Each of the following reactions has been reported in the chemical literature and proceeds in good yield. Identify the principal organic product of each reaction. 1,2-Diethy 1-4- nitrobenzene 1,3-Dimcthyl-2-nitrobcnzcnc
Answers
1,2-Diethy 1-4- nitrobenzene is the principal organic product of each reaction that proceeds in good yield.
An organic product is created using components from organic farming. The most popular organic products are foods, however organic agriculture can also be used to produce apparel and personal care products. Organic food is produced using a technique of farming that avoids the use of toxic chemical fertilisers and pesticides while taking socially and environmentally responsible actions.
Skeletal formula, which is the accepted notation for organic compounds, is another name for the 2D chemical structure image of 1,2-diethyl-4-nitrobenzene. In the 1,2-diethyl-4-nitrobenzene chemical structure, the carbon atoms are implied to be at the corner(s) and the hydrogen atoms attached to them are not shown; instead, it is assumed that each carbon atom is connected to enough hydrogen atoms to form four bonds.
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Related Questions
use the tabulated half-cell potentials to calculate δg° for the following balanced redox reaction. 3 i2(s) 2 fe(s) → 2 fe3 (aq) 6 i-(aq) i2(s) 2 e- → 2 i-(aq) e°
Answers
The standard Gibbs free energy change (ΔG°) for the given redox reaction is -20979 J/mol.
To calculate the standard Gibbs free energy change (ΔG°) for the given balanced redox reaction, we need to use the tabulated half-cell potentials (E°) and the Nernst equation.
The given half-reactions are:
1) I2(s) + 2e- → 2I-(aq) with E° = 0.535 V
2) Fe3+(aq) + 3e- → Fe(s) with E° = -0.036 V
The overall reaction is:
3I2(s) + 2Fe(s) → 2Fe3+(aq) + 6I-(aq)
We can use the Nernst equation to calculate the overall cell potential (Ecell):
Ecell = E°cathode - E°anode
= (0.000 V) - (-0.036 V)
= 0.036 V
The standard Gibbs free energy change (ΔG°) can be calculated using the formula:
ΔG° = -nFEcell
where n is the number of electrons transferred in the balanced equation (in this case, 6) and F is Faraday's constant (F = 96485 C/mol).
ΔG° = -(6)(96485 C/mol)(0.036 V)
= -20979 J/mol
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a first order reaction has a rate constant of 0-0051 nmin', if we begin with 0-10m concentration of the rcactant, what concentration of reactant will 2 remain in solution alter 3 hours?
Answers
Answer: 0.04M
Explanation: For 1st order reaction -
A chemical reaction with a reaction rate linearly dependent on the concentration of just one Reactant is known as a first-order reaction. In other terms, a first-order reaction is a chemical reaction in which only one of the reactants' concentrations changes and the rate of the reaction changes as a result
The first order rate of reaction when defined in a formula is written as-
t = 2.303/k log[R]°/[R]
Given,
t = 3hr = 180mins
k= 0.0051min
[R]° = 0.1M (final)
[R] = ? (initial)
180 = 2.303/0.0051 log 0.1/[R]
log 0.1/[R] = 918/2303
log 0.1/[R] = 0.39 ~ 0.4
0.1/[R] = 10^0.4
[R] = 0.1/10^0.4
[R] = 0.1/2.5
[R] = 0.04M
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An ion always contains
O equal numbers of protons and neutrons
O equal numbers of protons and electrons
O unequal numbers of protons and electrons
O unequal numbers of protons and neutrons
Answers
An ion always contains unequal numbers of protons and electrons. Therefore, option C is correct.
What is an ion?An ion can be defined as a chemical species that holds a positive or negative charge. The ‘ion’ can be referred to as atoms or molecules with non-zero charges associated with them.
Therefore, all ions have either more electrons than protons in their atomic structure more protons than electrons.
If the protons are greater than electrons are termed to exhibit a net positive charge and are usually referred to as cations. The ions that contain more electrons than protons exhibited a net negative charge and are referred to as anions.
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Which statement illustrates the difference between a chemical reaction and a nuclear reaction?A nuclear reaction releases more energy per gram and appears to violate the law of conservation of mass.A nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.A nuclear reaction releases more energy per gram but does not appear to violate the law of conservation of mass.A nuclear reaction releases less energy per gram but does not appear to violate the law of conservation of mass.
Answers
According to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.
What is a nuclear reaction?It is a procedure that leads to combining and modifying the nuclei of atoms and subatomic particles and appears to violate the law of conservation of mass.
Through this kind of process, the nuclei can be combined or fragmented, absorbing or releasing particles and energy according to each case.
Therefore, we can conclude that according to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.
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How to melt white chocolate chips in the microwave?
Answers
Answer:
umm put it in a bowl and put it in the microwave and melt it
Explanation:
PLEASE HELP: Explain why most substances are carbon compounds?
Answers
Answer:
The reason is carbon's ability to form stable bonds with many elements, including itself.
Explanation:
This property allows carbon to form a huge variety of very large and complex molecules. In fact, there are nearly 10 million carbon-based compounds in living things!
Answer:
Explanation:
The reason is that carbon is able to form stable bonds with many elements, including itself, which allows carbon to form a huge variety of very large and complex molecules.
Which unit is used for measuring atomic mass? O A. atomic mole O B. grams/mole Ос. grams O D. atomic mass unit ОЕ. atomic mass weight
Answers
The following ionic equation (not balanced) represents the
reaction that occurs when aqueous solutions of ammonium sulfate and
silver(I) acetate are combined. Identify the spectators ions in the
equat
Answers
The given ionic equation (not balanced) represents the reaction that occurs when aqueous solutions of ammonium sulfate and silver(I) acetate are combined and the spectators ions in the equation are:
Spectator ions are the ions that are present on both sides of the equation and does not participate in the reaction. These ions appear the same way in the reactant and product side, so they cancel out when we write the net ionic equation.The chemical equation is given by :
\($\ce{ (NH4)2SO4(aq) + 2AgC2H3O2(aq) -> 2NH4C2H3O2(aq) + Ag2SO4(s)}$\)
The chemical equation shows the reaction of aqueous ammonium sulfate and aqueous silver(I) acetate that gives aqueous ammonium acetate and silver(I) sulfate as solid precipitate respectively.The spectator ions present in the equation are:
\($\ce{2 NH4+(aq)}$ and $\ce{2 C2H3O2-(aq)}$\)
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vessel a contains co(g) at 0 oc and 1 atm. vessel b contains so2(g) at 20 oc and 0.5 atm. the two vessels have same volume. a. which vessel contains more molecules? b. which contains more mass? c. in which vessel is the average kinetic energy of molecules higher? d. in which vessel is the rms speed of molecules higher?
Answers
Vessel B has more mass. Explanation: Because temperature and average kinetic energy of molecules are directly proportional to each other.
The average kinetic energy of a substance's particles is directly inversely correlated with its temperature. As the temperature increases, the particles must travel more quickly because their mass remains constant.
The relationship between a gas particle's average kinetic energy and temperature is linear. The pace at which the gas molecules flow rises with temperature. At a specific temperature, the average kinetic energy of all gases is identical.
Molecules of gas move more quickly when they are lighter. Because of this, as the gas's temperature rises, its volume also does so. The more gas particles there are, the more likely it is that they will hit the container's walls, hence the frequency of collisions must rise.
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was the gradual color change observed when the sodium thiosulfate (nas2o3) crystal was added to the aqueous solution of ki/i2 in station c evidence of a chemical or physical change?
Answers
The gradual color change observed when the sodium thiosulfate (\(Na_{2}S_{2}O_{3}\)) crystal was added to the aqueous solution of KI/\(I_{2}\) in Station C evidence of a chemical change.
Let's mix а solution of sodium thiosulfаte, \(Na_{2}S_{2}O_{3}\), with iodine, \(I_{2}\), dissolved in аqueous potаssium iodide, KI. The mixture of iodine аnd potаssium iodide mаkes potаssium triiodide. \(KI_{3}\). We will put the triiodide solution in the empty beаker аnd аdd some sodium thiosulfаte.
Solution of \(I_{2}\) in KI ( \(KI_{3}\)) ⇒ Its color is clear yellowA solution of sodium thiosulfate, \(Na_{2}S_{2}O_{3}\), is added to the iodine ⇒ It's color gradually changes to clear.The result is a colorless solution a clear water.A balanced equation for the oxidation-reduction reaction between sodium thiosulfate and potassium triiodide:
\(S_{2}O_{3} ^{2-} + I_{2}\neq S_{4} O_{6} ^{2-} +I^{-}\)
Thus, this equation shows evidence of a chemical change.
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The density data for a
metal was collected in the
table to the right. The
metal was thought to be
aluminum, which has a
density = 2.7 g/cm³.
A. The data is both accurate and precise.
B. The data is accurate but not precise.
C. The data is not accurate but is precise.
D. The data is neither accurate nor precise.
Answers
The data is the data is not accurate but is precise. Option C
What is precision and accuracy?A measurement is said to be precise if the values in the replicate measurement are close together. The measurement is said to be accurate if each of the values in the replicate measurement are close to the true or actual value.
Here we have a series of replicate measurements for the density of a metal. Looking at the table, we can see that the values that are obtained upon each trial are close to each other thus that values are precise.
On the other hand, the true value of the density is given to be 2.7 g/cm³. This implies that the measurement is not accurate. Hence the data is the data is not accurate but is precise. Option C
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I Really need help With CHEMISTRY !! How do I do this?
1. Find the amount of heat (Q) needed to raise the temperature of 5.00 g of a substance from 20.0 to 30.0 degrees Celsius, if the specific heat of the substance is 2.01J/g℃
2. A metal with a specific heat of 0.780 J/g℃ requires 45.0 J of heat to raise the temperature by two degrees Celsius. What is the mass of the metal?
Answers
Answer:
1: 100.5 J
2: 28.8 g
I found the answers online ;-;"
Each cell has a membrane. This is a thin layer that surrounds it. It keeps the inside and outside of the cell separate. What does the word "surrounds" mean? A fully supports B stands alone C pulls apart D totally covers
Answers
Answer:
D
Explanation:
Cell membrane, also called plasma membrane, thin membrane that surrounds every living cell, delimiting the cell from the environment around it.
8. Calculate the mass of 3.47x 1023 gold atoms.
Answers
Answer:
the answer is 1.227
Starch is a carbohydrate consisting of glucose polymers. The caloric value for glucose is3.9 kcal/g. You eat a potato that weighs 174 g. Assume that 92% of the total mass of apotato is starch. Determine (a) how many kcal, and how many kJ of energy were in thepotato you ate. 1 cal (gram calorie) = 4.184 joules. Show all your work
Answers
We are told that starch consists of glucose polymer, so we can assume that the caloric value of starch will be equal to the caloric value of glucose, that is, 3.9kcal/g.
Now to determine the kcal and kJ there were in the potato we must calculate the mass of starch present in that potato. We are told that it is 92% starch, therefore the mass of starch in the potato will be:
\(gStarch=174g\times\frac{92\%}{100\%}=160.gStarch\)We have that in the potato there are 160.08 grams of starch. By multiplying it by the caloric value we will have the kcal that were in the potato, assuming that the rest of the ingredients do not contribute caloric value, or it is insignificant.
\(\text{kcal of potato}=160g\times3.9\frac{kcal}{g}=624\text{kcal}\)To calculate the kJ we must make the conversion using the relationship that 1 cal is equal to 4.184 joules:
\(\text{kJ of potato}=624kcal\times\frac{1000cal}{kcal}\times\frac{4.184J}{1cal}\times\frac{1kJ}{1000J}=2612kJ\)In the potato, there were 624 kcal of energy or 2612kJ of energy.
Is hydrogen a metal or a nonmetal? How many valence electrons does a hydrogen atom have?
Answers
Answer:
hydrogen is a non-metal and it has 1 valence electron
Explanation:
You can find the valence electrons on the bottom left of your periodic table, it is under the atomic number. Hydrogen is a non-metal because hydrogen conducts heat and electricity poorly.
Consider the chemical equations shown here.
P4(s)+3O2(g)--->P4O6(s) ΔH1 = -1,640.1 kJ
P4O10(s) → P4(s) + 5O2(g) ΔH2 = 2,940.1 kJ
What is the overall enthalpy of reaction for the equation shown below?
Round the answer to the nearest whole number.
P4O6(s) + 2O2(g) --->P4O10(s)
Answers
Answer:
-1300. kJ
Explanation:
We have two equations:
1. P₄(s) +3O₂(g) ⟶ P₄O₆(s); ΔH₁ = -1640.1 kJ
2. P₄O₁₀(s) ⟶ P₄(s) + 5O₂(g); ΔH₂ = 2940.1 kJ
From these, we must devise the target equation:
3. P₄O₆(s) + 2O₂(g) ⟶ P₄O₁₀(s); ΔH = ?
The target equation has P₄O₆(s) on the left, so you reverse Equation 1.
When you reverse an equation, you reverse the sign of its ΔH.
4. P₄O₆(s) ⟶ P₄(s) +3O₂(g); ΔH₁ = 1640.1 kJ
Equation 4 has P₄ on the right. That is not in the target equation.
You need an equation with P₄ on the left, so you reverse Equation 2.
5. P₄(s) + 5O₂(g) ⟶ P₄O₁₀(s); ΔH₂ = -2940.1 kJ
Now, you add equations 4 and 5, cancelling species that appear on opposite sides of the reaction arrows.
When you add equations, you add their ΔH values.
You get the target equation 3:
4. P₄O₆(s) ⟶ P₄(s) + 3O₂(g); ΔH₁ = 1640.1 kJ
5. P₄(s) + 2(5)O₂(g) ⟶ P₄O₁₀(s); ΔH₂ = -2940.1 kJ
3. P₄O₆(s) + 2O₂(g) ⟶ P₄O₁₀(s); ΔH = -1300. kJ
ΔH for the reaction is -1300. kJ
A balloon is inflated to 665 mL volume at 27°C. It is then cooled down to -78.5°C. What
is its volume, assuming the pressure remains constant?
Answers
Answer:
431 mL
Explanation:
This is a question about the relationship between the volume and temperature of a gas. The volume of a gas is directly proportional to its temperature in kelvins when the pressure is held constant. This relationship is described by Charles’s Law.
To solve this problem, we need to convert the temperatures from degrees Celsius to kelvins by adding 273.15. So 27°C is equivalent to 300.15 K and -78.5°C is equivalent to 194.65 K.
Let’s call the initial volume of the balloon V1 and its initial temperature T1. The final volume of the balloon will be V2 and its final temperature T2. According to Charles’s Law, the relationship between these variables can be expressed as:
V1/T1 = V2/T2
Substituting the known values into this equation, we get:
665 mL / 300.15 K = V2 / 194.65 K
Solving for V2, we find that the final volume of the balloon is approximately 431 mL.
Which of the following is an adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor?
A. Migration of birds due to change in seasons.
B. Hibernation of a snake from September to December.
C. Plants die due to lack of water and high temperature.
D. Body temperature regulation of polar bears during winter
Volcanic eruption is considered as one of the changes in abiotic factors in the ecosystem. Which of the following is/are the effect/s of volcanic eruptions in the ecosystem?
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
Help plsssssss
Answers
The effects of volcanic eruption include acid rain and destruction of lives and property.
What are abiotic factors?The term abiotic factors refers to those factors that are non living such as rainfall, topography, etc. The adaptation of organisms in avoiding unfavorable condition due to a change in abiotic factor is hibernation of a snake from September to December.
A volcanic eruption is a sudden outburst of molten magma from the earth's crust. The effects of volcanic eruption include acid rain and destruction of lives and property.
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plz help with this........
Answers
ITS \(C_{4}H_{10}\) AND \(C_{5}H_{12}\)
_____________________________________GENERAL FORMULA OF ALKANE \(C_{n}H_{2n+2}\)Where n is the number of CARBONS
_____________________________________A)
By using the General Formula of Alkanes having 4 carbon atoms is
\(C_{4}H_{2x4+2}\)
\(C_{4}H_{10}\)
C)
By using the General Formula of Alkanes having 5 carbon atoms is
\(C_{5}H_{2x5+2}\)
\(C_{5}H_{12}\)
_____________________________________IF YOU USE THE SAME FORMULA FOR THE OTHER TWO OPTIONS THE OUTCOME WILL NOT BE AS SAME AS GIVEN IN THE QUESTION SO THOSE TWO ARE CAN NOT BE OUR ANSWER
_____________________________________HOPE THIS HELPS!
Please help me!!!
The graph below represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature and volume of water in the pot? (All temperatures in °C.)
A. The temperature will rise, and the water volume will decrease.
B. The temperature will rise, and the water volume will remain constant.
C. The temperature will remain constant, and the water volume will decrease.
D. The temperature will remain constant, and the water volume will remain constant.
Answers
So technicaly the answer is D
Which compound has the shortest carbon-carbon bond length?
a. CH3CH3
b. CH2CH2
c. HCCH
d. All bond lengths are the same.
Answers
The correct answer is c. C₂H₂, which has the shortest carbon-carbon bond length.
The compound with the shortest carbon-carbon bond length is c. C₂H₂, which refers to ethyne or acetylene. Ethyne consists of a triple bond between the two carbon atoms, resulting in a shorter bond length compared to the other compounds listed.
In option a, CH₃CH₃ (ethane), the carbon-carbon bond is a single bond, which is longer than a triple bond.
In option b, CH₂CH₂ (ethylene), the carbon-carbon bond is a double bond, which is longer than a triple bond but shorter than a single bond.
Therefore, the correct answer is c. C₂H₂, which has the shortest carbon-carbon bond length due to the presence of a triple bond between the carbon atoms.
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Which of the following should be done when designing an experiment for a controlled scientific investigation?
Answers
A usual type of controlled experiment balance a control group against an experimental group.
Which of the following should be done when designing an experiment for a controlled scientific investigation?The parts of the experimental design are control, free variable, dependent variable, constant variable, randomly assignment, and manipulation. These are the components is also help you explain if the experiment is valid. A controlled experiment is an experiment that set side by side the effect of one manipulated variable on a group that collects no treatment. controlled variables. the element that should be kept matching in both the nursing group and the non-treated group. True experiments have four elements: artifices, control, random or assignment, and random selection. The main of these elements is manipulation and control. Manipulation means that something is purposefully changed by scientists and the environment.
so we can conclude A common type of controlled experiment compares a control group against an experimental group.
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What is the physical state of oxygen at 1 atm of pressure?
Answers
Oxygen is indeed a gas under normal circumstances. However, the gas transforms into a liquid or a solid at low temperatures and/or high pressure. The air has 0.21 atm of oxygen in it.
What are the uses of oxygen?The energy-producing process that powers the metabolism rate of most living organisms, respiration, depends heavily on oxygen. All living things, including humans, depend on the air that we breath to survive.
How does oxygen become made?Oxygen is produced by cyanobacteria, algae, and plants. Photosynthesis is how they accomplish this. They convert both water and carbon dioxide create glucose and oxygen using the sunlight's energy. The sugars are used in their diet. Oxygen has small intermolecular forces.
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If a magnet is put inside one coil of wire, a voltage is produced. what will happen if the magnet is put inside two coils of wire? a. there will not be a change. b. the voltage will decrease by a factor of two. c. the voltage will increase by a factor of two. d. the two coils of wire will cancel out the magnetic field. e. the voltage will be zero.
Answers
When the magnet is put inside two coils of wire, the voltage will increase by a factor of two.
What is induced emfAn induced emf occurs when a magnet is placed in magnetic field and their is relative motion of a conductor placed in the magnetic field.
The strength of the induced emf increases with increase in the number of the turns of the conductor and its relative speed in the field.
emf = NdФ/dt
where;
N is number of the loopsdФ is change in magnetic fluxdt is change in time.The above formula is the basis of Faraday's law of electromagnetic induction.
Thus, when the magnet is put inside two coils of wire, the voltage will increase by a factor of two.
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What is the chemical equation C+O-CO2
Answers
Answer:
arbon monoxide reacts with oxygen to produce carbon dioxide. Write the balanced chemical equation for this reaction.
...
Example.
Step Result Equation balanced?
1 carbon monoxide + oxygen → carbon dioxide
2 CO + O 2 → CO 2
3 Reactants: 1 × C, (1 × O) + (2 × O) = 3 × O. Products: 1 × C, 2 × O Not balanced.
4 2CO + O 2 → CO
which pollutant are you more likely to encounter in dangerous concentrations indoors rather than outdoors?
Carbon Monoxide
Answers
Carbon Monoxide is a gas that is colorless and odorless. It is generated as a byproduct of burning gas, wood, charcoal, and other organic fuels. Carbon Monoxide is a dangerous pollutant that can be found indoors rather than outdoors in dangerous concentrations.
Carbon Monoxide is a gas that is colorless and odorless. It is generated as a byproduct of burning gas, wood, charcoal, and other organic fuels. Carbon Monoxide is a dangerous pollutant that can be found indoors rather than outdoors in dangerous concentrations. It is critical to keep in mind that Carbon Monoxide concentrations are highest in enclosed spaces. It is a pollutant that is more likely to be found indoors than outside. Carbon Monoxide can be lethal if inhaled in sufficient concentrations.
At lower concentrations, it can cause headaches, nausea, and dizziness. Carbon Monoxide detectors are available to warn you if it is present in the air. Carbon Monoxide is a pollutant that we should be aware of and take precautions against to keep ourselves and our family safe. In conclusion, Carbon Monoxide is a harmful indoor pollutant that should be monitored frequently with alarms, especially in spaces that are not adequately ventilated, and with fuel-burning devices, to avoid dangerous levels that may lead to life-threatening emergencies.
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which structure could not be seen using an electron microscope? choose one: a. electron b. ribosomes c. individual cell d. dna e. plasma membrane
Answers
The structure of an electron could not be seen by using an electron microscope.
An electron is a small particle having a negative charge that is found in all the atoms. Streams of electrons made by special equipment which can be used for the radiation treatment.
An electron microscope is a microscope which uses a beam of accelerated electrons as a source of illumination. As the wavelength of an electron can be up to 100,000 times shorter than the visible light photons, electron microscopes having higher resolving power than to the light microscopes and can reveal the structure of the smaller objects. Electron microscopes use shaped magnetic fields to form an electron optical lens systems that are analogous to the glass lenses of an optical light microscope.
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Why does platinum metal make a good catalytic surface for reactant molecules?
It causes reactant molecules to be less reactive.
It strengthens bonds between reactant molecules.
It prevents products from breaking away from the surface.
It holds reactant molecules in a good position for them to react.
Answers
Answer:
it holds reactant molecules in a good position for then to react
Answer:
D. It holds reactant molecules in a good position for them to react.
Explanation:
Got a 100 on e2020.
A sample of carbon -14 has been decaying for 22,920 years and it is now 35. 0 grams. What was the size of the original sample (the half life of carbon 14 is 5730 years)
Answers
The original size of the carbon-14 sample was 560 grams if the sample of carbon-14 has been decaying for 22,920 years and it is now 35. 0 grams.
The given data is as follows:
Material given = carbon -14
Time period = 22,,920 years
weight = 35 grams
To calculate the original sample size, we need to use the formula,
N = M (1/2)^(t/T)
35.0 g = M (1/2)^(22,920/5730)
35.0 g = M (1/2)^4
35.0 g = M (1/16)
For simplification, we need to multiply both sides by 16 to balance the value on the right side.
M = 16 * 35.0g
M = 560g
Therefore, we can conclude that the original size of the carbon-14 sample was 560 grams.
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