whaT will happen to the ratio of partial pressure of pcl5 to partial pressure of pcl3 if the temperature is raised

To calculate the total pressure in the flask, we need to convert all the partial pressures to the same unit and then add them together. We can convert the partial pressures of oxygen and ammonia to atm using the following conversions:

1 atm = 760 torr

1 atm = 101.325 kPa

Partial pressure of oxygen in atm = 643 torr / 760 torr/atm = 0.846 atm

Partial pressure of ammonia in atm = 2865 kPa / 101.325 kPa/atm = 28.27 atm

Now we can add up all the partial pressures in atm:

Total pressure in atm = Nitrogen partial pressure in atm + Oxygen partial pressure in atm + Ammonia partial pressure in atm

Total pressure in atm = 9.84 atm + 0.846 atm + 28.27 atm

Total pressure in atm = 38.956 atm

Therefore, the total pressure in the flask is 38.956 atm (rounded to three decimal places).

At equilibrium, the concentrations of the reactants and products will remain constant. For the given gas phase reaction, Keq = 2.80 x 10^2 at 999 K, which means that at equilibrium, the concentration of SO3 will be greater than the concentrations of SO2 and O2. This is because Keq represents the ratio of the products to the reactants at equilibrium. In this case, the equilibrium constant is relatively large, which indicates that the reaction favors the production of SO3.

To understand the significance of the equilibrium constant, consider the following example: if the initial concentrations of SO2 and O2 are increased, the reaction will shift to the right to maintain the equilibrium constant, resulting in an increase in the concentration of SO3. On the other hand, if the concentration of SO3 is increased, the reaction will shift to the left to maintain the equilibrium constant, resulting in a decrease in the concentrations of SO2 and O2.

Overall, the equilibrium constant provides valuable information about the direction and extent of a reaction at equilibrium. It helps us understand how changes in concentration, pressure, or temperature can affect the equilibrium position and ultimately, the amount of products formed.

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When two substituents occur on a benzene ring, three isomers are possible. The location of these substituents can be identified by using a system of nomenclature called ortho, meta, and para.

The ortho isomer has the two substituents located on adjacent carbon atoms of the benzene ring. The meta isomer has the two substituents located on carbon atoms that are separated by one carbon atom. Lastly, the para isomer has the two substituents located on opposite sides of the benzene ring, or two carbons apart from each other.

This nomenclature system is essential in organic chemistry since it allows chemists to differentiate between isomers and predict the behavior of the molecules. The location of substituents on a benzene ring can significantly affect the reactivity and properties of the compound. For instance, ortho and para isomers are typically more reactive than the meta isomer because the adjacent positions provide an opportunity for the substituents to interact with each other.

Overall, understanding nomenclature is critical for chemists to communicate effectively and convey accurate information about compounds.

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DCMU is an herbicide that specifically targets photosynthetic electron flow from photosystem II (PSII) to the cytochrome b6f complex.

The herbicide will block the electron transport chain, leading to a decrease in the production of ATP and NADPH, which are critical components of photosynthesis. Furthermore, the reduction in ATP and NADPH production will cause a reduction in O2 production, as these molecules are required for the light-dependent reactions that generate oxygen. In plants sensitive to DCMU, the herbicide will effectively inhibit the electron flow, leading to a decrease in both ATP synthesis and O2 production. This reduction in energy production will ultimately lead to a decrease in plant growth and survival, making DCMU a potent herbicide for controlling unwanted plant growth.

Production of oxygen will decrease because of reliance on a Photosystem II with inadequate electrons. If photosystem II is unable to transmit electrons to the subsequent electron carrier in the thylakoid membrane, water oxidation and oxygen synthesis will slow down or stop. (The DCMU blockade may not be completely effective.)

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Based on the given reaction: Hâ (g) + Iâ(g) â 2HI 9G) + heat , The equilibrium reaction is exothermic.

The given equation represents a chemical equilibrium reaction involving the formation of HI gas from Hâ and Iâ gases. The equation also mentions the release of heat as a product of the reaction.

The release of heat in a reaction indicates that the reaction is exothermic, meaning that it releases energy into the surroundings.

Therefore, based on the given equation and the information provided, we can conclude that the equilibrium reaction is exothermic.

In summary, the equilibrium reaction represented by Hâ (g) + Iâ(g) â 2HI (g) + heat is exothermic.

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A molecular species with one or more unpaired electrons in an MO is paramagnetic species and will be attracted to a magnetic field, whereas a species with no unpaired electrons in its MO is diamagnetic species and will be slightly repelled by a magnetic field.

A molecular species with one or more unpaired electrons in an MO is known as a paramagnetic species. These unpaired electrons cause the species to have a net magnetic moment and be attracted to a magnetic field.

This is because the magnetic field causes the unpaired electrons to align their spins in the direction of the field, resulting in a stronger attraction. Examples of paramagnetic species include oxygen, nitrogen, and many transition metal ions.
On the other hand, a species with no unpaired electrons in its MO is known as a diamagnetic species. These species have no net magnetic moment and are slightly repelled by a magnetic field.

This is because the magnetic field causes the electrons in the MO to pair up and cancel out their magnetic moments. Examples of diamagnetic species include helium, neon, and many non-transition metal ions.
Overall, the presence or absence of unpaired electrons in the MO of a molecular species plays a significant role in determining its magnetic properties and behavior in a magnetic field.

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The molarity (M) of the solution is approximately 11.1 M and the molality (m) of the solution is approximately 14.2 m.

To calculate the molarity, we first need to calculate the mass of H3PO4 present in 1 L of the solution. Let the mass of the solution be x g, then the mass of H3PO4 present in the solution will be 0.345x g. Using the density of the solution, we can calculate the volume of the solution as x/1.211 mL. Therefore, the concentration of H3PO4 in the solution will be 0.345x/(1.211x) = 0.285 M. Since 1 L of solution contains 1000 mL, the molarity of the solution is approximately 11.1 M. To calculate the molality, we need to calculate the mass of H3PO4 present in 1 kg of the solvent (water). Let the mass of the solution be x g, then the mass of H3PO4 present in the solution will be 0.345x g. Since the density of the solution is 1.211 g/mL, the mass of the solvent (water) present in the solution will be (1 - 0.345)x g. Therefore, the molality of the solution will be (0.345x g / 98 g/mol) / ((1 - 0.345)x g / 1000 g) = 14.2 m. Therefore, the molality of the solution is approximately 14.2 m.

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Humans will never be able to "see" atoms without the aid of instruments since:

1. Atoms are extremely small: The size of an atom is around 0.1 to 0.5 nanometers (1 nanometer = 1 billionth of a meter). This is far beyond the resolving power of the human eye, which can only see objects larger than approximately 0.1 millimeters.

2. Limitations of the human eye: The human eye relies on visible light to see objects. Atoms are smaller than the wavelengths of visible light (400-700 nanometers), so they cannot be seen directly using our natural vision.

3. Atoms are in constant motion: Even if our eyes could somehow perceive atoms, they are constantly moving due to their kinetic energy, which would make it difficult to visually focus on a single atom.

In summary, humans will never be able to see atoms without the aid of instruments due to their incredibly small size, limitations of the human eye, and the constant motion of atoms. Instruments such as electron microscopes and atomic force microscopes have been developed to allow us to study and visualize atoms indirectly.

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The equation HA + H2O ⇌ A- + H3O+ represents the ionization of an acid in an aqueous solution. In this equation, HA is the acid, A- is the conjugate base, and H3O+ is the hydronium ion.

Ka, also known as the acid dissociation constant, is a measure of the strength of an acid. It represents the extent to which the acid ionizes in water.

A large value of Ka indicates that the equilibrium lies far to the right, which means that the acid is strong. This means that the acid will completely ionize in water to form A- and H3O+. In contrast, a weak acid will only partially ionize in water, and the equilibrium will favor the formation of HA rather than A- and H3O+.

In summary, a large value of Ka indicates that the acid is strong, while a small value of Ka indicates that the acid is weak. The strength of an acid is determined by the extent to which it ionizes in water. A strong acid completely ionizes in water, while a weak acid only partially ionizes.

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The difference between ionic and covalent bonding lies in the way the electrons are shared or transferred between atoms, leading to different types of bonding and different properties in the resulting compounds.

Ionic compounds are made up of positively and negatively charged ions that are held together by electrostatic forces.

The bonding in ionic compounds is non-directional because the ions are arranged in a regular pattern and the electrostatic forces act equally in all directions, creating a three-dimensional lattice structure.

This means that the bonding is not limited to specific directions or angles.

On the other hand, covalent bonding in molecules occurs when atoms share electrons to form a bond.

The sharing of electrons creates regions of electron density around the atoms, which can lead to directional bonding.

The electrons tend to be more attracted to one atom than the other, leading to a partial positive or negative charge on each atom.

This can cause the bonding to be directional, meaning that the atoms have a specific orientation or arrangement in the molecule.

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The pH of a solution of acetic acid that is 3.0% ionized is 2.64.

To calculate the pH of a solution of acetic acid that is 3.0% ionized, we need to use the Ka expression for acetic acid:
Ka =\frac{ [H^+][CH_{3}COO^-]}{[CH_{3}COOH]}
We can assume that the concentration of acetic acid is equal to the concentration of acetate ion (CH3COO^-), since only 3.0% of the acid is ionized. Let's call this concentration x. Then, the concentration of undissociated acetic acid is (0.03 - x).
Substituting these concentrations into the Ka expression, we get:
1.8 * 10^{−5} =\frac{ [H^+][x]}{[(0.03 - x)]}
Solving for x using the quadratic formula, we get:
x = 0.00181 M
Now, we can use the equation for the pH of a weak acid:
pH = pKa + log(\frac{[A^-]}{[HA]})
where pKa = -log(Ka) = 4.74 for acetic acid.
Plugging in the values, we get:
pH = 4.74 + log(\frac{0.00181}{0.0282}) = 2.64
Therefore, the answer is (a) 2.64.

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The production of 1-methyl-3-nitrobenzene involves a mechanism known as nitration. This mechanism occurs through the reaction between nitric acid and an aromatic compound in the presence of a strong acid catalyst, typically sulfuric acid.

The reaction proceeds through the formation of a nitronium ion (NO2+), which acts as the electrophile and reacts with the aromatic compound to form a nitroarene.

In the case of 1-methyl-3-nitrobenzene, the starting material is toluene (methylbenzene). The reaction proceeds through the following steps:

1. Protonation of nitric acid by sulfuric acid to form nitronium ion (NO2+)
HNO3 + H2SO4 → NO2+ + HSO4- + H2O

2. Attack of the electrophilic nitronium ion on the aromatic ring of toluene to form an intermediate carbocation.
NO2+ + CH3C6H5 → CH3C6H4NO2+ + H+

3. Deprotonation of the intermediate carbocation by the acid catalyst to form the final product, 1-methyl-3-nitrobenzene.
CH3C6H4NO2+ + HSO4- → CH3C6H4NO2 + H2SO4

The reagents needed for this reaction are nitric acid, sulfuric acid, and toluene.

In summary, the production of 1-methyl-3-nitrobenzene involves the nitration mechanism, which is a common method for the synthesis of nitroarenes.

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The correct answer for the question "Demonstrates ferrous iron" is b. Turnbull blue reaction. The Turnbull blue reaction is a method for detecting ferrous iron ions in a solution.

It is based on the reaction of ferrous ions with potassium ferricyanide to form a deep blue precipitate of ferric ferrocyanide. This reaction is specific to ferrous ions and does not occur with ferric ions, which is why it is a suitable method for detecting ferrous iron.
On the other hand, the Prussian blue reaction is also a method for detecting iron, but it is used to detect both ferrous and ferric iron ions. It involves the reaction of iron ions with potassium ferricyanide and ferric chloride to form a blue precipitate of Prussian blue. This reaction is useful for detecting iron in biological samples, including blood and tissues.
Therefore, the correct option is b. Turnbull blue reaction, as it specifically demonstrates the presence of ferrous iron ions in a solution. It is important to use the appropriate method for detecting iron ions to avoid any false positive or false negative results.

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The given statement "Some of the excess reagent is left over after the reaction is complete" is true. In most chemical reactions, one reactant is used up completely before the reaction stops.

However, it is common for one reactant to be in excess, meaning that more of it is present than is needed for the reaction to occur. This excess reactant does not participate in the reaction and is left over after the reaction is complete. This is why it is important to calculate the amount of each reactant needed in a reaction so that there is not too much excess left over. The excess can sometimes be toxic or hazardous, so it is important to dispose of it properly.

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If water is present during the Grignard formation, the possible byproduct that may form is (b) benzophenone.

Grignard reagents are highly reactive organometallic compounds, usually represented by the general formula RMgX, where R is an alkyl or aryl group, and X is a halide (e.g., chloride, bromide, or iodide). They are sensitive to water and other protic solvents.
The presence of water can cause Grignard reagents to react with it, resulting in the formation of unwanted side products. In the case of your question, the water could react with the Grignard reagent to hydrolyze it, leading to the formation of benzophenone. This reaction would involve the Grignard reagent losing its halogen group (such as bromide) and becoming an alkyl or aryl group bonded to magnesium hydroxide, which then breaks down further to form the byproduct.
To ensure the success of a Grignard reaction, it is essential to use anhydrous (water-free) solvents and exclude moisture from the reaction system. By maintaining dry conditions throughout the process, the formation of undesired side products like benzophenone can be avoided, leading to higher yields of the desired product.

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Explanation:

2,4-dinitrophenol (DNP) is an uncoupler that disrupts the normal process of oxidative phosphorylation in cells. In the presence of DNP, the energy produced by the electron transport chain is dissipated as heat, rather than being used to generate ATP (the primary source of energy for cells). This has two main effects that can explain the weight loss and higher than normal body temperature observed in people who took the drug:

1. Increased energy expenditure: Since DNP causes the energy produced by the electron transport chain to be dissipated as heat, the body is forced to burn more calories in order to produce the same amount of ATP as it would in the absence of DNP. This can lead to weight loss, as the body is using more energy than it is taking in from food.

2. Increased body temperature: Since the energy produced by the electron transport chain is being dissipated as heat, this can lead to an increase in body temperature. This effect can be especially pronounced in individuals who take high doses of DNP or who have impaired liver function, as the drug can accumulate in the body and cause excessive heat production.

Both of these effects of DNP are potentially dangerous, as they can lead to severe overheating, dehydration, and even death. In addition, DNP has other toxic effects on the body, such as causing damage to the liver and other organs, and is no longer used as a weight-loss drug.

A catalyst that is present in the same phase as the reacting molecules is called a homogeneous catalyst.

This type of catalyst functions by forming temporary intermediate compounds with the reactants in the same phase, leading to increased reaction rates. Homogeneous catalysts are commonly used in organic chemistry, particularly in reactions involving polar molecules.

They are highly effective at increasing reaction rates and selectivity, and they often allow reactions to occur at lower temperatures and pressures than would be possible without a catalyst. However, one drawback of homogeneous catalysts is that they can be difficult to separate from the products of the reaction.

Nevertheless, homogeneous catalysts are an important tool in the chemist's toolbox, and they have been used to develop many important industrial processes. Hence, homogeneous catalyst is the catalyst that is present in the same phase as the reacting molecules.

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An aqeuous solution contains 0.050 M of CH[tex]_3[/tex]NH[tex]_2[/tex]. 1.34x 10⁻⁷ is the  concentration of hydroxide ion in the solution in Molarity.

A diatomic anion having the chemical formula OH is hydrogen oxide. It has an electrical charge that is negative and is made up of two atoms of oxygen and hydrogen that are bound together through a single covalent bond. It is a crucial yet typically insignificant component of water. It serves as a base, ligand, nucleophile, catalyst, and nucleophile.

CH₃NH₂ + H₂O ⇌ CH₃NH₃⁺ + OH⁻

Kb(CH₃NH₂) = 4.4 x 10⁻⁴

Ka x Kb = Kw

Ka = Kw / Kb = (1.0 x 10⁻¹⁴) / (4.4 x 10⁻⁴) = 2.27 x 10⁻¹¹

                     CH₃NH₃⁺ + H₂O ⇌ H₃O⁺ + CH₃NH₂

Initial:                      0.050M            0 0

Change:                      -x                     +x +x

Equilibrium:                  0.150-x             x x

Ka = [H₃O⁺][CH₃NH₂] / [CH₃NH₃⁺] = x² / (0.150-x)

2.27 x 10⁻¹¹ = x² / 0.150

x = 7.29 x 10⁻⁶

[H⁺][OH⁻]=10⁻¹⁴

[OH⁻]=10⁻¹⁴/7.29 x 10⁻⁶= 1.34x 10⁻⁷

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The expected side reaction of 2-methyl-2-butanol with a strong acid, with or without a nucleophile present, is the formation of a carbocation followed by a rearrangement leading to a more stable carbocation.


1. When 2-methyl-2-butanol reacts with a strong acid, it first loses a water molecule (H2O) to form a carbocation.
2. The initial carbocation formed is a secondary carbocation.
3. Due to the presence of a neighboring methyl group, a 1,2-hydride shift occurs, leading to the formation of a more stable tertiary carbocation.
4. If a nucleophile is present, it will attack the tertiary carbocation to form a new compound. If no nucleophile is present, the reaction will end at the tertiary carbocation stage.

The side reaction of 2-methyl-2-butanol with a strong acid involves the formation and rearrangement of carbocations, and the final product depends on the presence or absence of a nucleophile.

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If you are unsure which layer is which in an extraction procedure, there are a few steps you can take to try and identify them.

One approach is to carefully observe the physical properties of each layer, such as color, viscosity, and density. For example, the aqueous layer is typically clear or pale yellow in color, while the organic layer may be darker and more viscous.
You can also perform a simple test to determine which layer is which. One common method is to add a small amount of water to the mixture and observe which layer the water separates into. Since water is more polar than many organic solution, it will typically dissolve in the aqueous layer and not in the organic layer.
If you are still unsure which layer is which, you may need to consult a reference or an expert in the field to help you identify them. In any case, it is important to take care when working with extraction procedures, as improper identification of layers can result in loss of product or inaccurate analysis.

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The equilibrium shifts in the direction that consumes or absorbs the excess heat namely heat.

When discussing equilibrium shifts in the context of heat, we can use the terms Le Chatelier's principle and endothermic/exothermic reactions. Here's an answer using these terms:

The equilibrium shifts in the direction that consumes the added component, namely heat. According to Le Chatelier's principle, when a change in temperature occurs in a system at equilibrium, the system will adjust to counteract the change. If heat is added to an endothermic reaction, the equilibrium will shift in the direction that consumes the heat. Conversely, if heat is removed from an exothermic reaction, the equilibrium will also shift in the direction that consumes the heat.

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A large value of k (10⁹ or higher) indicates a strong correlation between two variables, while a small value of k (10 or lower) indicates a weak correlation between two variables.

Correlation is a statistical measure that shows how two variables are related to each other. It is a measure of how much one variable can be predicted from another. It is expressed as a number between -1 and 1, where a correlation of -1 means that there is a perfect negative linear relationship between the two variables, a correlation of 0 means no relationship between the two variables and a correlation of 1 means that there is a perfect positive linear relationship between the two variables. Correlation can be used to measure the strength and direction of the relationship between two variables. It is a useful tool for researchers to determine if there is any meaningful relationship between two variables and to make predictions about future outcomes.

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The dissociation reaction that occurs to the least extent is D) H3PO4 + H2O → H3O+ + H2PO4−.

H3PO4 is a weak acid, meaning it does not completely dissociate in water. It only partially ionizes, so the concentration of H3O+ and H2PO4− ions formed will be lower compared to the other acid dissociation reactions listed.

The other reactions involve strong acids that readily dissociate in water to a greater extent, resulting in higher concentrations of H3O+ and anions formed.Therefore the correct option for this question is D.

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Out of the given choices, the alcohol with the equal-length carbon chain will have the highest boiling point. This is due to the presence of hydrogen bonding between the hydroxyl (-OH) functional group of the alcohol molecules.

The intermolecular hydrogen bonding leads to stronger intermolecular forces of attraction, requiring more energy to break the bonds and therefore increasing the boiling point.
In comparison, aldehydes have a carbonyl group (-CHO) which can form dipole-dipole interactions with other molecules but cannot participate in hydrogen bonding due to the absence of a hydrogen atom bonded to the oxygen atom. Alkanes have only weak van der Waals forces between the molecules, resulting in the lowest boiling points among the three compounds.
Furthermore, the boiling point of a compound is influenced by factors such as molecular weight, branching, and polarity. However, in this particular scenario, the presence of the hydroxyl functional group in the alcohol makes it the most polar and capable of forming strong intermolecular hydrogen bonding, resulting in the highest boiling point.

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Answer:

Two factors that can affect the stability of California's climate are ocean currents and land use changes. Ocean currents can stabilize the climate by regulating temperatures and weather patterns, while changes in land use, such as deforestation and urbanization, can destabilize the climate by altering the balance of greenhouse gases in the atmosphere and increasing the likelihood of extreme weather events like droughts and wildfires.

The group that is ortho- and para-directing, but also deactivating in electrophilic aromatic substitution reactions is the nitro group (f). The nitro group is ortho- and para-directing because it is electron-withdrawing, which creates a positive charge on the carbon atoms adjacent to the nitro group.

The positive charge makes those positions more attractive to electrophiles. However, the nitro group is also deactivating because it withdraws electrons from the ring through its oxygen atoms, which makes the ring less attractive to electrophiles overall.

This combination of directing and deactivating effects means that the nitro group favors substitution at the ortho- and para-positions, but it also slows down the reaction and requires more reactive electrophiles to achieve the substitution reaction.

In general, groups that are electron-withdrawing (like nitro) tend to be deactivated, while groups that are electron-donating (like hydroxy or alkoxy) tend to be activating and make the ring more attractive to electrophiles.

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The reaction will continue until the concentrations of all species reach the equilibrium concentrations that correspond to the given Kc value. The container volume does not affect the direction of the reaction, but it will determine the final equilibrium concentrations of the species.

Based on the given equilibrium constant (Kc=0.10) and initial concentrations of reactants and products, we can determine the reaction quotient (Qc) as follows: Qc = [NO]^2 / [N2][O2] Qc = (0.80 mol/L)^2 / (4.0 mol/L)(1.0 mol/L) Qc = 0.04

Since Qc is smaller than Kc, the reaction will proceed in the forward direction to reach equilibrium. This means that more NO will be produced and the concentrations of N2 and O2 will decrease.

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60/10^-3 is bigger than 20/10-6 because 60/10^-3 simplifies to 60000, which is greater than -4, the simplified value of 20/10-6.

The problem asks us to compare two expressions: 20/10 - 6 and 60/10^-3. To determine which expression is bigger, we need to simplify each expression using the order of operations, which is a set of rules that tells us the order in which we should perform mathematical operations.

To compare 20/10-6 and 60/10^-3, we need to convert both fractions to the same denominator. We can do this by multiplying the first fraction by 1000/1000 and the second fraction by 10^3/10^3.

20/10-6 becomes (20*1000)/(10*1000)-6, which simplifies to 2-6 = -4.

60/10^-3 becomes 60*10^3, which simplifies to 60000.

Since -4 is less than 60000, we can conclude that 60/10^-3 is bigger than 20/10-6.
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To find the acceleration of the electron, we can use the formula for centripetal acceleration, which is given by a = v^2/r, where v is the speed of the electron and r is the radius of the circle. The acceleration of the electron in this model is 9.00 x 10^22 m/s^2.

Plugging in the values given in the problem, we get:

a = (2.18×10^6 m/s)^2 / (5.28×10^-11 m)
a = 9.03×10^22 m/s^2

Therefore, the acceleration of the electron in this model is 9.03×10^22 m/s^2.

In the given model of the hydrogen atom, an electron orbits a proton in a circle of radius 5.28 x 10^-11 m and has a speed of 2.18 x 10^6 m/s. To find the acceleration of the electron, we can use the centripetal acceleration formula:

Centripetal acceleration (a) = (v^2) / r

where:
v = speed of the electron (2.18 x 10^6 m/s)
r = radius of the orbit (5.28 x 10^-11 m)

Now, let's calculate the acceleration:

a = (2.18 x 10^6 m/s)^2 / (5.28 x 10^-11 m)

a = 4.7524 x 10^12 m^2/s^2 / 5.28 x 10^-11 m

a = 9.00 x 10^22 m/s^2

So, the acceleration of the electron in this model is 9.00 x 10^22 m/s^2.

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