H2O ⇌ H2CO3 (slow)
H2CO3 + OH− ⇌ HCO3− + H2O (fast)
The subsequent reactions are crucial above pH 10:
CO2 + OH− ⇌ HCO3− (slow)
HCO3− + OH− ⇌ CO32− + H2O (fast)
All of the aforementioned equilibrium processes have a significant pH range (8–10).To Learn more about carbonic acid refer to:
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What is bulk matter in science?.
Matter that can be seen, handled, or measured is referred to as matter in bulk. Any given material is either a solid, a liquid, or a gas depending on its temperature and pressure.
What does a matter mean in chemistry?Matter is everything that occupies space and appears to have mass; in plenty of other words, matter seems to be the "stuff" that now the cosmos is made of. The basic constituents of all stuff are called elements.
What exactly does it mean to utilize an example of matter?A substance that has a certain mass and volume over space and is commonly referred to as matter. Pens, notebooks, toothbrushes, water, milk, and automobiles are a few examples of matters.
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Can you put hot food on pewter?.
Food can be kept hot on pewter, yes. Lead-free and secure to use, modern pewter. It is primarily comprised of tin, with some antimony and copper. based on one manufacturer.
All types of food and drink can be used with the goods, which are guaranteed to be lead-free. The remaining material in most contemporary pewter is a combination of food-safe copper and antimony. If you avoid acidic foods like those made with tomatoes, vinegar, etc. Lead-free may occasionally be a little amount of silver that is also safe to eat. Lead concentration in meals can increase as a result of lead leaching from the pewter container, especially when eating more acidic foods.
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Write balanced half-reaction for the oxidation of aqueous hydrogen peroxide (H,02) to gaseous oxygen (02) in acidic aqueous solution Be sure to add physical state symbols where appropriate
First, the reduction of gaseous oxygen to aqueous hydrogen peroxide is:
O2 (g) → H2O2 (l)
when this reaction is in an acidic aqueous solution, we need to balance H on both sides so we will use H+ on the left side.
O2(g) + H+(aq) → H2O2(l)
now we have 1 of H atom on the left side and 2 on the right side so we will put 2H+ on the left side instead of H+:
O2(g) + 2H+(aq) → H2O2(l)
now we need to balance the 2 positive charges of 2H+ so, we will put 2 e- on the left side:
O2(g) + 2H+(aq) + 2 e- → H2O2(l)
and this is the final balanced equation which has an equal no. of atoms on both sides:
2 of O atom, 2 of H atom on both sides.
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when a hydrochloric acid solution is combined with a potassium hydroxide solution, an acid-base reaction occurs. write a balanced molecular equation for this reaction. write a balanced molecular equation for this reaction.
Due to the fact that it produces H+ in an aqueous solution, hydrochloric acid is an acid. Due to the fact that it releases OH in an aqueous solution, potassium hydroxide is a basic.
Does potassium hydroxide hurt people?
A caustic substance is potassium hydroxide. It can cause significant harm to tissues if it comes into touch with them, including burning or ulceration. This article concerns toxicity caused by ingesting, touching, or using goods containing potassium hydroxide.
KCl(aq) + H2O = HCl(aq) + KOH(aq) (l)
How may potassium hydroxide benefit the skin?
Potassium hydroxide, also known as lye, is a highly alkaline chemical that is used sparingly in cosmetics to adjust the pH of the final product. It is also employed as a cleaning agent, most frequently in products that are pure soaps or soap hybrids.
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How do we balance a chemical equation 4 marks?.
To balance a chemical equation, place coefficient as needed in front of the symbols or formulas of the elements. So the same number of each type of atom occurs in both reactants and products.
Steps to be followed are-
(1) Write down the chemical reaction in the form of word equation, keeping all the reactants on left hand side and keeping products on right hand side.
(2) Write all the symbol and formula of all reactants and products in word equation.
(3) Balance the whole equation by multiplying the symbols and formula by smallest possible figures.
Same number of each and every atom, of same type occurs in both reactants and products.
Once all the individual elements are balanced, then the total number of atoms of each element on the reactant and product side are compared once again after balancing. If there are no inequalities, the chemical equation is said to be balanced.
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be sure to answer all parts. write structural formulas for all the isomeric nitrotoluenes. ortho derivative draw structure ... meta derivative draw structure ... para derivative draw structure ...
Create structural formulas and give all the isomeric compounds respectable names (a) Nitrotoluenes: (a) To the methyl group, the nitro group may be ortho, meta, or para.
What is the purpose of nitrotoluene?
In the manufacturing of pigments, antioxidants, agricultural chemicals, and photographic chemicals, nitrotoluene is typically used. For the purpose of detecting explosives, ortho- and para-mononitrotoluene can be utilised as detection taggants.
How is nitrotoluene produced?
Fractional distillation is a method that can be used to separate the combination of p-nitrotoluene and o-nitrotoluene. Thus, benzene is changed into p-nitrotoluene by first changing it into toluene, which is then changed into a combination of o-nitrotoluene and p-nitrotoluene. Finally, the mixture is separated into its component parts by fractional distillation to produce p-nitrotoluene.
Briefing
Formula of p-nitrotoluene?
CH3C6H4NO2
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5000dm3 of Carbon (iv)oxide
molecules
are absorbed by the leaves
of a tree. How many moles and how
many grammes of Carbon (iv)oxide
does this represent? (molecular
volume of a gas at STP = 22.4dm3)
113.610×10³moles of Carbon dioxide.
How does molar mass work?A substance's molar mass is its mass in grams per mole of the compound. A mole is the measurement of the quantity of atoms, molecules, or ions in a substance. A mole is 6.022 1023 molecules of any given substance.
Avogadro's number of molecules (molecular compound) or formula units is found in one mole of a compound (6.022 x 1023) (ionic compound). You can determine the mass of 1 mole of a compound by looking at its molar mass. In other words, it provides the amount of grams in a compound per mole.
1dm³ = 1000ml
5000dm³ = 5000000ml
5000dm³ = 5×10⁶ml
5×10⁶ml = 5×10⁶g
CO₂,
Molar mass = 44.01g/mol
No of moles = 5×10⁶/44.01
No of moles = 113.610×10³moles.
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Why might Karl Marx's ideas be criticized?.
While some detractors emphasize the Marxian critique of capitalism, others contend that the Marxist economic system is untenable.
Why was communism appealing to Karl Marx?Marx thought that capitalism, which places a premium on profit and private property, results in societal inequality. In order to achieve this, he worked to create a system that would lead to a society without classes, in which everyone would benefit from the fruits of labor and the state would hold absolute power over all assets.
What was the view of capitalism held by Karl Marx?Capitalism was criticized by Marx as a system that alienates the general populace. He argued that although if people manufacture goods for the market, it is market forces that ultimately determine how things turn out.
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When a nonmetal bonds with a nonmetal:
A. electrons are shared.
B. a covalent bond is involved.
C. a molecular compound forms.
D. All of the above are true.
E. None of the above are true.
It is appropriate to select option d. Because electrons are shared, a molecular compound develops, resulting in a covalent bond. A chemical bond is a covalent bond, commonly referred to as a molecular bond.
that involves atoms trading off pairs of electrons. The stable equilibrium of the attractive and repulsive forces between atoms that occurs when they share electrons is known as covalent bonding. These electron pairs are also referred to as shared pairs or bonding pairs. The electron is a subatomic particle with the symbol e or with an electric charge of one elementaryly negative charge. Due to their lack of known components or substructure, electrons, which are part of the first generation of the lepton particle family, are typically considered to be elementary particles.
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how are ion-dipole interactions able to break apart the relatively strong ionic bond when an ionic solute dissolves into a polar solvent?
Ion - dipole attraction are weaker than ionic bond. A large number of ion - dipole attractions can act collectively to disrupt on ionic bond.
An ion-dipole interaction is the intermolecular force of attraction between a charge ion (cation or anion) and a molecule. It is found commonly in the solution where ionic compounds dissolve in polar solvents.
onic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.
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increasing atmospheric concentrations will lead to enhanced rock weathering, transport of more dissolved solids to the ocean, and ultimately the formation of carbonate minerals. does this process represent a positive or negative climate feedback?
Climate exchange feedbacks are important inside the know-how of world warming due to the fact comments techniques expand or diminish the impact of each climate forcing, and so play an important element in figuring out the climate sensitivity and future weather nation.
Climate feedback tactics which could both expand or reduce the results of weather forcings. A remarks that increases an preliminary warming is known as a positive feedback. A comments that reduces an preliminary warming is a negative feedback. Clouds.
Forcing denotes an outside have an impact on on a feature of the weather machine. instance: multiplied emission from the solar results in an increase of the temperature. comments denotes the response of the climate system to the forcing which, in return, results in a change in the forcings.
The expanded formation of clouds as a result of temperature growth is an instance of poor feedback. Poor weather remarks is any method where climate remarks decreases the severity of a few preliminary alternate. Some initial alternate reasons a secondary exchange that reduces the impact of the preliminary exchange.
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What are 4 types of mass media?.
There are different types of mass media such as Print Media, Digital Media, Broadcast Media, and New Media, amongst others.
Mass media refers to a various array of media technologies that reach a massive target market through mass communication. The technologies thru which this verbal exchange takes place include a selection of outlets. Broadcast media transmit information electronically through media together with movies, radio, recorded song, or tv.
The means of communication that attain huge numbers of humans in a brief time, such as television, newspapers, magazines, and radio.
Mass media method generation this is supposed to reach a mass target audience. it's miles the number one way of conversation used to reach the enormous majority of the general public. The maximum commonplace platforms for mass media are newspapers, magazines, radio, tv, and the Internet.
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2.00 ml of a 0.02 m io3- solution is mixed with 2.00 ml 0.01 m so32- solution and 6.00 ml deionized water in a test tube. the concentration of so32- in the final solution is
The final solution would include 0.64 mol/L of so32-, which is the concentration in the solution.
What is the plain meaning of concentration?Concentration both a action or process as well as a state. more specifically: focusing on a particular object. My focus is being disrupted by all that noise. : a major or region of concentration within a major.
What does a scientific concentration entail?The quantity of a component, such as salt, that is present in a specific volume of tissue or fluid, such as blood, according to scientific definition (KON-sen-TRAY-shun). When there is less water available, the material becomes more concentrated.
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pent-1-ene hcl draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. add charges where needed. electron flow arrows should start on the electron(s) of an atom or a bond and should end on an atom, bond, or location where a new bond should be created.
Free radicals are atoms or molecules that have an unpaired electron.They are highly reactive organisms that are created by the application of light or heat. Bonds can be created by donating the unpaired electron.
What are the main organic products?By applying the Markovnikov Rule, we may conclude that when more hydrogen is added to carbon, the main product will result. This shows that when hydrogen is supplied to carbon-1, which has a larger concentration of hydrogen, and bromine is added to carbon-2, the predominant outcome will be 2-bromopropane.
What offers elimination as its primary product?Depending on the type of elimination reaction, Saytzeff (a more substituted alkene) or Hofmann product (a less substituted alkene) are the principal products.
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a certain radioactive isotope has a half-life of 10,000 years. if the ratio of the parent to the daughter product is 1:3, (a) how many half-lives have elapsed? (0.5 pt); (b) how old is the rock containing the radioactive material?
Given half-life = 10,000 years
as parent and subsidiary are 1:3
It has passed 2 half-lives
At first half-life, parent-isotope reduced to 4.50% in T504 4
Ratio = 25/75 = 1/3
20,000 years
That was 20,000 years ago and is radioactive.
After another half-life, the number of remaining parent atoms approaches zero. Based on this principle, geologists can count the number of parent atoms relative to daughter atoms in a sample to determine the half-life that has elapsed since the mineral grain first formed.
Aeon is the largest interval of geological time lasting hundreds of millions of years. On the top timescale, we see that the Phanerozoic is the youngest ion beginning more than 500 million years ago. Ions are divided into smaller time intervals called epochs.
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Describe the difference between burning magnesium and burning methane in terms of the products.
When methane burning or magnesium burning they react with oxygen to form compounds and a lot of energy is produced. Methane produced carbon dioxide and water, while magnesium produced oxide.
When magnesium is is burnt, they form oxides of magnesium:-
2Mg + O₂ → 2MgO
When methane is burnt, they form carbon dioxide and water:-
CH₄ + 2O₂ → CO₂ + 2H₂O
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What is the charge of Li 1?.
Li+ have 2 electrons and 3 protons so it have charge equal to a proton which is opposite of the charge on a electron and equal to 4. 8×10^−10esu
What is electronic charge ?Charge is a physical quality that gives matter in an electromagnetic field a force. Positive or negative electric charges are both possible. It is deemed neutral or uncharged if there is no net electric charge present.
3 protons and 3 electrons make up an atom of lithium. It is capable of losing an electron, turning it into an ion. Now that it has more positive protons than negative ones, it is positively charged overall. Consequently, it is a positive ion.Learn more about Electronic charge here:
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About one-third of the toxic metal, mercury (Hg), is released into the air from natural sources, such as rocks, soil, volcanoes, and the ocean. The remaining two-thirds comes from ____.
a. waste from livestock
b. mercury-rich plants
Selected: c. automobile exhaustThis answer is incorrect.
d. human activities
e. airplane exhaustd. human activities
About one-third of the toxic metal, mercury (hg), is released into the atmosphere from natural sources such as rocks, soil, volcanoes, and the ocean. the remaining two-thirds comes from human activities. option A is correct.
First, mercury is naturally emitted into the air from volcanoes, rock weathering, forest fires, and soil. Second, mercury is released into the air by burning fossil fuels and municipal or medical waste.
Mercury persists in the environment for long periods of time by cycling back and forth between air and soil, changing chemical forms in the process. The atmospheric lifetime of inorganic elemental mercury is estimated to be up to two years, while organic methylmercury can remain in soil for decades. Mercury is never removed from the environment; it just moves to other places and eventually gets buried under soil and sediments
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Which element is malleable in period 3?.
Aluminum is the metal in period 3 which is highly malleable in nature.
Another typical element found on earth, aluminium makes up roughly 8% of the planet's crust. The material's smooth surface and silvery-white color make it easy to identify. Innumerable products, including as airplanes, space shuttles, high-speed trains, building components, and the power lines, cellphones, computers, and more, use aluminum because of its amazing lightness and ability to withstand corrosion.
Aluminum is a remarkably ductile substance that can be stretched between the 50 and 70 percent of the way before snapping. It is also very flexible and has a lower melting point of 660°C, which make it easy to work with.
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Enter a balanced equation for the reaction between hydroiodic acid and lithium hydrosulfite.
The balanced equation is :
HI(aq) + LiHSO₃(aq) → SO₂(g) + H₂O(l) + LiI(aq).
A chemical reaction is a method wherein one or more materials, also called reactants, are transformed into at least one or more special substances, called merchandise. Materials are both chemical elements or compounds.
A few synthesis reactions can result in more than one product. Photosynthesis is one of the maximum important chemical reactions on earth. It allows plants and a few microbes to transform water and carbon dioxide gas into storable sugar and oxygen.
Chemical compounds are made from atoms of different elements, joined collectively through chemical bonds. A chemical synthesis normally involves the breaking of existing bonds and the formation of recent ones.
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How would the force between a negative and poitive charged metal heet change if the experiment wa done with twice a much charge on each plate
Charges that are similar repel each other while charges that are dissimilar attract.
What is electric charge?The basic property of matter carried by some elementary particles that governs how the particles are affected by an electric or magnetic field is known as electric charge. Electric charge occurs in discrete natural units and is neither created nor destroyed.When an object is rubbed, it receives a charge. Because of the rubbing, the objects gain or lose electrons. It becomes positively charged when it loses electrons. The object becomes negatively charged when it attains an electrons.When electrons are transferred to or removed from an object, an electrical charge is produced. Because electrons have a negative charge, adding them to an object causes it to become negatively charged as well. An object becomes positively charged when electrons are removed from it.To learn more about electric charge refer to :
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A subunit of an organic compound that confers particular chemical and physical properties is termed.
A substituent is an organic compound's component that gives specific chemical and physical capabilities.
What defines as a chemical?Any chemical is any substance whose breakdown is known. A chemical constantly consist of a single "substance," or put it another way. Water is one of the substances found in nature. Chemical, dimethylformamide, methanol, hexane, quinoline, xylene, benzene, ethyl acetate, thf, and ethyl ether are examples of flammable liquids.
What is chemical made of?Chemicals are another name for matter, which is everything composed of atoms. Chemicals are really the structure you can create using atoms as the building pieces in a LEGO set. They could be solid, liquid, or gas in any form. Chemicals may be a combination or a pure substance.
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when silver nitrate is added to an aqueous solution of magnesium chloride, a precipitation reaction occurs that produces silver chloride and magnesium nitrate. when enough agno3 is added so that 18.5 g of mgcl2 react, what mass of the agcl precipitate should form?
Silver chloride will precipitate as a result of this reaction, along with a calcium nitrate solution.
What uses does magnesium chloride have?Low levels of mag in the blood can be prevented and treated with the over-the-counter drug magnesium chloride. Magnesium is necessary for the healthy operation of the heart, muscles, bones, neurons, and cells. This drug is offered as an injectable solution, but Medicare does not cover it.
Does magnesium chloride benefit people?Men, women, kids, and pregnant women can all use magnesium chloride without any ill effects. Calcium, another necessary mineral, can be processed and absorbed by the body with the aid of magnesium chloride. Magnesium has also been demonstrated to support strong bones, a healthy heart, and appropriate blood pressure levels.
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How is Marxism criticism used?.
Marxist criticism situates a piece of literature within the framework of class and underlying class presumptions.
What sort of criticism would you use?Get over yourself and quit being such a downer all the time, please! Include advice on what the person should do differently in the future. For instance, "I would appreciate it if you were able to approach constructive criticism with a positive attitude instead of believing I'm incorrect all the time.
Is criticism inherently harmful?While criticism is required for improvement, it's crucial to be able to do so without being unfavorable. Although some people view criticism as a filthy word, keep in mind that nothing in life is flawless, and that the only way to make something better is to identify and fix its flaws.
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for each molecule of glucose that is catabolized in glycolysis and the citric acid cycle, how many nadh molecules are produced?
for each molecule of glucose that is catabolized in glycolysis and the citric acid cycle, produced 10 NADH.
Each glucose molecule entering glycolysis produces two pyruvate molecules 2 ATP, and 2 NADH, thus doubling the number of pyruvate entering the citric acid cycle. The citric acid cycle cannot occur in the absence of oxygen, In the absence of oxygen, the pyruvate of converted to lactic acid which is broken down and excreted by the cell.
Pyruvate is a three-carbon molecular product of glycolysis. When oxygen is present in the cell, pyruvate is decarboxylated (C- is removed mediated by the pyruvate dehydrogenase complex) and two oxygen atoms are included to form carbon dioxide. A redox reaction also occurs when coenzyme A binds to form acetyl-CoA and NAD+ is reduced to NADH.
Each glucose molecule entering glycolysis produces two pyruvate molecules, thus doubling the number of pyruvate entering the citric acid cycle.
Therefore, the number of each ATP, NADH, and FADH2 molecule produced in the citric acid cycle is doubled. Therefore, in the citric acid cycle, one glucose molecule produces two ATPs, six NADHs, and two FADH2s.
Thus, 2 ATP, 6 NADH, and 2 FADH2 will be produced in the citric acid cycle by one glucose molecule
So, if the whole process of cellular respiration is summarized then the result is:
Glycolysis: 1 glucose → 2 pyruvic acid + 2 ATP + 2 NADH
Oxidative decarboxylation: 1 pyruvic acid → 1 acetyl-CoA + 1 NADH
Since 1 glucose produces 2 pyruvic acid, then from the oxidative decarboxylation stage:
2 pyruvic acid → 2 acetyl-CoA + 2 NADH
Krebs cycle: 1 acetyl CoA + 1 oxaloacetic acid → 1 citric acid + 3 NADH + 1 FADH2 + 1 ATP
Since 1 glucose produces 2 pyruvic acids and 2 pyruvic acids produce 2 acetyl-CoA, then from the Krebs cycle stage:
2 acetyl CoA + 2 oxaloacetic acid → 2 citric acid + 6 NADH + 2 FADH2 + 2 ATP
From the three stages of cellular respiration above, it can be concluded that one molecule of glucose can produce a total of 4 ATP, 10 NADH, and 2 FADH2.
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The periodic table gets it's shape from
a. the properties of the elements
b. no answer text provided
c. the number of protons in each element
d. the age of each elements discovery
how many moles of gas are in 30.0 l of a contained tube with a temperature of 300.k and pressure at 200. atm? use r
Answer:
234.61 mol
Explanation:
According to the Ideal Gas Law:
PV=nRT
P= 200 atm
V= 30.0 L
T= 300 K
R= 0.0821 [tex]\frac{(atm)(L)}{(mol)(K)}[/tex]
[tex]n=\frac{PV}{RT}[/tex]
[tex]n=\frac{(200atm)(30.0L)}{0.0821\frac{(atm)(L)}{(mol)(K)}(300K)}\\n=234.61 mol[/tex]
ubiquitin interacts with proteins with either covalent or non covalent interactions. which of the following uses non-covalent interactions to interact with ubiquitin
Ubiquitin interacts with proteins with covalent interactions. Ubiquitin-binding domains (UBDs) that create brief, non-covalent contacts with either ubiquitin or ubiquitin chains recognize and process ubiquitin signals in non-covalent ubiquitination.
What is Ubiquitin?
A 76-amino acid-tiny regulatory protein, ubiquitin was first identified in 1975. It is a component of every eukaryotic cell, controlling how vital proteins move throughout the body and taking part in both protein synthesis and protein degradation.
Your body's cells produce and degrade proteins at a rapid rate. Proteins are tagged for removal by ubiquitin, which binds to them. The name of this procedure is ubiquitination.
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