This is because amino group of p-aminobenzoic acid is an aniline and is less electrophilic than an alkyl amine.
What is an Aniline?This is an aromatic amine which consists of a phenyl group attached to an amino group.
The amino group of p-aminobenzoic acid being an aniline makes it less electrophilic which is why an alkyl amine participates in the reaction instead.
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The amino group of p-aminobenzoic acid does not participate in the reaction as this is an aniline and is less electrophilic than an alkyl amine.
What is an Aniline?Aniline is an aromatic amine molecule in which phenyl group is attached with an amino group.
The amino group present in the p-aminobenzoic acid behave as an aniline as a result of which it becomes less electrophilic in nature and this is the reason why an alkyl amine participates in the reaction instead of the p-aminobenzoic acid.
Hence amino group of p-aminobenzoic acid is less electrophilic in nature and that's why not participate in the reaction.
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compound has a percent composition of 38.7% carbon, 9.76% hydrogen, 51.5% oxygen.
Laboratory data shows that the compound's molar mass is 62.0 g/mol. What is the
molecular formula of the compound?
The molecular formula for a compound with a percent composition of 38.7% C, 9.76% H, 51.5% O, and a molar mass of 62.0 g/mol is C₂H₆O₂.
What is a molecular formula?A molecular formula is a chemical formula indicating the kinds and number of atoms of each kind in a molecule of a compound.
To determine the molecular formula, we need to follow a series of steps.
Step 1. Divide the percentage of each element by its molar mass.C: 38.7/12.01 = 3.22
H: 9.76/1.01 = 9.66
O: 51.5/16.00 = 3.22
Step 2. Divide all the numbers by the smallest one, i.e. 3.22.C: 3.22/3.22 = 1
H: 9.76/3.22 = 3
O: 3.22/3.22 = 1
The empirical formula is CH₃O and its molar mass is 31.04 g/mol.
Step 3. Determine the molecular formula.First, we will calculate how many times the empirical formula is contained in the molecular formula by dividing their molar masses.
n = (62.0 g/mol) / (31.04 g/mol) = 2
The molecular formula is 2 times the empirical formula, that is, C₂H₆O₂.
The molecular formula for a compound with a percent composition of 38.7% C, 9.76% H, 51.5% O, and a molar mass of 62.0 g/mol is C₂H₆O₂.
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Balanced equation for formation of potassium suberate from cyclooctene
The balanced equations for the formation of potassium suberate from cyclooctene are;
3KMnO4 + 3C8H18 + 4H2O --> 3C8H17(OH)2 + 2MnO2 + 2KOH and
3C8H14(OH)2 + 6KMnO4 ----> 3KCOO(CH2)6 COOK + 6MnO2 + 6H20
What is potassium suberate ?
The compound potassium suberate is obtained from cyclooctene. The first step in the process is the oxidation of cyclooctene using potassium permanganate as follows;
3KMnO4 + 3C8H18 + 4H2O --> 3C8H17(OH)2 + 2MnO2 + 2KOH
This is followed by the production of potassium suberate from the reaction equation;
3C8H14(OH)2 + 6KMnO4 ----> 3KCOO(CH2)6 COOK + 6MnO2 + 6H20
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Balanced chemical equation for the formation of potassium suberate from the cyclooctene is 3KMnO₄+3C₈H₁₈+4H₂O→3C₈H₁₇(OH)₂+2MnO₂+2KOH &
3C₈H₁₄(OH)₂+6KMnO₄→3KCOO(CH₂)₆COOK+6MnO₂+6H₂O
What is balanced equation?Those equation in which number of each entities present on both sids of the given chemical equation is same is known as balanced equation.
Formation of potassium suberate from the cyclooctene will be complete in following two steps:
(1). In first step oxidation of cyclooctene is done by using potassium permanganate.
3KMnO₄ + 3C₈H₁₈ + 4H₂O → 3C₈H₁₇(OH)₂ + 2MnO₂ + 2KOH
(2). In the second step final product is obtained as a result of the oxidation as.
3C₈H₁₄(OH)₂ + 6KMnO₄ → 3KCOO(CH₂)₆COOK + 6MnO₂ + 6H₂O
Hence the balanced chemical reaction for the formation of potassium suberate is discussed above.
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A gas occupies a volume of 0.7 L at 10.1 kPa. What volume will the gas occupy at 101 kPa?
Answer:
7L
Explanation:
Divide 101 by 10.1(kPa) and you get 10.
10 x .7 = 7
The concept Boyle's law is used here to determine the new volume of gas . Boyle’s law was put forward by the Anglo-Irish chemist Robert Boyle in the year 1662. Here the new volume of the gas is 0.07 L.
What is Boyle's law?A gas law known as Boyle's law asserts that a gas's pressure is inversely proportional to its volume when it is held at a fixed temperature and of a given mass. To put it another way, as long as the temperature and volume of the gas remain constant, the pressure and volume of the gas are inversely proportional to one another.
For a gas, the relationship between volume and pressure (at constant mass and temperature) can be expressed mathematically as follows.
P = k*(1/V) ⇒ PV = k
For two different gases, the equation is:
P₁V₁ = P₂V₂
V₂ = P₁V₁ / P₂
10.1 × 0.7 / 101 = 0.07 L
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Which compound has the empirical formula with the greatest mass?
A.
C2H6
B.
C4H10
C.
C5H10
D.
C6H6
B. C4H10
Butane is a straight chain alkane composed of 4 carbon atoms. It has a role as a food propellant and a refrigerant. It is a gas molecular entity and an alkane.
Mass of C2H6 = 30.07 g/mol
Mass of C4H10 = 58.1222 g/mol
Mass of C5H10 = 70.1329 g/mol
Mass of C6H6 = 78.11184 g/mol
The mass of the empirical formula C6H6 is the greatest of all other compounds.
What is Molar mass?A chemical compound's molar mass is calculated by dividing its mass by the number of moles—measured in moles—that make up the sample of that compound. A substance's overall characteristics include its molar mass. The compound is present in many different forms, each with a different mass as a result of the isotopes. The molar mass is the average of these masses. The molar mass is most frequently calculated using the standard atomic weights and is a function of the relative abundance of the constituent atoms' isotopes on Earth. It is thus a terrestrial average. For converting between a substance's mass and its amount for large quantities, use the molar mass.To learn more about Molar mass, refer to:
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what determines the role of an organism in an ecosystem?
Answer:
An organism's role within an ecosystem depends on how it obtains its food. Plants and animals obtain their food in very different ways, so they have very different roles in an ecosystem. The way in which an organism obtains food also affects its interactions with other organisms in the ecosystem.
Explanation:
A neutral cloth and a neutral rod are rubbed together. Electrons are transferred from the rod to the cloth. What will be the final charge on the cloth?
Answer: The net charge on the cloth with be negative.
Explanation:
Because electrons are being transferred from the neutral rod to the neutral rod to the neutral cloth, the cloth will become negative due to the excess electrons. (The rod will also become positively charged, but that’s beyond the scope of the question.)
When a neutral cloth and a neutral rod are rubbed together then the final charge on the cloth is negative.
What is transfer of charge from material ?Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred in a material that are conduction, friction, and polarization.
How does the charge transfer from rod to the cloth ?Rubbing a neutral rod with a neutral cloth also transfer charge from both the material. We know that a metal rod is a conductor of electricity whereas the cloth is an insulator that does not conduct electricity. When both the rod and cloth is rubbed, electrons are transferred due to friction on the material. Electrons are always negatively charged. As the rod and cloth is rubbed, the electrons flow from the rod to the cloth thereby making the rod as positively charged and the cloth as negatively charged.
Thus, when a neutral cloth and a neutral rod are rubbed together then the final charge on the cloth is negative.
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Given the gas conversion factor 1 MOL= 22. 4 L , why couldn’t we just convert 38. 0 L to moles to get the answer for the last problem?
To calculate the molar volume of a gas at STP you can use the ideal gas law equation,
PV=nRT
Regardless of what ideal gas you use, the molar volume at STP will be identical across the board, since you'll be using 1 mole in the ideal gas law equation regardless of what gas you're dealing with.
That is why the volume occupied by 1 mole of any ideal gas will be equal to 22.7 L at STP.
22.4L = 1 mol
38.0L = ?
= 38/22.4
=1.6964285714 Moles
Balance the chemical equation
Balanced equation: 2 HI --> I2 + H2
Explanation:
HI-
H = 1 x 2 = 2
I = 1 x 2 = 2
H2-
H = 2
I = 2
What is the best definition of the enthalpy of formation, A HA?
A. The energy released when products form in a reaction
B. The energy absorbed when products form in a reaction
C. The energy required for a molecule to form from its elements
D. The energy required for an atom to form from its subatomic
particles
Answer:
I guess the answer ia point A
Identifying balanced and unbalanced forces
Identify the situations that have an u balanced force. Check all that apply
A baseball speeds up as if it falls through the air
A soccer ball is at rest on the ground
An ice skater glides in a she ighr like at a constant speed
A bumper car hit by another car moves off an angle
A bin goes across the room when the air is released
Hikers noticed that a sealed bag of potato chips puffs up when taken to the top of a mountain. Suppose that at the valley floor below, the air pressure is 1. 0 atm, the temperature is 25°C, and the volume of the bag is 0. 985 L. At the top of the mountain, the temperature is 22°C and the bag has puffed up to 1. 030 L. What is the air pressure on top of the mountain? Type in your answer using the correct number of significant figures. Formula: P1V1 T1 = P2V2 T2 atm.
The final pressure or the air pressure on the top of the mountain is 0.818.
What is air pressure?Air pressure is the pressure exerted by air in the atmosphere of the earth.
By the Gas law
[tex]\dfrac{P_1V_1}{ T1} =\dfrac{ P_2V_2 }{T_2}[/tex]
Given, the pressure of the valley floor is 1 atm. = P1
The temperature is 25° C = T1
The volume of the bag is 0.985 L. = V1
The temperature at the top of the mountain is ° C = T2
Now, the volume of the bag is 1. 030 L = V2
To find P2
Put the values in the formula
[tex]\dfrac{1 atm \times0.985 L}{ 25} =\dfrac{ P_2 \times 1. 030 L }{22}\\\\0.03832 = 0.0468 \times P_2\\\\P_2= 0.818[/tex]
Thus, the final pressure is 0.818.
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Need help ASAP. Thank you
Answer:
Circuit 1 = ?
Circuit 2 = Parallel
Explanation:
Since circuit 1 isn't shown on the picture, it's probably a series circuit, but if circuit 1 is a box with symbols around it, then it's a series circuit. But if it has three or more horizontal lines/cables like circuit 2, then it's a parallel circuit - circuit 2 has a second horizontal line with an open switch and lamp.
Circuit 2 is a parallel circuit, as it has branches/horizontal lines (that were explained in the paragraph above).
what happens to a cell placed in an isotonic solution
Answer:
The cell's volume will remain stable.
Explanation:
If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
At 25°C, which 5.0 g Zn sample will react the fastest with dilute HCÚ?
A)
bar
B)
lump
C)
powdered
D)
sheet metal
powdered because it has more surface area which leads means there are more reactant particles exposed to collide, therefore the successful collision rate increases, resulting in an increased rate of reaction.
[tex]\sf \boxed{\sf fiery answererft}[/tex]
If you hadn't added quite enough hydrochloric acid to consume all the magnesium metal, what would be the effect of this error on the percent yield in your experiment? Would the actual yield ( and thus the percent yield) be erroneously high, low, or be unaffected by not adding enough HCl? Explain
If enough HCl is not added, the percent yield will be lower as all the magnesium metal has not reacted with HCl.
What is percent yield of a reaction?The percent yield of a reaction is the ratio of the actual yield and the expected yield expressed as a percentage.
Percent yield = actual yield/expected yield × 100%The reaction between magnesium metal and HCl liberates hydrogen gas and forms magnesium chloride salt.
If enough HCl was not added to react with all the magnesium metal, the actual yield will be lower.
Hence, percent yield will be lower as well.
Therefore, the percent yield will be lower if all the magnesium metal has not reacted with HCl.
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3. Explain why an aluminum ion (A13+) is smaller than a sodium ion (Na+).
Answer:
This question is hard :( I dont know im so sorry
Explanation:
During Taylor's second test of a car with a mass of 200 grams, she recorded 11 seconds, 11.4 seconds, and 11.2 seconds for her 3 trials. What would be the mean value she would use to compare with the other cars?
11 seconds
33.6 seconds
11.2 seconds
11.53 seconds
Answer:
the answer is 11.2 seconds. I listened to the other person and picked 33.6 but that was wrong.
Explanation:
took test
How can solar flares affect the oceans?
Explanation:
it can damage satellites cuase there in space and are not protected by earth
Which of the following phrases best defines the word software?
A.
an object that orbits the Earth
B.
a set of radio waves that are used to determine distance
C.
an image that is taken from the air
D.
a program on a compute
Answer:
D. a program on a computer
Explanation:
Explain why Na, Mg, and Al are good conductors of electricity?
Why wasn’t sodium hydroxide used in the synthesis of divanillyl oxalate, instead of triethylamine?
Sodium hydroxide wasn't used in the synthesis of divanillyl oxalate because it's a strong base.
What is sodium hydroxide?It should be noted that sodium hydroxide simply means a corrosive cystaline solid which readily absorbs moisture until it dissolves.
In this case, sodium hydroxide wasn't used in the synthesis of divanillyl oxalate because it's a strong base and will decrease the yield of the product.
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Divanillyl oxalate is a chemical that is produced by triethylamine. Sodium hydroxide is not used in its synthesis as it is a strong base.
What is sodium hydroxide?Sodium hydroxide or caustic soda is an ionic compound with ions of sodium and hydroxide. The formula is shown as, [tex]\rm NaOH[/tex]. It is crystalline and absorbs moisture from the surrounding.
It is not used in the synthesis of divanillyl oxalate as it is a strong base with pH 14 that affects the yield of the product in the reaction.
Therefore, sodium hydroxide is not used in the synthesis reaction.
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What is the coefficient of the permanganate ion when the following equation is balanced? mno4- br- → mn2 br2 (acidic solution)
In acidic solition, the coefficient of permanganate ion in the balanced redox equation is 2.
How can a redox equation be balanced?A redox equation showing a reduction and an oxidation reaction occurring simultaneously.
To balance redox equations, the atoms reacting as well as the electrons transferred are balanced.
In the reaction of permanganate ion and bromide ion in acidic solution, the balanced redox equation is given as follows:
2 MnO4- + 10Br- + 16 H+ → 2 Mn2+ 5 Br2 + 8 H2OTherefore, the coefficient of permanganate ion in the balanced redox equation is 2.
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The coefficient of the permanganate ion of the MNO₄ - Br- → MN₂ + Br₂ is 2.
What is a redox reaction?A redox equation depicting a simultaneous reduction and oxidation reaction.
The atoms reacting as well as the electrons transferred must be balanced to balance redox equations.
The balanced redox equation for the reaction of permanganate ion and bromide ion in acidic solution is:
[tex]\rm 2 MnO_4- + 10Br^- + 16 H^+ \rightarrow2 Mn_2+ 5 Br_2 + 8 H_2O[/tex]
Thus, the coefficient of the permanganate ion of the MNO₄ - Br- → MN₂ + Br₂ is 2.
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A scientist has a container with a substance inside. At first, the molecules in the substance move away from each other. Later, the molecules move around each other. What change did the scientist observe in the substance
Answer:
before the substance was a gas it was a liquid.
Explanation:
What is true of a sample of gas as temperature is increased? (3 points)
As temperature increases, the average kinetic energy of a sample of gas molecules decreases.
Given that delta.g for the reaction below is –957.9 kj, what is delta.gf of h2o? 4nh3(g) 5o2(g) right arrow. 4no(g) 6h2o(g) delta.gf,nh3 = -16.66 kj/mol delta.gf,no = 86.71 kj/mol –228.6 kj/mol –206.4 kj/mol 46.7 kj/mol 90.7 kj/mol
The valur of energy of formation ΔGf of H₂O is -228.6 kJ/mol.
How we calculate ΔG ?ΔG of any reaction will be calculated as:
ΔG = Sum of ΔG of products - Sum of ΔG of reactants
Given chemical reaction is:
4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g)
For this reaction, ΔG will be calculated as:
ΔG = [ΔGf 4(NO) + ΔGf 6(H₂O)] - [ΔGf 4(NH₃) + ΔGf 5(O₂)]
Given that:
ΔG = -957.9 kJ
ΔGf of NH₃ = -16.66 kJ/mol
ΔGf of NO = 86.71 kJ/mol
ΔGf of O₂ = 0 (because it is present in elemental form)
ΔGf of H₂O = let x (to find)
On putting all these values on the above equation, we get
-957.9 = [4(86.71) + 6(x)] - [4(-16.66) + 5(0)]
-957.9 = 346.84 + 6x + 66.64
6x = -957.9 - 346.84 - 66.64
6x = -1,371.38
x = -228.56 = -228.6 kJ/mol
Hence, correct option is (1) i.e. -228.6 kJ/mol.
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Answer:
A) -228.6 kJ/mol
Explanation:
EDGE 2022
100 points
In an equilibrium expression, the concentrations of ___ are on top.
A:products B:solids C:reactants D:liquids
Answer:
products, it's answer A.
Answer:
products
Explanation:
Which statement best describes a society’s desire for fuel-efficient vehicles? Choose the correct answer.
Auto manufacturers set fuel-efficiency standards.
Interest in fuel efficiency decreases when fuel prices are low.
Fuel shortages in the 1980s started the interest in fuel efficiency.
An increase in fuel efficiency increases carbon dioxide emissions.
Fuel shortages in the 1980s started the interest in fuel efficiency best describes a society’s desire for fuel-efficient vehicles because of Iran- Iraq war.
Why Fuel shortages in the 1980s started?The Iran-Iraq War in 1980 is the main cause of shortage of oil production. Iraq's and Iran's oil production dropped significantly which triggering economic recessions worldwide.
So that's why society’s desire for fuel-efficient vehicles in order to reduce consumption as well as reduce pollution.
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Calculate the number of grams nitric acid (HNO3) in 375 L of a 1.00 M solution.
4. when cu(oh), is heated, it decomposes to black cuo and h,o. consider, how
many grams of cuo will be formed from the decomposition of 6.59 g of cu(oh)?
if only 5.17 g of cuo are produced instead, what is the percent yield?
The percent yield of CuO is 96%. The percentage yield shows the extent to which reactants are converted to products.
What is percent yield?The percent yield is the actual yield divided by the theroretical yield multiplied by 100.
Now we have the equation;
2Cu(OH)2 → 2CuO + 2H2O
Number of moles of Cu(OH)2 = 6.59 g/98 g/mol = 0.067 moles
Since 2 mole of Cu(OH)2 yeilds 2 moles of CuO
0.067 moles alos yields 0.067 moles of CuO
Mass of CuO = 80 g/mol * 0.067 moles of CuO = 5.36 g
Hence, percent yield = 5.17 g/5.36 g * 100 = 96%
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hello people ~
According to Robert Boyle, which of the following is not an acid’s property?
a) turns blue Litmus red
b) sour in taste
c) neutralize bases
d) bitter in taste
Answer:
Bitter in taste
Explanation:
Acids according to Robert Boyle taste sour not bitter.
They are corrosiveThey can act as neutralize basesAccording to Robert Boyle, the option which is not an acid’s property include the following: d) bitter in taste.
What is an acidic solution?In Chemistry, an acidic solution can be defined as a type of aqueous solution that has a high concentration of hydrogen ions (H⁺), which is typically greater than that of pure water.
According to Robert Boyle, the properties of acids include the following:
They turn a blue Litmus paper red.
They are corrosive
They can act as neutralize bases.
They are sour in taste
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