Answers
Answer:
Explanation:
In this case, we have a Friedel-Craft reaction (see figure 1). Usually in this type of reaction, the benzene ring is bonded directly to the carbon that has the halide atom. But in this specific case, this is not happening.
To understand why we have to remember the reaction mechanism of this reaction. As first, step the Cl-C bond attacks the \(AlCl_3\) and we form a new bond between the alkyl halide and the \(AlCl_3\), finally the C-Cl bond is broken and a carbocation is formed. In this case, we will have a primary carbocation, a very unstable species. Therefore we will have a methyl shift to obtain a tertiary carbocation.
This tertiary carbocation will react with and continues the reaction. (See figure 2)
I hope it helps!
In this circumstance, we have a Friedel-Craft reaction. Usually in this type of reaction, the benzene ring is bonded directly to the carbon that has the halide particle. But in this characteristic case, this is not transpiring.
What is the Friedel-Craft reaction?
To comprehend why we have to recognize the reaction mechanism of this reaction. As the first, step the Cl-C bond attacks the AICI₃ and we form a new bond between the alkyl halide and the AICI₃, finally the C-Cl bond is broken and a carbocation is formed. In this circumstance, we will have a primary carbocation, a very unstable species. Thus we will have a methyl shift to acquire a tertiary carbocation.
This tertiary carbocation will react with and continues the reaction.
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Related Questions
The half-life of a radioactive isotope is 27 years. How long will its
mass take to fall from 2.00 g to 0.25 g?
years.
Answers
Life will come out to be 10 days. This is the required value of half life.
what is radioactive isotope?
An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable. Radioisotopes may occur in nature or be made in a laboratory. In medicine, they are used in imaging tests and in treatment. Also called radionuclide. Radioactive isotopes have many useful applications. In medicine, for example, cobalt-60 is extensively employed as a radiation source to arrest the development of cancer. Other radioactive isotopes are used as tracers for diagnostic purposes as well as in research on metabolic processes.Atoms of the same element with different numbers of neutrons are called isotopes. Many elements have one or more isotopes that are radioactive. Their nuclei are unstable, so they break down, or decay, and emit radiation.To learn more about isotope refers to:
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What is the molality of a solution prepared by dissolving 150.0 g C6H12O6 in 600.0 g of H2O?
Answers
Answer:
50/36 = 25/18
Explanation:
Solution at attachment box
Molality = mole of dissolvable (this question glucose) / kg of water
Answer:
Molality = 1.38 mol/Kg
Explanation:
Given data:
Molality of solution = ?
Mass of C₆H₁₂O₆ = 150.0 g
Mass of water = 600.0 g (600 g ×1 kg/1000 g= 0.6 Kg)
Solution:
Number of moles of C₆H₁₂O₆:
Number of moles = mass/molar mass
Number of moles = 150.0 g/180.16 g/mol
Number of moles = 0.83 mol
Molality:
Molality = moles of solute / kg of solvent
Molality = 0.83 mol /0.6 Kg
Molality = 1.38 mol/Kg
Which major scientist major contribution was to develop the theory of evolution? (100 points)
Answers
Answer:
Alfred Russel Wallace
6. How many moles are in 8.30 x 1023 molecules of CO₂?
a.
b.
C.
d.
1.37
2.8
55.5
100
Answers
for the following reaction determine the standard entropy for b(g) if the standard entropy change of the chemical reaction
Answers
The standard entropy change for a reaction can be calculated using the sum of the standard entropies of the products minus the sum of the standard entropies of the reactants.
The entropy of a substance is a measure of its thermal energy, with greater entropy indicating a greater degree of disorder or randomness in the distribution of thermal energy. In a chemical reaction, the standard entropy change refers to the change in entropy that occurs when a reaction takes place under standard conditions, typically defined as a temperature of 25°C and a pressure of 1 atm.
To calculate the standard entropy change for a reaction, the standard entropies of the reactants and products must be determined and compared. The sum of the standard entropies of the products minus the sum of the standard entropies of the reactants is equal to the standard entropy change for the reaction.
Here is an example of a reaction with the calculation of its standard entropy change for b(g) species:
2 H2(g) + O2(g) -> 2 H2O(g)The standard entropies of H2, O2 and H2O can be looked up in a thermodynamics table and are, respectively, 130.7 J/mol K, 205.0 J/mol K and 188.8 J/mol K.
Hence:
ΔS° reaction = ΔS° products - ΔS° reactants= (2 * 188.8 J/mol K) - (130.7 J/mol K + 205.0 J/mol K)= 2 * 188.8 J/mol K - 335.7 J/mol K= 377.6 J/mol KSo the standard entropy change for this reaction is 377.6 J/mol K, indicating that the entropy of the system increases during this reaction.
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even one or two crystals of copper sulphate can make its solution in water coloured blue. why
Answers
this also may happen because of the water molecules that get attached
The chemical formula for calcium chloride is
Answers
Answer: anhydrous CaCl 2 :0H 2 O
monohydrate CaCl 2 :1H 2 O
a di-hydrate CaCl 2 :2H 2 O
Explanation:
SOICHIOMETRY HOW MANY MOL OF NITROGEN DIOXIDE ARE REQUIRED TO PRODUCE 2.75 MOL NITRIC ACID? 3NO2+ H20→ 2HNO3+ NO
6.50 mo nitrogen dioxide
4.125 mol nitrogen dioxide
3.275 mol nitrogen dioxide
2.75 mol nitrogen dioxide
Answers
Answer: C
Explanation: Hope this help :D
If the volume of an object is 5 cm^3 and its mass is 55g, what is its
density
Answers
Answer:
The density is 11 g/cm^3
Explanation:
Density is mass divided by volume.
Calculate the number of grams of xenon in 3.541 g
of the compound xenon tetrafluoride.
Answers
The mass (in grams) of xenon in 3.541 g of the compound xenon tetrafluoride is 2.243 grams
How to determine the mass of Xe in 3.541 g of XeF₄We'll begin by listing the composition of xenon tetrafluoride, XeF₄
1 mole of XeF₄ contains the following:
1 mole of XeF₄ = 131.3 + (4 × 19) = 131.3 + 76 = 207.3 g1 mole of XeF₄ contains 131.3 g of Xe1 mole of XeF₄ contains 76 g of FThe mass of Xe in 3.541 g of XeF₄ can be obtained as illustrated below:
207.3 g of XeF₄ contains 131.3 g of Xe.
Therefore,
3.541 g of XeF₄ will contain = (3.541 g × 131.3 g) / 207.3 g = 2.243 g of Xe
Thus, 2.243 g of Xe is present in 3.541 g of xenon tetrafluoride, XeF₄
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combustion always result in to formation of water. what other type of reactions may result into formation of water? examples of these reactions
Answers
As combustion always result into the formation of water, the other type of reactions that may result into formation of water are Acid-Base Neutralization Reactions and Hydrogen and Oxygen Reaction.
Acid-Base Neutralization Reactions:
A neutralisation reaction is a chemical process in which an acid and a base combine to produce salt and water as the end products.
H⁺ ions and OH⁻ ions combine to generate water during a neutralisation reaction. Acid-base neutralisation is the most common type of neutralisation reaction.
Example: Formation of Sodium Chloride (Common Salt):
HCl + NaOH → NaCl + H₂O
Hydrogen and Oxygen Reaction:
Water vapour is created when hydrogen gas (H₂) and oxygen gas (O₂) are combined directly. This reaction produces a lot of heat and releases a lot of energy.
Example: 2 H₂ + O₂ → 2 H₂O
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100 cm³ of a gas at 740 mm pressure at a certain temperature is taken. What will be the volume of the same mass of gas at 780 mm pressure at the same temperature?
Answers
Answer:
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CBSE
Chemistry
Grade 11
The Gaseous State
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Answer
What volume will a gas occupy at 740mm pressure which at 1480 mm occupies 500 cc? Temperaturebeingconstant.
Last updated date: 30th Dec 2022
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Answer
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Hint: Boyle in the mid 1600’s observed that the product of the pressure and volume of a gas are observed to be nearly constant provided that the temperature is kept constant. This is always true in the case of an ideal gas.
P×V=constant
This relationship between pressure and volume of an ideal gas is known as the Boyle's Law.
Complete answer:
Since it is given in the question that temperature can be assumed as constant, we can apply Boyle’s Law.
According to Boyle's Law we know that:
⇒P×V=constant
We can rewrite this as
⇒P1×V1=P2×V2
Where P1 is the pressure at the volume V1
P2 is the pressure at the volume V2
Thus from the given question we can say that:
P1 = 1480 mm
V1 = 500 cc
P2 = 740 mm
V2 = x
Thus we can rewrite the equation and substitute the above values and obtain the equation given below:
⇒V2=P1×V1P2
⇒V2=1480×500740
⇒V2=1000cc
Thus the volume of gas occupied at a pressure of 740 mm is 1000 cc.
Select the correct answer.
Based on the reactivities of the elements involved, which reaction will form products that are more stable than the reactants?
Answers
The correct option is B. CaBr2 + 2Na → 2NaBr + Ca because In option B, the reactants CaBr2 and Na are both metals with similar reactivities.
Which chemical reactions will result in more durable products than the reactants?Exothermic reactions release energy and are defined as producing products with higher stability (lower energy) than the reactants. The exothermic reaction that happens during a fire and releases energy in the form of heat and light is the combustion reaction.
Which substance will respond the quickest?In terms of reactivity, the metals that are listed in the periodic table's lower left corner are the most active. Lithium, sodium, and potassium, for instance, all interact with water.
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Question:
Based on the reactivities of the elements involved, which reaction will form products that are more stable than the reactants?
A. 2AlBr3 + 3Zn → 3ZnBr2 + 2Al
B. CaBr2 + 2Na → 2NaBr + Ca
C. MgBr2 + H2 → 2HBr + Mg
D. BaBr2 + Ca → CaBr2 + Ba
E. 2LiBr + Ba → BaBr2 + 2Li
1)Grignard reagent when reacted with methanol will yield A) ethanol (B) secondary alcohols (C) tertiary alcohols (D ropanol (E) primary alcohol
Answers
When the reaction of Grignard reagent reacted with methanol will yield a tertiary alcohol. Therefore, Option C tertiary alcohol is correct.
Contains a carbon-metal link, Grignard reagents are chemicals used in catalysis. They generally result from the anhydrous reaction of magnesium metal with an alkyl or aryl halide. Because of their high reactivity, Grignard reagents frequently act as nucleophiles in organic reactions.
An alkyl group from a Grignard reagent binds to the oxygen atom of methanol (CH3OH) when it interacts with the methanol, breaking the carbon-metal connection. A precursor alkoxide is created as a result. The equivalent alcohol is then produced by protonating the intermediate alkoxide.
The reaction of a Grignard reagent with methanol leads to the formation of a tertiary alcohol.
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What other products do you think contain tartrazine?
Answers
Answer:
It is found in confectionery, cotton candy, soft drinks, instant puddings, flavored chips (Doritos, Nachos), cereals (corn flakes, muesli), cake mixes, pastries, custard powder, soups (particularly instant or "cube" soups), sauces, some kinds of rice (paella, risotto, etc.), Kool-Aid, Mountain Dew, Gatorade, ice cream
Chrysocolla is a copper mineral that contains .016 % silicon. What is the mass of silicon present in 1.5kg of this mineral
Answers
Answer:
.24 mg
Explanation:
The mineral contains .016 % silicon
mass of the mineral = 1.5 kg
mass of silicon = 1.5 x .016 %
= 1.5 x .016 / 100
= 24 x 10⁻⁵ kg
= 24 x 10⁻² mg
= .24 mg .
16. Given the unbalanced equation:
_Al + CuSO4 → _A1,(SO2), + --Cu
When the equation is balanced using
the smallest whole-number coefficients,
what is the coefficient of AI?
(1) 1 (2) 2 (3) 3
(4) 4
Answers
Explanation:
Consider matrix A.
What is the inverse of A? Fill in the missing elements in the matrixs.Consider matrix A.
What is the inverse of A? Fill in the missing elements in the matrixs.
(2) 2.
Explanation:
2Al + 3CuSO4 → Al2(SO4)3 + 3Cu
Hence, now yet it's balanced chemical equation.
What’s the answer for this question which i have posted can I know the answers as possible
Answers
The change in internal energy = 2.701 x 10² kJ
Further explanationGiven
Heat absorbed by system = 1.69 x 10² kJ
Work done on system = 1.011 x 10² kJ
Required
The change in Internal energy
Solution
We can use the first law of Thermodynamics :
\(\tt \Delta U=Q+W\)
The sign rules for heat and work are set as follows:
• The system receives heat, Q +
• The system releases heat, Q -
• The system does work, W -
• the system accepts work, W +
Heat absorbed/receive heat from surrounding = Q+
Work done on the system = W+
and input the given values
\(\tt \Delta U= 1.69\times 10^2+1.011\times 10^2\\\\\Delta U=\boxed{\bold{2.701\times 10^2~kJ}}\)
What is a metal oxide + acid
Metal oxide + acid —> __+__
Answers
Answer:
Metal oxide + acid —> salt + water
Explanation:
The pressure inside a tire is measured as 28.0 pounds/inches^2. What is its pressure in newtons/centimeters^2
Answers
The pressure inside the tire is approximately 1.970796 newtons per square centimeter (N/cm²) when measured in those units.
To convert the pressure from pounds per square inch (psi) to newtons per square centimeter (N/cm²), we need to use the conversion factors between these units.
First, let's convert pounds to newtons:
1 pound = 0.45359237 kilograms
1 kilogram = 9.80665 newtons
Next, let's convert square inches to square centimeters:
1 square inch = 6.4516 square centimeters
Now, we can perform the conversion:
1 psi = (0.45359237 kg) × (9.80665 N/kg) / (6.4516 cm²)
≈ 0.070307 N/cm²
Therefore, the pressure inside the tire of 28.0 psi is approximately equal to 28.0 × 0.070307 N/cm², which is approximately 1.970796 N/cm².
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is magnesium oxide a metal
Answers
Answer:
Magnesia, or magnesium oxide, is a mineral composed of alkaline earth metals. The majority of today's magnesium oxide comes from calcining natural minerals.
Explanation:
I hope this helps you
:)
Which of these is NOT true about sandy soil?
A) It's gritty to the touch.
B) It crumbles, even when wet.
C) It's made of large particles.
D) It supports many kinds of plants.
Answers
985.2 moles of nitrogen, how many moles of ammonia can produce?
Answers
Answer:
985.2 moles of nitrogen can produce 1970.4 moles of ammonia.
Explanation:
The balanced chemical equation for the production of ammonia from nitrogen is:
N2 + 3H2 → 2NH3
From the balanced equation, we can see that 1 mole of nitrogen reacts with 3 moles of hydrogen to produce 2 moles of ammonia.
So, to determine how many moles of ammonia can be produced from 985.2 moles of nitrogen, we need to use the mole ratio from the balanced chemical equation as follows:
985.2 moles N2 x (2 moles NH3 / 1 mole N2) = 1970.4 moles NH3
Therefore, 985.2 moles of nitrogen can produce 1970.4 moles of ammonia.
Look at this picture and please help
Answers
Answer : The kinetic energy will be 24 J.
Explanation : Given,
Mass of marble = 3 kg
Velocity of a marble = 4 m/s
Formula used to calculate the kinetic energy is:
\(K.E=\frac{mv^2}{2}\)
where,
K.E = kinetic energy
m = mass
v = velocity
Now putting all the given values in this formula, we get:
\(K.E=\frac{3kg\times (4m/s)^2}{2}\)
\(K.E=24kg.m^2/s^2=24J\) \((1J=1kg.m^2/s^2)\)
Therefore, the kinetic energy will be 24 J.
The largest source of power generated in the US is
A)
fossil fuel combustion.
B)
nuclear.
C)
solar.
D)
wind.
Answers
Answer:
A. fossil fuel combustion
Explanation:
Which two planets share the similarity of having similar long-lasting storm systems?
Answers
the ph at one-half the equivalence point in an acid base titration was found o be 3.94. what might this unkown acid be
Answers
The pH at one-half the equivalence point in an acid-base titration was found to be 3.94. The pKa of the unknown acid is 3.94.
In an acid-base titration, the pH at the midpoint of the titration is equivalent to the pKa of the weak acid or weak base being titrated. In other words, the pH at the midpoint of a titration is equal to the negative logarithm of the dissociation constant (pKa) of the acid that is being titrated. The pKa value can be used to identify the unknown acid, since every acid has a unique pKa value.
The formula for the pH at the midpoint of a titration is:
pH = pKa + log([A-]/[HA])
where [A-]/[HA] is the ratio of the concentrations of the acid and its conjugate base at the midpoint of the titration. Since the titration is half-complete at the midpoint, the concentration of acid [HA] is equal to the concentration of conjugate base [A-].
Thus, the formula can be simplified as:
pH = pKa + log(1) = pKa .Therefore, in this case, the pKa of the unknown acid is 3.94.
To identify the acid, we can consult a table of pKa values and look for an acid with a pKa value of 3.94. One example of an acid with a pKa of 3.94 is 4-methoxybenzoic acid (pKa = 3.92).
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HELPP!
A body travels 10 m during the first five seconds of its travel and it travels a total of 30 m over the first 10 seconds of it shower what is its average speed during the time from T=5 seconds to T=10 seconds
Answers
17. HAZWOPER training and certification recognizes:
a. A large number (as much as 80%) will self-present or be self-referred victims
b. Awareness level training will promote proper initial triage actions
c.
Victims will use any entrance they can enter at the hospital, in addition to the
emergency department entrance
d. Both A and C
Answers
HAZWOPER training and certification recognize:
a large number (as much as 80%) will self-present or be self-referred victimsVictims will use any entrance they can enter at the hospital, in addition to the emergency department entranceThe correct option is both A and C
What is the HAZWOPER training and certification?HAZWOPER (Hazardous Waste Operations and Emergency Response) training and certification recognize that a large number of victims (as much as 80%) in hazardous waste incidents or emergencies will self-present or be self-referred for medical treatment.
Additionally, HAZWOPER training acknowledges that victims may use any entrance they can access at a hospital, not just the emergency department entrance.
This is because individuals affected by hazardous materials may arrive at different areas of the hospital seeking medical assistance.
Therefore, option d. Both A and C are correct statements regarding the recognition of HAZWOPER training and certification.
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Write a balanced chemical equation for the standard formation reaction of liquid chloroform
Answers
A balanced chemical equation for the standard formation reaction of liquid chloroform is :
CH₄ + 3Cl₂ -----> CHCl₃ + 3HCl
The methane combine with chlorine form the trichloro methane or the chloroform.
CH₄ + Cl₂ -----> CHCl₃ + HCl
to balance the equation , the number of atoms in the product side is equal to the reactant side :
reactant product
C 1 1
H 4 2
Cl 2 4
to balance the equation miltiply 3 in Cl₂ and 3 in HCl, we get :
CH₄ + 3Cl₂ -----> CHCl₃ + 3HCl
now the number of atoms in the product side is equal to the reactant side .
Thus, A balanced chemical equation for the standard formation reaction of liquid chloroform is :
CH₄ + 3Cl₂ -----> CHCl₃ + 3HCl
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