ribose exists largely in a furanose form, produced by addition of the c4 ] oh group to the c1 aldehyde. draw d-ribose in its furanose form.
Answers
The structure of D-ribose in its furanose form is depicted in the picture. In the furanose form, D-ribose undergoes intramolecular reaction where the hydroxyl group (OH) attached to carbon 4 (C4) reacts with the aldehyde group (CHO) attached to carbon 1 (C1).
This ultimately forms a five-membered ring, known as a furanose ring.
The structure of D-ribose in its furanose form can be explained as follows:
The carbon atoms are numbered consecutively starting from the aldehyde carbon (C1) and proceeding clockwise around the ring.
Carbon 2 (C2) is attached to C1 and also has a hydroxyl group (OH) attached to it.
Carbon 3 (C3) is attached to C2 and also has a hydroxyl group (OH) attached to it.
Carbon 4 (C4) is attached to C3 and also has a hydroxyl group (OH) attached to it.
Carbon 5 (C5) is attached to C4 and is connected to a hydroxy methyl group (CH2OH).
The resulting structure is a five-membered ring with oxygen (O) as one of the atoms in the ring, giving it a furanose structure.
The hydroxyl groups (OH) are located on the appropriate carbon atoms within the ring.
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![Ribose Exists Largely In A Furanose Form, Produced By Addition Of The C4 ] Oh Group To The C1 Aldehyde.](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/V998HubfiCOYS5tg1rjz1b63Lpi2Ix7f.gif)
Related Questions
which ion is responsible for the solution being acidic or basic nac2h3o2
Answers
The ion responsible for the solution being basic or acidic in NaC2H3O2 is the Acetate ion.
The Acetate ion, CH3COO- is responsible for the solution being acidic or basic in NaC2H3O2.
NaC2H3O2 is also known as Sodium Acetate. It is a common compound in the laboratory that is colorless, deliquescent, and odorless. It dissolves easily in water, and its pH varies depending on the solution's acetate and acetic acid concentration.
Because acetate ion is a weak base, its solution has a higher pH than a solution containing just the acid. The buffer capacity of a solution of the salt NaC2H3O2 (Acetate ion) is dependent on the concentration of the salt and the pH of the solution. A solution with a pH of 7.0 and a 0.1 M NaC2H3O2 concentration would have a buffer capacity of 1.4. A solution with a pH of 5.0 and the same salt concentration would have a buffer capacity of 13.0.The equation for the dissociation of sodium acetate is given below:
NaC2H3O2 ⇌ Na+ + C2H3O2-
We can say that the solution is basic if the pH is greater than 7, acidic if the pH is less than 7, and neutral if the pH is equal to 7.
Hence, the Acetate ion is responsible for the solution being basic or acidic in NaC2H3O2.
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What is the percent composition of hydrogen in the compound
Answers
Mass of each element in one mole of sulfuric acid: Mass of hydrogen = 2 × (1.008) = 2.016 g/mol. Mass of sulfur = 1 × 32.06 = 32.06 g/mol.
...
What is the percent composition of NaHCO₃?
Element Percent Composition
Sodium (Na) 27.367%
Hydrogen (H) 1.2%
Carbon (C) 14.298%
Oxygen (O) 57.14%
Given the translation (0,5), translate ordered pairs (9, 0) and (2,-4).
Answers
Answer:
(9,5) and (2,1)
Explanation:
A balloon that can hold 35 L of air is inflated with 2.5 moles of gas at a pressure of 2.5
atmosphere. What is the temperature in °C of the balloon?
Answers
Answer:
The temperature of the balloon is approximately 153.4°C.
Explanation:
To find the temperature in Celsius of the balloon, we can use the ideal gas law.
Ideal Gas Law\(\boxed{\sf PV=nRT}\)
where:
P is the pressure measured in atmospheres (atm).V is the volume measured in liters (L).n is the number of moles.R is the ideal gas constant (0.08206 L atm mol⁻¹ K⁻¹).T is the temperature measured in kelvin (K).Given values:
P = 2.5 atmV = 35 Ln = 2.5 molR = 0.08206 L atm mol⁻¹ K⁻¹Substitute the values into the formula and solve for T:
\(\implies \sf 2.5 \cdot 35 = 2.5 \cdot 0.08206 \cdot T\)
\(\implies \sf T=\dfrac{2.5 \cdot 35}{2.5 \cdot 0.08206}\)
\(\implies \sf T=\dfrac{87.5}{0.20515}\)
\(\implies \sf T=426.5178...\;K\)
As the temperature should be in Celsius, we need to convert from kelvin to Celsius by subtracting 273.15:
\(\implies \sf T=426.5178...\;K-273.15=153.4^{\circ}C\)
Therefore, the temperature of the balloon is approximately 153.4°C.
Isotopes of the same element have a different number of ______
Answers
Answer:
atomic weight..................
please help me! thank you so so much!!
Answers
Answer:
Volume
Explanation:
Answer:
Density second option is correct i hope so
What are the spectator ions when k2s and mgcl2 are combines
Answers
The spectator ions of when k2s and mgcl2 are combined are 1. Cl- (aq) and 2. K (aq)
the balance equation of MgCl2 and K2S is as follows:
MgCl2(aq) + K2S(aq) ------> MgS(s) + 2KCl(aq)
the net ionic equation is as follows:
Mg 2+ (aq) + 2 Cl- (aq) + 2K (aq) + S 2- (aq) = MgS(s) +2 Cl- (aq) + 2K (aq)
The overall reaction is as follows:
Mg 2+ (aq) + S 2- (aq) = MgS(s)
Thus the spectator ions are the following:
Cl- (aq)
K (aq)
If we compare the solutions before and after the reaction, sodium and nitrate ions are present in both the solutions. They do not undergo any chemical exchange at all. These ions are called spectator ions since they don't participate in the chemical reaction at all (they simply "watch").
Compare the reactant and product sides of the rewritten reaction and cross out the spectator ions. Any dissolved ions that appear in the same form on both sides are spectator ions.
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You collect a sample of gases from an indoor pool area. the sample contains air and water vapor. the total pressure is 100.18 kilopascals, and the partial pressure of the water vapor is 3.36 kilopascals. what is the partial pressure of the air in the sample?
Answers
Answer:
Explanation:
The partial pressure of the air in the sample can be found using the formula for Dalton's law of partial pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the individual gases:
Total pressure = partial pressure of gas 1 + partial pressure of gas 2 + ...
In this case, we have two gases: air and water vapor. We know the total pressure of the mixture and the partial pressure of the water vapor, and we want to find the partial pressure of the air. We can set up the equation as follows:
Total pressure = partial pressure of air + partial pressure of water vapor
Substituting the given values:
100.18 kPa = partial pressure of air + 3.36 kPa
Solving for the partial pressure of air:
partial pressure of air = 100.18 kPa - 3.36 kPa
partial pressure of air = 96.82 kPa
Therefore, the partial pressure of the air in the sample is 96.82 kilopascals.
where are the electrons found in Bohrs atomic model
Answers
Answer:
Explanation
In the Bohr model of the atom, electrons travel in defined circular orbits around the nucleus. The orbits are labeled by an integer, the quantum number n. Electrons can jump from one orbit to another by emitting or absorbing energy.
Can anybody help me asap pls
Answers
Answer:
Here is ur answer...
Explanation:
2) Half-filled d orbital increases the stability of the element.
determine the kinetic energy of an 833.0 kg roller coaster car moving at a speed of 20.0 m/s
Answers
Answer:
166,600J
Explanation:
Kinetic energy (K.E), which is the energy due to motion of a body, can be calculated by using the formula;
K.E = 1/2 × m × v²
Where;
K.E = kinetic energy (joules)
m = mass of body (kg)
v = speed or velocity (m/s)
According to this question, the mass of the roller coaster is 833.0 kg while its velocity/speed is 20.0m/s.
K.E = 1/2 × 833 × 20²
K.E = 1/2 × 833 × 400
K.E = 1/2 × 333200
K.E = 166,600
Therefore, the kinetic energy of the roller coaster car is 166,600J.
(HURRY 20 A student scoops some ocean water into a cup. He claims that it is not a mixture, because he doesn't see different components in the cup. Explain to this student why the cup of ocean water IS a
mixture. Use the proper term (heterogeneous or homogeneous) to describe the mixture as part of your explanation.
Answers
The ocean water contains a mixture of salt and other larger impurities, as well as a mixture of several gases.
What is a mixture?A mixture is a material composed of two or more different chemical substances that are not chemically bonded.
The natural waters salt and other larger impurities, and even a variety of gases. This is classified as a heterogeneous mixture due to larger impurities, whereas some is classified as a homogeneous mixture due to a mixture of several gases and salt.
Thus, the mixture can be said to be heterogenous one.
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Scott is making a chart to show the difference between chemical reactions and nuclear reactions. Which part of his chart is incorrect? Line 1: Chemical Reaction - Happens in the nucleus of atoms. Nuclear Reaction - Happens between atoms. Line 2: Chemical Reaction - Forms new compounds. Nuclear Reaction - Forms new atoms and radioactive particles. Line 3: Chemical Reaction - Involves small amounts of energy. Nuclear Reaction - Involves large amounts of energy. Answer choices: A) Line 1 is incorrect B) Lines 1 & 2 are incorrect C) Lines 2 & 3 are incorrect D) Line 3 is incorrect
Answers
Answer:
Line 3 is incorrect
Explanation:
In line 3, the statements should be switched. Chemical reactions involve small amounts of energy and nuclear reactions involve enourmous amounts of energy. Lines 1 and 2 are correct.
VOTE ME FOR BRAINLIEST!!
Answer:
Line 3 is incorrect
Explanation:
i took the test and got it right
Calculate the vapor pressure (in torr) of a 35°C solution of ethanol and propanol where the mole fraction of propanol is .75.
Assume ideal behavior.
P°ethanol = 100 torr
P°propanol = 36 torr
Answers
Answer:
i wish i know
Explanation:
Which of the following is a physical
change?
A iron rusting under water
B copper turning green in the air
C solid iodine subliming into a gas
D hydrogen and oxygen producing water
Answers
Answer:
C. solid iodine subliming into a gas
Explanation:
A physical change is a change that is reversible and can be reversed back into the original product. The atoms and molecules undergoes some rearrangement in the physical change. The process of change in the state of matters are placed under physical change. Solid iodine sublimes into purple gas on heating. The gas is then changed back to iodine crystals after being cooled. Hence, this is an example of a physical change.
The electron configuration for Helium (He) is shown below.
1s2
Which diagram shows the correct distribution of electrons in the electron shells of a helium atom?
Answers
Answer:
3rd image
Explanation:
what is the suggested weight of the sample that should be disssolved in the beaker before it is transferred to the NMR tube
Answers
According to the 1790 census, where did most enslaved people live?
only in the North
mostly in the South
mostly in the Mid-West
only in the far West
Answers
Answer:
B) Mostly in the South
Explanation:
most of the states towards Virginia and New York did not have much use for slaves as those in the south. There were more plantations and farms where slaves were needed for labor, were they're where not as many upstate.
According to the 1790 census, the south contained the highest number of slaves.
SlaverySlavery, condition in which one human being was owned by another. Slavery in America was legal and it involved enslaving human beings, mainly Africans and African Americans
The percentage of the population that was enslaved in the south was over 70 percent in most counties.
Most slaves where found in South Carolina and Georgia coast.
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this reaction is run using a nickel catalyst. how would adding nickel affect the reaction rate? explain your answer and draw nickel's effect on the energy diagram.
Answers
Adding nickel catalyst will have a positive effect on the reaction rate of the reaction.
A catalyst can increase the rate of reaction by providing an alternative reaction pathway that has a lower activation energy. In this case, adding nickel catalyst can increase the reaction rate of the reaction.
Nickel is a good catalyst because it is able to adsorb reactant molecules onto its surface and hold them there while the reaction takes place. This reduces the activation energy of the reaction, making it easier for the reaction to occur.
On the energy diagram of the reaction, adding nickel catalyst lowers the activation energy of the reaction. This means that the reactants require less energy to get over the energy barrier and react.
This increases the reaction rate of the reaction. This means that the reaction rate is increased as a result of the lower activation energy.
Therefore, adding nickel catalyst will have a positive effect on the reaction rate of the reaction.
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PLEASE HELP! LOTS OF POINTS!!
The overall process of photosynthesis has the balanced chemical equation 6CO2 + 6H2O → C6H12O6 + 6O2. What does this tell you about the relative amounts of carbon dioxide and water consumed in this process?
Question 7 options:
A)
For every mole of carbon dioxide consumed, one mole of water is consumed.
B)
For every six grams of carbon dioxide consumed, one gram of water is consumed.
C)
For every gram of carbon dioxide consumed, one gram of water is consumed.
D)
For every six moles of carbon dioxide consumed, one mole of water is consumed.
Question 8 (5 points)
The possible products of a double displacement reaction in aqueous solution are (NH4)2S and NaNO3. Which of these possible products will form as a solid in this reaction?
Question 8 options:
A)
(NH4)2S
B)
Neither compound will form as a solid.
C)
NaNO3
D)
Both compounds will form as a solid.
Iron oxide reacts with carbon monoxide to produce iron and carbon dioxide, with the balanced chemical equation Fe2O3 + 3CO → 2Fe + 3CO2. What does this tell you about the relative amounts of iron oxide and iron consumed and produced in this equation?
Question 10 options:
A)
For every gram of iron oxide consumed, two grams of iron are produced.
B)
For every two grams of iron oxide consumed, one gram of iron is produced.
C)
For every two moles of iron oxide consumed, one mole of iron is produced.
D)
For every mole of iron oxide consumed, two moles of iron are produced.
Answers
Answer:
Did you find the answer>
Explanation:
what is homologous series
Answers
Answer:
In organic chemistry, a homologous series is a sequence of compounds with the same functional group and similar chemical properties in which the members of the series can be branched or unbranched, or differ by -CH2.
Explanation:
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A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next few minutes? Molecules in both the metal and the surrounding air will start moving at lower speeds. Molecules in both the metal and the surrounding air will start moving at higher speeds. The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up. The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.
Answers
The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.
This means the air around will heat up, and the plate will cool down. They are trying to reach a thermal equilibrium.
carl lewis at the 1992 olympics in barcelona, spain, lewis won gold medals for the long jump (28 feet 5.5 inches), this resulted from an initial velocity of 9.5 m/s at an angle of 40 degrees to the horizontal.
Answers
The horizontal component of velocity is constant throughout the motion. The distance traveled by the projectile is given by the equation d = V^2 sin2θ/g where d is the distance traveled.
Carl Lewis at the 1992 Olympics in Barcelona, Spain, won gold medals for the long jump (28 feet 5.5 inches).
This resulted from an initial velocity of 9.5 m/s at an angle of 40 degrees to the horizontal.Initial velocity is the initial speed and direction of a moving object at a particular instant in time.
Its direction is typically measured in degrees, with 0 degrees being to the right, 90 degrees being up, and 180 degrees being to the left. The horizontal is the axis that runs from left to right.
The angle between the horizontal and the initial velocity vector is referred to as the angle of projection. This is usually referred to as the theta symbol.
The vertical component of velocity is equal to the initial velocity multiplied by the sine of the angle of projection. This is due to the fact that velocity can be broken down into horizontal and vertical components.
The horizontal velocity is constant throughout the motion and the vertical velocity changes due to gravity.
Therefore, the vertical component of velocity is zero at the top of the motion and maximum at the bottom.
The maximum height reached by the projectile is given by the equation h = V^2 sin^2θ/2g where h is the maximum height, V is the initial velocity, θ is the angle of projection, and g is the acceleration due to gravity.
On the other hand, the horizontal component of velocity is equal to the initial velocity multiplied by the cosine of the angle of projection.
This is due to the fact that velocity can be broken down into horizontal and vertical components.
The horizontal velocity is constant throughout the motion and the vertical velocity changes due to gravity.
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water is stored where until it is used by the cell
Answers
Answer: The water Inside the cell is stored inside the vacuole(s)
Explanation:
Hope this helps :)
What is the name of the molecule below?
OA. 2-ethyne
B. 1-butyne
C. 2-butyne
OD. 1-ethyne
H-C=C-CH, CH3
SUBMIT
Answers
H-C≡C-CH2-CH3 is called a
"condensed structure"
Answer:
1-Butyne
Explanation:
1-Butyne is HC2CH2CH3
2-butyne is CH3C≡CCH3
ethyne is HC≡CH and its molecular formula is C2H2
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The____of an earthquake is the location where the rupture of an
earthquake begins and energy is released.
(I’m really slow I need help) for science
Answers
Answer:
try hypocenter for the blank spot... hope this helps
Explanation:
Hypothesis: If you can measure the pH of a range of acids and bases using a universal pH indicator, then you can use those values to calibrate a cabbage pH indicator. To determine the pH of a solution using a pH indicator paper, you need a .
Answers
To determine the pH of a solution using a pH indicator paper, you need a color chart or a color scale that corresponds to different pH values.
This color chart or scale is used to compare the color of the pH indicator paper after it has been immersed in the solution. The pH indicator paper is impregnated with a universal pH indicator, which is a chemical compound that changes color depending on the acidity or alkalinity of the solution.
The indicator undergoes a chemical reaction with the hydrogen ions (H+) or hydroxide ions (OH-) present in the solution, resulting in a color change.
By comparing the color of the pH indicator paper with the color chart or scale, you can determine the approximate pH of the solution. The color chart usually provides a range of colors corresponding to different pH values, allowing you to match the observed color to the nearest pH value.
In the hypothesis mentioned, the aim is to calibrate a cabbage pH indicator using the pH values obtained from a universal pH indicator. Therefore, in addition to the pH indicator paper and color chart, you would also need a range of solutions with known pH values to establish a calibration curve specific to the cabbage pH indicator.
In summary, to determine the pH of a solution using a pH indicator paper, you need a color chart or scale that correlates the observed color of the pH indicator paper with different pH values. This chart or scale serves as a reference for interpreting the color change and determining the pH of the solution.
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Answer: COLOR KEY
Explanation: CS
What does an increase of 1 pH number represent?
Answers
Answer:
A one-point pH change indicates the strength of the acid or base has increased or decreased tenfold; a 2-point change indicates a 100-fold change in acidity or alkalinity, and a 3-point change in pH indicates a 1000-fold change. Examples: • An increase in pH from 7.0 to 8.0 means the water is 10 times more basic.
Explanation:
3. Give difference: Mass and Weight
Answers
Answer and Explanation:
Your mass is the same no matter where you go in the universe; your weight, on the other hand, changes from place to place. Mass is measured in kilograms; even though we usually talk about weight in kilograms, strictly speaking, it should be measured in newtons, the units of force. (according to cosmicmagazine.com)(not my writing or explanation)
___________________________________
The difference between mass and weight is that mass is the amount of matter in a material, while weight is a measure of how the force of gravity acts upon that mass. Mass is the measure of the amount of matter in a body. Mass is denoted using m or M. ... Weight is mass multiplied by the acceleration of gravity (g)
The ability of materials to act as conductors and insulators is relative. All materials, even those that are commonly classified as insulators, still allow some conduction of heat. For example, ceramic is a better conductor than Styrofoam. A ceramic mug filled with hot water feels warmer in your hand than a Styrofoam cup filled with hot water. However, ceramic is a worse conductor than metal. A metal mug filled with hot water would feel even hotter than the ceramic mug.
Which of the following accurately represents the relationship between ceramic and metal?
A
Metal and ceramic are equally effective conductors.
B
Metal is a better conductor than ceramic.
C
Metal is a better insulator than ceramic.
D
Metal does not conduct heat.
Answers
B. Metal is a better conductor then cramic
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