When the pressure that a gas exerts on a sealed container changes from 22.5 psi to ? psi, the temperature changes from 110 degrees celcius to 65.0 degrees celcius?

The factors that result in a stronger ionic bond are greater absolute charges and smaller ions. The similarity of ionic sizes can affect the bond's stability but doesn't directly make the bond stronger or weaker.

The following factors often affect an ionic bond's strength:

Greater absolute charges: Ionic bonds are more powerful when the positive and negative charges of the participating ions are greater. For instance, because the charges are higher in the former situation, the connection between a +2 ion (for instance, Ca²⁺) and a -2 ion (for instance, O₂) is stronger than between a +1 ion (for instance, Na⁺) and a -1 ion (for instance, Cl).

Ion bonds formed by smaller ions are frequently stronger. Ions can move closer to one another when they are smaller, which increases the electrostatic attraction between them.

Therefore, higher absolute charges and smaller ions produce an ionic bond that is stronger. Though it doesn't directly strengthen or weaken the binding, the similarity of the ionic sizes can have an impact on how stable the bond is.

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A stronger ionic bond is characterized by larger ionic charges and smaller ion sizes, resulting in greater attraction and higher lattice energy. For instance, a 2+ cation would form a stronger ionic bond with a chloride ion than a 1+ cation due to the greater charge.

The factors that will result in a stronger ionic bond overall include the magnitude of the charges and the size of the ions. A stronger ionic bond is formed when the ions involved have larger charges because larger charges result in a greater electrostatic force of attraction. Additionally, smaller ions form stronger bonds since they can get closer together, which increases the attraction between them. The lattice energy is a measure of the strength of ionic bonding.

Sodium chloride is an example of a substance with ionic bonds that result in high melting and boiling points due to the strong attractions. The strength of an ionic bond is directly proportional to the quantity of the charges and inversely proportional to the distance between the charged particles. For instance, a cation with a 2+ charge would form a stronger ionic bond with Cl− than a cation with a 1+ charge because of the greater charge magnitude.

Electrons are a  subatomic particle with a negative charge. They are also found present in atoms.

The number of unpaired electrons in a neon atom is zero.

A neon atom is part of the first twenty element and it is the tenth element in the series. Its chemical symbol is represented as Ne, its atomic number is 10 while the atomic mass is approximately 20.

It belongs to period 2 and found in the noble gas group. As the number of protons is the same as the electrons, therefore the number of electrons is 10.

In a neon atom, its electronic configuration is [He] 2S2 2p6. All electrons here are paired (in twos) with none unpaired. Therefore, the number of unpaired electrons in a neon atom is zero.

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Compared to sulphuric acid, carboxylic acids are much weaker, this is because of their overall characteristic with respect to pKa, they do not dissociate completely as to all be in their conjugate base form but will have equal amounts in both.

Sulfuric acid is a strong polyprotic acid, and has a pKa value that is even smaller than the carboxylic acid.

Oil of vitriol, also known as sulfuric acid is a mineral acid made up of the elements hydrogen, oxygen, and sulfur, and has the chemical formula H2SO4.

It is a viscous liquid that is miscible with water. It has no color or smell. Due to its strong affinity for water vapor, pure sulfuric acid does not naturally occur; it is hygroscopic and rapidly absorbs water vapor from the air.

Therefore, Compared to sulphuric acid, carboxylic acids are much weaker, this is because of their overall characteristic with respect to pKa, they do not dissociate completely as to all be in their conjugate base form but will have equal amounts in both.

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Paramagnetic can be detected by the unpaired electrons in the electron configuration. In this case, out of Sc³⁺, Br⁻, Mg²⁺, and Se, only Se (Selenium) is paramagnetic because it has unpaired electrons.

The substances in question are Sc³⁺ (Scandium ion), Br⁻ (Bromide ion), Mg²⁺ (Magnesium ion) and Se (Selenium). To determine if these species are paramagnetic, we need to look at their electronic configurations.

Sc³⁺ (Scandium ion) has an atomic number of 21. When it loses 3 electrons to form the cation Sc³⁺, it has the same electron configuration as Argon, with all shells filled, therefore it is diamagnetic, not paramagnetic.

Br⁻ (Bromide ion) is the ion formed when Bromine (atomic number 35) gains one electron. This results in a complete electron shell, and so bromide ion is diamagnetic, not paramagnetic.

The  Mg²⁺ (Magnesium ion) is formed when Magnesium (atomic number 12) loses 2 electrons. This results in a complete electron shell, making this species diamagnetic as well.

Lastly, Se (Selenium) with an atomic number of 34 has 4 unpaired electrons in its ground state and therefore is paramagnetic.

So, out of Sc³⁺, Br⁻, Mg²⁺, and Se, only Se (Selenium) is paramagnetic.

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The average translational kinetic energy of helium s equal to that of oxygen at [tex]\boxed{300\;{\text{K}}}[/tex] .

Further Explanation:

One of the states of matter is gas. In gases, the atoms and molecules have space between them and can easily move over each other hence gases are compressible. Gases neither have fixed shape nor volume. It occupies the shape and volume of the container. The examples of matter that are gases are nitrogen and carbon dioxide.

The kinetic theory is based on the following postulates:

1. Gas molecules have a large collection of individual particles with empty space between them and the volume of each particle is very small as compared to the volume of the whole gas.

2. The gas particles are in straight-line motion or random motion until they are not collided with the wall of the container or with each other.

3. The collision between the gas particles and the wall of the containers are an elastic collision that means molecules exchange energy but they don’t lose any energy during the collision. So the total kinetic energy is constant.

The formula to calculate the average translational kinetic energy of helium is as follows:

[tex]{{\text{E}}_{{\text{He}}}} = \frac{3}{2}{\text{k}}{{\text{T}}_{{\text{He}}}}[/tex]           …… (1)

Here,

[tex]{{\text{E}}_{{\text{He}}}}[/tex] is the average translational kinetic energy of helium gas.

k is the Boltzmann constant.

[tex]{{\text{T}}_{{\text{He}}}}[/tex]  is the absolute temperature of helium gas.

The formula to calculate the average translational kinetic energy of oxygen is as follows:

[tex]{{\text{E}}_{{{\text{O}}_{\text{2}}}}} = \frac{3}{2}{\text{k}}{{\text{T}}_{{{\text{O}}_{\text{2}}}}}[/tex]                                                                                                …… (2)

Here,

[tex]{{\text{E}}_{{{\text{O}}_{\text{2}}}}}[/tex] is average translational kinetic energy of oxygen gas.

k is the Boltzmann constant.

[tex]{{\text{T}}_{{{\text{O}}_{\text{2}}}}}[/tex]  is absolute temperature of oxygen gas.

Since both gases have same average translational energy. So left-hand side of equation (1) and (2) becomes equal, and therefore right-hand side of both equations can be compared as follows:

[tex]\frac{3}{2}{\text{k}}{{\text{T}}_{{{\text{O}}_2}}} = \frac{3}{2}{\text{k}}{{\text{T}}_{{\text{He}}}}[/tex]                                                                                                       …… (3)

Rearrange equation (3) to calculate  [tex]{{\text{T}}_{{{\text{O}}_{\text{2}}}}}[/tex]  

[tex]{{\text{T}}_{{{\text{O}}_2}}} = {{\text{T}}_{{\text{He}}}}[/tex]                                                        …… (4)

The value of [tex]{{\text{T}}_{{\text{He}}}}[/tex] is 300 K. So according to equation (4),  [tex]{{\text{T}}_{{{\text{O}}_{\text{2}}}}}[/tex] also becomes 300 K.

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Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ideal gas equation

Keywords: 300 K, helium, oxygen, average translational kinetic energy, k, Boltzmann constant, absolute temperature, gas, kinetic theory, 3/2 kT, same, equal.

Breaking solvent-solvent attractions and breaking solute-solute attractions : endothermic process

Forming solute-solvent attractions : exothermic process

In mixing the two solutions, it will require energy to break the attraction of each solution and create a new attraction that produces energy.

If both are equal then there will be no heat released or received so that the delta H solution is 0, which indicates that the solution is ideal

The ideal solution occurs if the attractive force between the molecules is the same as the attractive force of each solute and solvent

There are 2 kinds of deviations from Raoult's Law,

Occurs if the attractive strength between each mixture forming agent is stronger than the attractive in the mixture

(X-X, Y-Y> X-Y)

This deviation produces a positive enthalpy of solution (ΔH +) which is endothermic

Occurs if the attractive force in the mixture is stronger than the attractive force of each substance

(X-Y> X-X, Y-Y)

This deviation produces an enthalpy of a negative value solution (ΔH -) which is exothermic

So that breaking solvent attractions and breaking attraction solutes require energy so it is called an endothermic process

While forming solute-attraction attractions will release heat so-called exothermic process

Raoult's law

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Deviation from Raoult's Law

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When heat is added to a substance  

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Final answer:

Vinegar contains acetic acid, an organic compound classified as a carboxylic acid, due to the presence of a carboxyl group with both a carbonyl and a hydroxyl group attached to the same carbon atom.

Explanation:

Vinegar is an example of an organic compound called a carboxylic acid. Its functional group is known as the carboxyl group, which features a carbonyl group (a carbon atom double-bonded to an oxygen atom) and a hydroxyl group (an oxygen atom single-bonded to a hydrogen atom) attached to the same carbon. This unique structure with the general formula RCOOH is characteristic of carboxylic acids such as acetic acid (CH₃COOH), which gives vinegar its sour taste and pungent smell.

The presence of the carboxylic acid functional group distinguishes it from other compounds like amines, which contain nitrogen; aldehydes, which have the carbonyl group bonded to at least one hydrogen atom; and esters, which have the carbonyl group bonded to an oxygen atom that is in turn connected to another carbon group.

Acetic acid is a well-known carboxylic acid found in vinegar and has been used since ancient times for various purposes, from a condiment and a preservative to even an antibiotic and a detergent.

Answer:

Kinetic energy of a system .

Explanation:

Hello,

The temperature is a measure of the average kinetic energy of the atoms or molecules in the system as long as it accounts for the movement of the particles composing the system, thus, the higher the temperature, the higher the kinetic energy as the atoms or molecules could move faster and vigorously.

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The nuclide produced when uranium-238 decays by alpha emission is thorium-234. This process involves the emission of an alpha particle, which causes uranium-238 to lose 2 protons and 2 neutrons, resulting in thorium-234.

The nuclide produced when uranium-238 decays by alpha emission is thorium-234. This decay process involves the release of an alpha particle from uranium-238 nucleus. An alpha particle is equivalent to a helium nucleus - it contains 2 protons and 2 neutrons. Therefore, when uranium-238 (which has 92 protons and 146 neutrons) emits an alpha particle, it loses 2 protons and 2 neutrons, transforming into a new element with 90 protons and 144 neutrons, which is thorium-234 (234 90Th).

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Not filtering a saturated solution before titrating will likely cause the calculated Ksp to be a) too high

When a student does not filter their saturated solution before titrating, the calculated Ksp (solubility product constant) will likely be affected.

Specifically, the Ksp will probably be too high.

This is because the undissolved solid present in the unfiltered solution will falsely contribute to the ionic concentration being measured during the titration, leading to an overestimation of the dissolved ions and thus a higher calculated Ksp.

As a result, to ensure accurate determination of the Ksp, it is essential to filter the solution to remove any undissolved solute before conducting the titration.

Complete question is - A student does not filter his/her saturated solution before titrating. will the calculated ksp probably be (a) too high, (b) too low, or (c) unaffected? why?

Answer:

The molecules get closer together and move more slowly.

Explanation:

from a gas to a liquid, the atoms or molecules of the substance do not change. Instead, the motion of the atoms or molecules in the substance determines its state of matter.

gas condenses to form a liquid, the molecules get closer together and move more slowly. If the molecules continue to slow down until they move so slowly that they can only vibrate against one another, then the substance becomes a solid.

The hybrid orbitals used by sulfur in SCl2 are sp3. These are formed due to bonding with two chlorine atoms, and the presence of a lone pair.

The hybrid orbitals used by sulfur in SCl2 are sp3 hybrid orbitals. In SCl2, sulfur uses three of its valence electrons to form sigma bonds with two chlorine atoms and the remaining two are used to form a lone pair. Hence, we have total 4, i.e., the hybridization of S in SCl2 is sp3.

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Answer:1.80 x 10^24

Explanation:

When solid aluminum acetate (Aluminum Ethanoate) is put into water, it dissociates into its constituent ions, resulting in the following reaction:

Aluminum Acetate (solid) → Aluminum ions [tex]\rm (Al^3^+)[/tex] + Acetate ions [tex]\rm (CH_3COO^-)[/tex]

When solid aluminum acetate (also known as aluminum ethanoloate) is added to water, aluminum ions [tex]\rm (Al^3^+)[/tex] and acetate ions[tex]\rm (CH_3COO^-)[/tex]are produced. The attraction between the ions and the polar water molecules causes this separation. Hydration is the process through which water molecules surround these ions.

Due to the presence of freely moving ions that promote the flow of electric current, the resulting solution develops into a powerful electrolyte that can conduct electricity. Aluminum acetate dissociates and ionizes in water, which contributes to its function as a powerful electrolyte in aqueous solution and facilitates a variety of chemical and electrochemical reactions.

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