This cycle is known as Glycolysis
Glycolysis is the 10 step process, which occurs in cytoplasm of cell and is conversion of glucose to pyruvate.
There are several steps and enzymes that is required in glycolysis pathway.
STEP 1: PHOSPHORYLATION
This is irreversible reaction.
Here glucose is phosphorylated to glucose 6 phosphate with the help of enzyme hexokinase and 1 ATP is utilized.
STEP 2 : ISOMERISATION
The isomerization of Glucose-6-phosphate to Fructose-6-phosphate, done with the help of enzyme phosphoglucoisomerase.
STEP 3 : SECOND PHOSPHORYLATION
Fructose-1,6-bisphosphate is phosphorylated to Fructose 1,6 bisphosphate which is catalyzed by phosphofructokinase and cost another ATP.
STEP 4: BREAKDOWN
The fructose-1,6 bisphosphate is breaken down too produce two 3carbon molecules - Glyceraldehyde-3-phosphate, or GADP, and a molecule of Dihydroxyacetone phosphate or DHAP.
The reaction is catalyzed by aldolase.
STEP 5 : CONVERSION OF DHAP INTO GADP
DHAP is oxidized to form GADP.
The reaction is catalyzed by triose phosphate isomerase enzyme.
STEP 6: OXIDATION
Here 2 mol. of GADP are oxidized.The GDAP is converted to 1,3 bisphosphoglycerate with the help of glyceraldehyde phosphate dehydrogenase. This requires NAD+ and a free phosphate.
STEP 7: DEPHOSPHORYLATION
First substrate level phosphorylation ( addition of phosphate to ADP to give ATP )
1,3 bisphosphoglycerate with the help of Phosphoglycerate kinase become 3-phosphoglycerate and will produce 1 ATP.
STEP 8: PHOSPHATE TRANSFER
The phosphate ester linkage in 3 phosphoglycerate is moved from 3 C to 2 , because of low free energy to form 2 phosphoglycerate with the help of phosphoglycerate mutase .
STEP 9: DEHYDRATION
2 phopshoglycerate is dehydrated by enolase to form Phosphoenolpyruvate ( PEP)
This is reversible reaction.
STEP 10: SECOND DEPHOSPHORYLATION
2 substrate level phosphorylation which gives out ATP.
Non - oxidative phosphorylation.
Here Phosphoenolpyruvate ( PEP) is converted to last product of glycolysis pyruvate releasing ATP by pyruvate kinase.
The first five step is production of GADP, And usage of ATP and the next five steps are the formation of ATP and pyruvate. The net formation of ATP is 2 mol. of ATP and 2 mol. of NADH. This pyruvate then move to the TCA cycle.
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in the next three problems, we will attempt to solve the problem: what is the standard entropy change for the combustion of 1 mole of diamond at room temperature?
The standard entropy change for the combustion of 1 mole of diamond at room temperature is 6.22 J / K mol.
The reaction is given as :
C (diamond) + O₂ -----> CO₂
At room temperature the value of S° is given as follows :
C = 2.38 J / K mol
O₂ = 205.2 J/Kmol
CO₂ = 213.8 J/Kmol
The standard entropy change is given as :
ΔS° = ∑S° product - ∑ S° reactant
ΔS° = ( 213.8 ) - ( 2.38 + 205.2)
ΔS° = 213.8 - 207.58
ΔS° = 6.22 J / K mol
Thus, The standard entropy change for the combustion of 1 mole of diamond at room temperature is 6.22 J / K mol.
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There are many theories about how life was formed on Earth.
Suggest one reason why there are many
Can yall help me with this
Answer:
A planetary scientist who works at john hopskin university
Explanation:
If 2 isotopes of Osmium existed, Os-190 and Os-191, which one would have the highest percent abundance?
The isotope that has the highest percent abundance is Os-190.
What is the relative atomic mass of Osmium?We know that the amount of the element that can be found in the universe does differ because the element is composed of isotopes. The isotopes are the atoms of the element that have the same atomic number but does have different mass numbers.
Now we know that the two common isotopes of osmium are Os-190 and Os-191. The isotope that would have the highest percent abundance is the isotope whose mass is closer to the relative atomic mass of osmium which is 190.23.
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would you expect the dissolved oxygen levels in water sampled from a stream entering a lake to be higher or lower than the dissolved oxygen levels in water sampled from the lake itself? explain why.
I would expect the dissolved oxygen levels from wаter entering а lаke to hаve lower thаn the lаke itself becаuse the steаm is аble to hаve wаrm wаter which cаn cаuse the lаke temperаture to be wаrm аlso. Hаving wаrm wаter meаns hаving less dissolved oxygen.
What is the dissolved oxygen level?Dissolved oxygen (DO) is the аmount of oxygen thаt is present in wаter. Wаter bodies receive oxygen from the аtmosphere аnd from аquаtic plаnts. Running wаter, such аs thаt of а swift moving streаm, dissolves more oxygen thаn the still wаter of а pond or lаke. Heаlthy wаter should generаlly hаve dissolved oxygen concentrаtions аbove 6.5-8 mg/L аnd dissolved oxygen sаturаtion between аbout 80-120%.
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How can science help places that are affected by natural disasters?
Answer:
The answer is sophisticated earthquake early-warning systems, increasingly accurate storm forecasting, and innovative flood risk and flood mitigation projects provide communities with the tools they need to respond to impending hazard events, and infrastructure design and engineering improvements help to reduce the damage suffered
Explanation:
I hope this helps
when a platinum wire is dipped into a strontium nitrate solution and then inserted into a burner flame, the strontium atoms emit a characteristic red color. this is an example of how an element can be identified by its unique
A platinum wire is dipped into a strontium nitrate solution. Then inserted into a burner flame, then the strontium atoms emit a characteristic red color. this is an example of how an element can be identified by its unique atomic emission spectrum.
What is atomic emission spectrum?The goal of an atom's electron arrangement is to keep the energy of the atom as low as feasible. An atom's ground state has the lowest energy level of all the atoms. When the energy is applied to those atoms, the electrons take it in and go to a higher energy level. The electrons in atoms have quantized energy levels, which again means that they must transition from one level to another in discrete increments rather than constantly. An atom is said to be in an excited state when its potential energy exceeds that of the ground state. An excited atom is not a stable atom.
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an ax ceramic compound has the rock salt crystal structure. if the radii of the a and x ions are 0.137 nm and 0.241 nm, respectively, and the respective atomic weights are 22.7 g/mol and 91.4 g/mol, what is the density of this material?
The density of the material would be 1.75 gm/cc.
p = n'∑Ac + ∑AA/VcNA
= n'(∑Ac + ∑AA)/9³NA
=n'(∑Ac + ∑AA)/(2(rA + rX))³ NA
n' = number of atoms per unit cell
= 4(assumption)
rA = 0.137 × 10⁻⁷ cm
rX = 0.241 × 10⁻⁷ cm
NA = Avagadros number
= 6.022 × 10²³
∑Ac = Atomic weight of all cations
∑AA = Atomic weight of all anions
p = n'(∑Ac + ∑∑AA)/(2(rA + rx))³NA
= 4(22.7 + 91.4/(2(0.137 × 10⁻⁷ + 0.241 × 10⁻⁷))³ 6.022× 10²³
= 1.75 gm/cc
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(1) what is the complete ground state electron configuration for the nitrogen atom? (2) what is the complete ground state electron configuration for the vanadium atom?
The ground state electronic configuration of Nitrogen atom is 1s²2s²2p³
The ground state electronic configuration of vanadium atom is 1s²2s²2p⁶3s²3p⁶4s²3d³
What is electronic configuration?Electron configuration is the distribution of electrons within an atom or molecule (or other physical structure) in atomic or molecular orbitals. For example, the electron configuration of the neon atom is 1s²2s²2p⁶. This means that the 1s, 2s and 2p subshells have 2, 2 and 6 electrons respectively.
The electronic configuration of a type of atom (neutral or ionic) allows us to understand the shape and energy of its electrons. Many general rules are followed in assigning an electron's "position" to its possible energy states, but these assignments are arbitrary and it is always unknown which electron is being described. Knowing the electronic configuration of a species allows us to better understand its binding ability, magnetism and other chemical properties.
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Complete the following nuclear reaction equ
1.
155
63
Eu → e +
0
-1
Nuclear equation: ninety-two 238 U → ninety 234 T h + 2 4 H e + power.
In nuclear physics and nuclear chemistry, a nuclear response is a method in which two nuclei, or a nucleus and an external subatomic particle, collide to supply one or greater new nuclides. accordingly, a nuclear response need to purpose a transformation of at the least one nuclide to some other.
Nuclear Fusion reactions electricity the sun and other stars. In a fusion response, two light nuclei merge to form a single heavier nucleus. The method releases strength due to the fact the whole mass of the resulting single nucleus is less than the mass of the two unique nuclei. The leftover mass turns into energy.
Nuclei with too many neutrons, too few neutrons, or which might be absolutely too massive are risky. They eventually rework to a stable form thru radioactive decay. wherever there are atoms with risky nuclei, there are nuclear reactions taking place clearly.
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for a given sample of ch3oh , the enthalpy change during the reaction is 82.7 kj . what mass of methane gas is produced?
For a given sample of ch3oh , the enthalpy change during the reaction is 82.7 kj. The mass of the methane gas will be 32 gram.
When methanol will provide some temperature, then it will break into methane and oxygen gas and release some amount of energy.
The balanced chemical equation can be written as:
[tex]2CH_{3}OH[/tex]→ [tex]2CH_{4} + O_{2}[/tex], ΔH= 82 kJ
It can be seen that 2 mole of methane will produce 82 kj energy.
Hence, the energy of 82.3kj the count of mole could be = (2×82.3)/82
= 2 moles
The mass will be equivalent to the = 2 × 16 = 32 g
Therefore, the mass of [tex]CH_{4}[/tex] produced will be 32g
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Which group is outside of our solar system
Answer:
Exoplanets
Explanation:
Exoplanets are planets beyond our own solar system. Thousands have been discovered in the past two decades, mostly with NASA's Kepler Space Telescope.
Which of the electron dot structures correctly illustrates diatomic nitrogen with a triple bond?.
The electron dot structure of diatomic nitrogen is N≡N.
The electron dot structure of the nitrogen molecule is attached
The atomic number = 7
Chemical symbol = N
Type of bond = Triple bond
Group = 5A
Total number of valance electrons = 5
Lewis structure:
Find the total number of valence electrons Find the number of electronsNumber of bonds in the moleculesChoosing the central atom with the highest electronegativity.Drawing the base skeletal structure.Placing the electrons as per the octet rule around the outer and central atoms.Therefore the electron dot structure is N≡N.
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find the volume of 0.250 m sulfuric acid necessary to react completely with 74.3 g sodium hydroxide.
The volume of 0.250 m sulfuric acid necessary to react completely with 74.3 g sodium hydroxide is 3.7 L.
The chemical reaction of sulfuric acid and sodium hydroxide is given as below:
H2SO4 + 2NaOH ------- Na2SO4 + 2H2O
From above, we noticed that, one mole of sulfuric acid react with two moles of sulfuric acid.
Therefore, firstly we convert grams of sulfuric acid into moles.
As we know that, molar mass of sodium hydroxide is 40 g.
What is mole?It is defined as the given mass to the molar mass of substance.
Mathematically,
Moles = Given mass / molar mass
Given mass of sulfuric acid = 74.3 g
By substituting all the values, we get
Moles = 74.3 / 40
= 1.85 mol
So, 1/2 moles of sulfuric acid one moles of sodium hydroxide.
Or, 1.85 moles of sodium hydroxide react with 1/2 × (1.85) moles of sulfuric acid.
1.85 moles of sodium hydroxide react with 0.925 moles of sulfuric acid.
Now,
Concentration of sulfuric acid = 0.250 M
Moles of sulfuric acid = 0.925 mol
C = m/ V
V = m/ C
= 0.925/ 0.250 = 3.7 L
Thus, we concluded that the volume of 0.250 m sulfuric acid necessary to react completely with 74.3 g sodium hydroxide is 3.7 L.
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in the affinity chromatography lab which type of interaction will be utilized to purify lactate dehydrogenase?
Two lactate dehydrogenase isoenzymes interacting
what is affinity chromatography?
Affinity chromatography is a technique for extracting a biomolecule from a mixture that relies on a very particular macromolecular binding relationship between the biomolecule and another component. Depending on the biomolecule of interest, the specific type of binding contact may be between an antigen and an antibody, an enzyme and a substrate, a receptor and a ligand, or a protein and a nucleic acid. Binding interactions are routinely used to isolate different biomolecules. When compared to other chromatographic techniques, affinity chromatography is advantageous due to its high selectivity and resolution of separation.
In order to study the effects of pH and temperature on lactate dehydrogenase binding, immobilized NAD+ matrices were used to study the interactions of two isoenzymes of lactate dehydrogenase from pig heart muscle (H4) and rabbit skeletal muscle (M4). Investigated was how substrate, product, and sulphite affected the binding of heart muscle lactate dehydrogenase to immobilised NAD+. It was determined how the two lactate dehydrogenase isoenzymes interacted with immobilised pyridine and adenine nucleotides and their derivatives. Correlations between these factors' effects on lactate dehydrogenase's interaction with immobilised nucleotides and the known kinetic and molecular characteristics of the enzymes in free solution were found.
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Compare the structure and bonding of three compounds
Carbon dioxide, magnesium oxide, silicon dioxide
A solid with a covalent network is silicon dioxide. Carbon dioxide is a covalent molecule, whereas magnesium oxide is an ionic substance.
It is a covalent molecule, carbon dioxide. Although the complex has polar C-O bonds, it is often nonpolar, therefore the molecules are only held together by modest dispersion forces.
Ionic solids include the substance magnesium oxide. It has a crystal lattice made up of magnesium ions and oxygen ions. The chemical is almost insoluble in water because of the significant lattice energy and small ion sizes.
Chains of silicon-oxygen bonds make up the covalent network solid known as silicon dioxide. The network solid has a high melting point and creates a very stiff structure.
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an insulated rigid tank contains 5 kg of air at 15 oc and 100 kpa. an electric resistance heater inside the tank is now turned on and kept on until the air temperature rises to 40 oc. determine the entropy change of the air during this process.
Answer is Δs=0.3kJ/K
Since, the tank is insulated rigid tank, The process is constant volume process,
Air as perfect gas
Obtain the properties from the table. Consider th state 1. P=100kPa, T, = 15°C
s=6.830kJ/kg-K
v=0.827 m³/kg
Constant volume process,
Consider the state 2. T = 40°C, v, v = 0.827 m²/kg
5,6.890 kJ/kg-K
Calculate the change in entropy,
Δs=m(s, -s) =5(6.890-6.830)
Δs=0.3kJ/K
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Exam Question: Describe and
explain the trends in melting and
boiling points across period 3
As we move across period 3 the number of delocalized electrons per metal atom increases and the radius of the elements decreases. This means the melting point increases.
What is melting point and boiling point ?
The temperature at which molecules in a solid can pass one another and transform into liquids is known as the melting point. On the other hand, liquids and gases are involved in the boiling point. Some molecules at the liquid's surface are escaping as the molecules move around.
The three metals' melting and boiling points rise as a result of the strengthening of their metallic connections. Each atom can contribute an increasing quantity of electrons to the delocalized "sea of electrons." As you get from sodium to magnesium to aluminum, the atoms also get smaller and have more protons.
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(Digestion, Intestine, Bile)is secreted by the liver to help in the breaking down of food particles.
Answer:
Bile
Explanation:
Bile is secreted by the liver to help in the breaking down of food particles.
a student places a piece of i2(s) in 50.0 ml of h2o(l), another piece of i2(s) of the same mass in 50.0 ml of c6h14(l), and shakes the mixtures. the results are shown above. what do the results indicate about the intermolecular interactions of the substances?
When a piece of I2 in 50 ml of water is placed then another piece of I2 of the same mass in C6H14 is placed then hydrogen bonding is formed in water and a strong London dispersion force occurs.
C6H14 is a straight chain alkane with 6 carbon atoms with no double or triple bond.this is non polar. So, London dispersion forces exist.this is the force that exists between all molecule.this is the weakest intermolecular forces.the boiling point of C6H14 increases as their atomic mass increases due to stronger London dispersion force.
Water has strong intermolecular forces.in this,hydrogen bonding and dipole moment created by the strong electronegative oxygen and hydrogen.water has hydrogen bond,dipole induced dipole forces and London dispersion forces.
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what single qualitative test from this module could be employed to distinguish between t-butyl chloride and n-butyl chloride? state which compound would come out positive and what would be the indicatio
T-butyl chloride changes its ppt formed and color more quickly with ague and an indicator than other chlorides do.
The hydrant A color shift was caused by the addition of AgNO3 when a product like Hl reacted with the acid-base indicator MethyL red. The released chloride ion was found by Agel precipitation at ambient temperature. Both a color change in an indicator and a precipitate format positively confirmed that the reactivity order in both cases is t-butyl chloride > n-butyl chloride. As a result, t-butyl chloride changes its ppt formed and color more quickly with ague and an indicator than other chlorides do.
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Is using matches to light a candle physical or chemical change ?
Answer:
It's a chemical change.
Explanation:
The process of burning (as opposed to evaporating) is a chemical reaction, a chemical change. The wax molecules are undergoing a chemical change; they are changing into different molecules by reacting with a substance in the air.
calculate the ph of a buffer solution obtained by dissolving 29.029.0 g of kh2po4(s)kh2po4(s) and 44.044.0 g of na2hpo4(s)na2hpo4(s) in water and then diluting to 1.00 l.
The pH of buffer solution obtained will be 7.05 by dissolving 29.029.0 g of kh2po4(s)kh2po4(s) and 44.044.0 g of na2hpo4(s)na2hpo4(s) in water and then diluting to 1.00 l.
This can be calculated using use Henderson - Hasselbalch equation:
PH = Pka + ㏒ [A/AH]
Molar mass of KH₂PO₄ = 136.0 g And Molar mass of Na₂HPO₄ = 142.0 g
No. of moles of H₂PO₄⁻ = No. of moles of KH₂PO₄ = (29..0 g) / (136.0 g/mol) = 0.213 mol
No. of moles of HPO₄²⁻ = No. of moles of Na₂HPO₄ = (44.0 g) / (142.0 g/mol) = 0.30 mol
In the solution, [HPO₄²⁻]/[H₂PO₄⁻] = 0.213/0.30
Henderson-Hasselbalch equation:
pH = pKₐ + log([HPO₄²⁻]/[H₂PO₄⁻])
pH = 7.21 + log(0.213/0.30)
pH = 7.05
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The residents asked the town planners to propose some possible solutions that will address their transportation concerns and reduce the amount of CO2 released into the atmosphere. Of these, which is your favorite solution:
Question 3 options:
Restrict the use of private vehicles powered by fossil fuels on public roads.
Promote vehicles powered by renewable energy sources to harvest the crops and get them to market.
The solution for addressing transportation concerns and reducing the amount of carbon dioxide released into the atmosphere might include promoting vehicles powered by renewable energy sources to harvest the crops and get them to market (Option B).
What are renewable energy sources?The expression renewable energy sources make reference to different types of energy that replace the use of fossil based fuels in order to avoid the increase in the carbon dioxide level.
Therefore, with this data, we can see that renewable energy sources such as wind energy or solar energy replace fossil based fuels.
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a 625- ml sample of unknown hcl solution reacts completely with na2co3 to form 17.1 g co2 . what was the concentration of the hcl solution?
According to the given statement 1.24 M was the concentration of the hcl solution.
What is the HCI solution?One of the main tools for connecting, managing, and running networked enterprise applications in a failover clustering infrastructure is a hyper - converged architecture (HCI) solution (HCI). Organizations may virtualize data, servers, and networks thanks to technology.
Briefing:The balanced reaction is 2 HCl + Na₂CO₃ ==> CO₂ + H₂O + 2 NaCl
This shows that each mole of CO₂ created results in
There are two moles of HCl needed. So, starting with the atomic weights of carbon and oxygen, let's determine how many moles of CO₂ were produced.
Atomic weight carbon = 12.0107
Atomic weight oxygen = 15.999
Molar mass CO₂
= 12.0107 + 2 * 15.999
= 44.0087 g/mol
Moles CO₂ = 15.1 g / 44.0087 g/mol = 0.388559535 moles
We know we needed twice as much HCl based on the balanced equation,
so 0.388559535 mol * 2 = 0.77711907 mol
Simply divide the amount of moles by the number of liters because molarity is defined as moles per liter,
so: 0.77711907 mol / 0.625 l = 1.24339051 mol/l
Since our data only has three significant figures, round it to three figures to get 1.24 m.
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Energy made available through the flow of electric current is called...
Radiant
Sound
Elastic
Electrical
The energy transfer in the form of light or heat is called radiant energy. Thus the flow of electric current can be called as radiant.
What is radiation?Radiation is a mod of energy transfer through vacuum and the electromagnetic radiations are such energy transfer from stars and space which hits the earth surface.
Sound is a mechanical wave only travels through a medium whereas electromagnetic waves does not need a medium to travel. Electromagnetic radiation is the combination of an electric field and magnetic field.
Hence, the flow of electric current by which the energy made available is called radiant.
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suppose you burn a 3.0 g sample of potato chips. you use the heat given off from that process to heat 26.8 g of water from 16.4 oc to 21.4 oc. what is the caloric value (in kcal/g) of the potato chips?
The caloric value(in kcal/g) of the potato chips is 0.04467 kcal/g.
Heat absorbed by water:
[tex]Q=m.C.T\\Q=26.8 * (21.4-16.4)*1\\Q=0.134[/tex]
The caloric value of potato chips :
=Kcal/grams of potato chips
[tex]=0.134/3.0\\=0.04467 Kcal/g[/tex]
How to calculate heat absorbed?
Q = mc∆T
Q means heat (what you want to know), m means mass, c means the specific heat capacity and ∆T is the change in temperature. You can find the change in temperature by subtracting the starting temperature from the final temperature.What is caloric value?
A food calorie is actually a “kilocalorie.” In other words, it is the amount of energy needed to raise the temperature of one liter of water by one degree.
Thus, the caloric value of the potato chips is 0.004467Kcal/g
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why are the first ionization energy of the transition elements from sc to zn fairly constant until zn?
Due to same d-same shell, that's why first ionization energy of the transition elements .
What is ionization energy?Ionization energy, also called ionization potential, in chemistry and physics, the amount of energy required to remove an electron from an isolated atom or molecule.
What is transition elements?Transition elements (also known as transition metals) are elements that have partially filled d orbitals. IUPAC defines transition elements as an element having a d subshell that is partially filled with electrons, or an element that has the ability to form stable cations with an incompletely filled d orbital.
Why first ionization energy of the transition elements is constant?In transition elements, the first ionization energy of the elements remain constant because of poor shielding in d-subshell. The electrons suffers repulsion due to which their ionic radii does not decrease on moving from left to right. That's why first ionization energy of the transition elements from Sc to Zn fairly constant until Zn.
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What temp is the warmest?
A. 30 degrees celsius
B. 273 kelvin
C. 0 degrees celsius
D. 32 degrees Fahrenheit
Answer:
30 degrees Celsius, is 86 Fahrenheit.
273 kelvin, is 31.73 Fahrenheit.
0 degrees Celsius, is 32 Fahrenheit.
Then 32 degrees Fahrenheit.
The correct answer choice is A. 30 degrees Celsius.
2. 2.00 gram of a compound requires the following quantities of solvent to dissolve: 90.0 ml of water, 7.50 ml of chloroform, 32.0 ml of diethyl ether, or 85.0 ml of benzene. calculate the partition coefficient of the compound between chloroform and water, diethyl ether and water, and benzene and water. which solvent would you choose to extract the compound from an aqueous solution?
Partition coefficient Chloroform = 11.98, Diethyl Ether = 2.81 and Benzene = 1.05
Chloroform would be the ideal solvent to use when extracting the chemical from an aqueous solution because it has the highest solubility.
A solution is a homogenous mixture of one or even more solutes in a solvent. Adding sugar cubes to a cup of tea or coffee is an example of a solution. A property that facilitates the dissolution of sugar molecules is solubility. Solubility is the property of a substance (solute) to dissolve in a particular solvent. A solute is any solid, liquid, or gaseous substance that dissolves in a solvent.
The compound needs 2 grams of solvent to dissolve it.
Finding solubility
For water, 2g/90ml= 2.22
For chloroform, 2g/7.50= 26.6
For diethyl ether, 2g/32= 6.25
For benzene, 2g/85= 2.35
Partition Coefficients -
For chloroform = 11.98
For Diethyl Ether = 2.81
For Benzene = 1.05
As a result of its high solubility, chloroform would be used to extract a compound from an aqueous solution.
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