The conversion of acetyl chloride to methyl acetate occurs via the following two-step mechanism: Reaction sequence of acetyl chloride to methyl acetateAccess the text alternative for PROBLEMS Kinetics and Rate Laws 6.49. Add curved arrows to show the movement of the electrons in each step. Write the rate equation for this reaction, assuming the first step is rate-determining. If the concentration of were increased 10 times, what would happen to the rate of the reaction? If the concentrations of both and were increased 10 times, what would happen to the rate of the reaction? Classify the conversion of acetyl chloride to methyl acetate as an addition, elimination, or substitution.

Answer:

The first one

Explanation:

Both the products and reactants in the first equation have the same number of moles and will not be affected by a change in volume.

The surface area of the carbon adsorbent is approximately 2.63 x 10³ square meters per gram.

To calculate nm and K from the given information, use the equation for the Langmuir isotherm:

q/n = 1/K (P/P₀) + 1/nm

​

where:

q = amount of gas adsorbed (mmol/g)

n = amount of gas adsorbed per unit mass of adsorbent (mmol/g)

K = equilibrium constant

P = pressure (kPa)

P0 = saturation pressure (kPa)

nm = maximum adsorption capacity (mmol/g)  

From the given data:

Gradient = 0.391 g mmol-1

Intercept = 0.168 kPa g mmol-1

Comparing this with the Langmuir isotherm equation, we can equate the gradient and intercept to the corresponding terms:

Gradient = 1/nm

Intercept = 1/K

Solving for nm and K:

nm = 1/Gradient = 1/0.391  mmol/g

K = 1/Intercept = 1/0.168  kPa g mmol-1

Now, to determine the surface area, use the equation:

Surface area = nm x Avogadro's number x area per molecule

Given:

N₂ occupies 1.62 x 10⁻¹⁹ m²/molecule

Surface area = nm x 6.022 x 10²³ x 1.62 x 10⁻¹⁹ m²/molecule

Substituting the value of nm:

Surface area = (1/0.391) mmol/g x 6.022 x 10²³ x 1.62 x 10⁻¹⁹ m²/molecule

To convert mmol to moles, divide by 1000.

Surface area = (1/0.391) mol/g x (1/1000) x 6.022 x 10²³ x 1.62 x 10⁻¹⁹m²/molecule

Surface area ≈ 2.63 x 10³ m²/g

Therefore, the surface area of the carbon adsorbent is approximately 2.63 x 10³ square meters per gram.

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They appear as the trait over a recessive allele. Statement C) is true about the dominant alleles.

Dominant alleles are genetic variants that, when present in an individual's genotype, are expressed phenotypically, meaning they determine the visible or observable traits. Dominant alleles are represented by capital letters, while recessive alleles are represented by lowercase letters in genetics.

In terms of inheritance, if an individual has at least one copy of the dominant allele, it will be expressed in the phenotype, regardless of the presence of a recessive allele. This is because dominant alleles exert their influence over recessive alleles, thus "dominating" their expression.

To illustrate this, let's consider a specific example using a trait controlled by a single gene with two possible alleles: dominant (A) and recessive (a). If an individual is homozygous dominant (AA), meaning they possess two copies of the dominant allele, the dominant trait will be expressed.

However, if an individual is homozygous recessive (aa), with two copies of the recessive allele, the recessive trait will be expressed since there are no dominant alleles to override it.

Therefore, dominant alleles appear as the trait over recessive alleles, regardless of the presence or absence of a recessive allele. The presence of even a single copy of the dominant allele is sufficient for its expression in the phenotype. Option C

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Answer:

there is a gap in the human brain and the skull filled with fluid. woodpecker and bighorn sheep do not have this, so the brain doesn't recoil and hit the skull.

The molarity of the solution is 0.01.

Brainliest?

The value of the absorbance as the concentration of the solution increases then the higher the concentration the higher its absorbance

According to the lambert law states that the amount of energy absorbed or transferred by a solution is proportional to the molar absorptivity of the solution and the concentration of the solute this means that concentrated solution absorbed more light than dilute solution then the absorbance is directly proportional to the concentration and as the concentration goes up the more radiation is absorbed and the absorbance goes up  the higher the concentration the higher its absorbance

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One factor that affects sample absorbance is concentration (c). As the concentration increases, more radiation is expected to be absorbed and the absorption increases. Therefore, absorbance is directly proportional to concentration. The higher the concentration, the higher the absorbance.

The second element is the path length . The longer the path length, the more molecules are in the path of the radiation beam, thus increasing the absorbance. Therefore, path length is directly proportional to concentration.

If concentrations are given in moles/liter and path lengths are given in centimeters, the third factor is known as molar absorbance ( ). Some research areas talk more about extinction coefficients. When spectroscopy is used to measure the concentration of a sample, a specific wavelength of radiation is selected to irradiate the sample. As you probably know from other experience, certain chemical species absorb certain wavelengths of radiation and not others. Molar absorptivity is a measure of how much a species absorbs at a particular wavelength of radiation to which it is exposed. The process of absorbing electromagnetic radiation involves the excitation of species from ground states to higher energy excited states. This process is called an excited transition, and excited transitions have probabilities of occurrence. It is appropriate to talk about the allowed range of possible energy transitions within a chemical species.

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Hi there!

\(\large\boxed{\text{B. Producer}}\)

The only organisms in a food web that do not get energy from other organisms are producers. These are autotrophs (ex: plants or phytoplankton) that use photosynthesis to produce energy. This means that these organisms only intake water and sunlight rather than nutrients from other organisms (consumers).

Answer:

a. Br2(I)+2 KI(aq)》2KBr(aq)+I2

Answer:

A reaction rate is generally the speed (or rate) at which a chemical reaction takes place. It is usually expressed in terms of volume or a unit of time.

Answer:

the speed at which a chemical reaction takes place

Answer:

A. last  F first E second C thrid b foruth A five

Explanation:

The options of the question is not given so the options are;

(1) Mn(s)

(2) Cu(s)

(3) Ni(s)

(4) Ba(s)

Answer: Mn(s)

Explanation:

The spontaneous reaction depends on the Eo value. The positive Eo value are spontaneous and the negative Eo values are not spontaneous.

so, here the Eo values are:

Eo Zn2+/Zn = -0.763v

Eo Mg2+/Mg = 2.37v

Eo Mn2+/Mn = -1.18v

Therefore, Eo cell (with Zn as one of the half-cell) =  Eo Zn2+/Zn - Eo Mn2+/Mn

=  -0.763 - (-1.18)

 = 0.417v

Whereas, Eo cell (with Mg as one of the half-cell) =  Eo Mg2+/Zn - Eo Mn2+/Mn

=  -2.37 - (-1.18) = -1.19v

Thus, Mn(s) metal will spontaneously react because it has a positive  Eo value and  Zn2+(aq), but will not spontaneously react with Mg2+(aq) because it has negative Eo value.

In order to answer this question we will need the properly balanced reaction, which the question already gave us:

C5H12 + 8 O2 -> 5 CO2 + 6 H2O

Then we need to focus on the compounds that the question is asking, which are C5H12 and 5 CO2, from the reaction we can also identify the molar ratio between both molecules, 1:5, that means that for every mole of C5H12, we will end up with 5 moles of CO2

Now let's find out how many moles of C5H12 are in 25.5 grams of it, we will use its molar mass to find the answer, molar mass is 72.15 g/mol

72.15 g = 1 mol

25.5 g = x moles

x = 0.35 moles of C5H12

Now we have 0.35 moles of C5H12, we know that molar ratio is 1:5, now let's see how many moles of CO2 we will have

1 C5H12 = 5 CO2

0.35 C5H12 = x CO2

x = 1.75 moles of CO2

And now we will do a similar step using CO2 molar mass in order to find the final mass, molar mass for CO2 is 44.01 g/mol

44.01 g = 1 mol

x grams = 1.75 moles

x = 77.02 grams of CO2

The mass of the nitrogen in solution of N₂O₂, n = 4.55 g.

To calculate the mass of nitrogen using formula,

n = W / w

where,

n is mass of nitrogen

W is molecular weight of N₂O₂

w is weight of solution

So, given data are :

w = 13.2 g

W = 60.013 g

n = ?

Now, putting the values we get,

n = 60.013 / 13.2

n = 4.55 g

Hence, the mass of the nitrogen in solution of N₂O₂, n = 4.55 g.

The inorganic substance dinitrogen dioxide has the chemical formula N₂O₂. It is conceivable to have many structural isomers. Based on ab initio calculations, the covalent bonding pattern O=N-N=O is projected to be the most stable isomer and is the only one that has been created experimentally.

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Answer:

4 millllllermeeters jb

Answer:

H

Explanation:

Example,

HCl for hydrochloric acid

H2SO4 for sulphuric acid

HNO3 for nitric (v) acid

Answer:

B) A drawn bow is released, causing an arrow to fly across the field

Explanation:

Potential energy can be thought of as "potential" to do something. For eg, putting a ball on top of hill causes the ball to have the potential to roll down the hill if released. Here the ball converts the potential energy into kinetic energy (energy of motion) to roll down.

Similarly, the bow has been stretched (potential to fly if released), and when its released, it converts the potential energy into kinetic energy.

Conduction is the transfer of thermal energy through direct contact. Convection is the transfer of thermal energy through the movement of a liquid or gas.

So I think you should go with the 3rd option.

Hope this was helpful.

Answer:

What the other guy said

Explanation:

Answer:

To resolve this, we need to place the coefficient “2” in front of the sodium in the reactant, to give the equation shown below. 2 Na (s) + Cl 2 (g) → 2 NaCl (s) In this equation, there are two sodiums in the reactants, two sodiums in the products, two chlorines in the reactants and two chlorines in the products; the equation is now balanced.

Explanation:

Answer: Na+ (8%)

Explanation:

171mL of 0.245 M Cu(NO3)2 (MM=187.56 g/mol) contains 7.86g of solute. The correct answer is option a, 171 mL.

Firstly, in order to calculate the volume of a solution, we need to use the following formula:

molarity = moles of solute / volume of solution in liters.

Now, we have to calculate the number of moles of Cu(NO3)2 in 7.86 g of solute. For this purpose we can easily use the molar mass of Cu(NO3)2 to convert the mass to moles:

moles = mass / molar mass

which means moles = 7.86 g / 187.56 g/mol

moles = 0.0418 mol

Further, we have to use the molarity of the solution to calculate the exact volume of solution needed to contain this amount of solute which we can do by using following formula:

molarity = moles of solute / volume of solution in liters

Substituting the values, we get

0.245 M = 0.0418 mol / volume of solution in liters

volume of solution in liters = 0.0418 mol / 0.245 M

volume of solution in liters = 0.1706 L

Lastly, we also need to convert the volume from liters to milliliters to get the right answer:

volume of solution in milliliters = 0.1706 L x 1000 mL/L

volume of solution in milliliters = 170.6 m, which is the final answer.

Therefore, the answer is A.) 171 mL.

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The process for breaking tasks into further smaller units is as follows: First: Determining the strategy. Second: Identifying the highest level components of work to be accomplished. Third: Breaking down work process into small units.

When the mass of the container and its contents no longer changes on heating we should stop decomposing a task.

Decomposition is a complicated technique. Natural remember is broken down into carbon dioxide and the mineral kinds of nutrients like nitrogen. It's also converted into fungi and micro organism through these organisms feeding on the organic material and reproducing.

To test if it the reaction is a primary-order reaction, plot the herbal logarithm of a reactant attention versus time and notice whether the graph is linear. If the graph is linear and has a negative slope, the response ought to be a primary-order reaction.

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The process of dividing tasks into smaller chunks is as follows:

Step 1 : Establish a strategy.

Step 2 : identify the top-level component of the work to be done.

Step 3 : break down the work process into smaller units.

Step : Name the unit.

Step 5 : Make sure tasks are broken down to the lowest unit if necessary

It is very important to stop decomposing tasks at some point to avoid work efficiency and inefficient use of resources. Stop decomposing tasks when you know the exact result you want after each task and have accurately estimated the time and cost of each task.

Decomposition or putrefaction is the process by which dead organic matter breaks down into simple organic or inorganic matter such as carbon dioxide, water, simple sugars and inorganic salts.

This process is part of the nutrient cycle and essential for the recycling of finite materials occupying the physical space of the biosphere. An organism's body begins to decompose shortly after death.

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Answer:

Compaction.

Explanation:

All the others are before this.

Answer:

D. 110 Joules

Explanation:

Work = Force x Distance

The given force here is 55 Newtons, and the distance the object moved against the force is 2 meters.

Therefore 2 x 55 = 110 Joules of Work.

Hope this helped!

There is no reason to run these solutes at the 20 MWCO because they are both much smaller than the MWCO of the membrane.

The MWCO (molecular weight cut off) is the molecular weight of a solute at which it will be retained by a membrane during a process such as ultrafiltration or dialysis. If a solute has a molecular weight higher than the MWCO of a membrane, it will be retained and not pass through the membrane. If the molecular weight of a solute is lower than the MWCO, it will pass through the membrane.

In this case, glucose has a molecular weight of 180 g/mol (6 carbons x 12 g/mol per carbon + 6 oxygens x 16 g/mol per oxygen) and albumin has a molecular weight of approximately 81,942 g/mol (607 amino acids x 135 g/mol per amino acid). Both of these solutes have molecular weights that are much lower than 20,000 g/mol, which is a typical MWCO for ultrafiltration or dialysis membranes.

They would both easily pass through the membrane and be lost during the process. Instead, a membrane with a much lower MWCO would be needed if we wanted to retain these solutes during a process such as ultrafiltration or dialysis.

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6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.

Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.

Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:

(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))

The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:

(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol

Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.

It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.

Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.

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De Broglie contributed to the development of the modern model of atoms by describing the wave properties of particles. Option E.

Louis de Broglie was a French physicist who made significant contributions to the development of quantum mechanics.

In his doctoral thesis, he proposed that particles, such as electrons, have both particle-like and wave-like properties. This idea became known as wave-particle duality and laid the foundation for the development of the modern model of the atom.

According to de Broglie's theory, particles can exhibit wave-like behavior and have a wavelength that is inversely proportional to their momentum.

This theory was later experimentally confirmed in a series of experiments that demonstrated the diffraction of electrons and other particles.

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Explanation: Collagative properties are characteristics of a solution that is dependent on the ratio of solute particles to to solvent particles.

Answer: D) Melting point acceleration.