write the electron configurations for the following ions using spectroscopic ( spdf) and orbital box notation. (a) k full electron configuration

The energy of a photon of each radiation is 1.9878 × 10²⁰, 1.9878 × 10¹⁸, and  1.9878 × 10¹⁶ respectively.

Wavelength is the distance among the same points (adjacent crests) within the adjoining cycles of a waveform signal propagated in space or along a wire.

Calculation:-

infrared = 1.0 x 10⁻⁶m,

C = λf

f = C/λ

   = 3 × 10⁸ / 1.0 x 10⁻⁶m

    = 3 × 10¹⁴

energy = hf

            = 6.626 × 10⁻³⁴ × 3 × 10¹⁴

            = 19.878 × 10²⁰

            = 1.9878 × 10²⁰

ultraviolet = 1.0 x 10⁻⁸ m,

C = λf

f = C/λ

   = 3 × 10⁸ / 1.0 x 10⁻⁸ m,

    = 3 × 10¹⁶

energy = hf

            = 6.626 × 10⁻³⁴ × 3 × 10¹⁶

            = 19.878 × 10¹⁸

            = 1.9878 × 10¹⁸

x-ray = 1.0 x 10⁻¹⁰ m.

C = λf

f = C/λ

   = 3 × 10⁸ /  1.0 x 10⁻¹⁰ m.

    = 3 × 10¹⁸

energy = hf

            = 6.626 × 10⁻³⁴ × 3 × 10¹⁸

            = 19.878 × 10¹⁶

            = 1.9878 × 10¹⁶

The wavelength is the distance between two wave crests, and it will likely be the same for troughs. The frequency is the number of vibrations that bypass over a given spot in a single 2d, and it is measured in cycles consistent with 2d (Hz) (Hertz).

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The main components of fossil fuels are carbon and hydrogen, with minor amounts of sulfur, nitrogen, oxygen, and mineral materials. Burning mineral stuff produces ash.

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Sodium propeoxide compounds reacting with 1-iodobutane in an SN2 reaction will form 1 ethoxy propone..

A bond has been broken as well as another was created simultaneously during the nucleophilic substitution process known as the SN2 reaction.

One kind of molecule will react with another kind of molecule then it will form another kind of compound, such process is named as chemical reaction.

When 1-iodobutane is treated with sodium prope oxide then it will form 1 ethoxy propone.

The reaction can be expressed as:

The question is incomplete, the complete question is:

Draw the structure of the nucleophile required to form each of the following compounds after reacting with 1-iodobutane in an SN2 reaction:

(i) 1-ethoxy propane

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The relationship between dipole moment and the distance between the charges is the dipole moment is directly proportional to the distance between the charges.

The dipole moment is equal to the product of the magnitude of the charges and the distance between the charges. the expression for the dipole moment is given as follows:

dipole moment = charge × distance of charges

     u                   =     Q      ×     r

so, the the distance between the charges is directly proportional to the dipole moment . if the distance between the charges increases the dipole moment is also increases. if the distance between the charges decreases the dipole moment also decreases.

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Carbon dioxide = 2.93g and water = 1.20g. Use this information to find the molecular formula is C6H12O6.

Mass of Carbon dioxide = 2.93 g

Molar mass of Carbon dioxide= 44.01 g/mol

Moles of CO2 = mass/molar mass

= (2.93 g) /(44.01 g/mol)

= 0.066 mol

Therefore, moles of C = 0.066 mol

Mass of C = (0.066 mol) (12 g/mol)

= 0.792 g

Similarly,

Moles of H2O = mass/molar mass

= (1.20 g) /(18 g/mol)

= 0.066 mol

Moles of H = 2 x 0.066 = 0.132 mol

So, mass of H = (0.132 mol) (1 g/mol)

= 0.132 g

Mass of compound = mass of C + mass of H + mass of O

Therefore, mass of O = 2 - (0.792 + 0.132)

= 1.076 g

Moles of O = mass/molar mass

= (1.076 mol)/(16 g/mol)

= 0.067 mol

So, moles of C = 0.066 mol

Moles of H = 0.132 mol

Moles of O = 0.067 mol

Divide by lowest mole

C : (0.066) /(0.066) = 1

H : (0.132)/(0.066) = 2

O : (0.067) /(0.066) = 1

Empirical formula : CH2O

Molar mass of empirical formula = 12 + (2 x 1) + (16)

= 30 g/mol

n = (molar mass of compound) /(molar mass of empirical formula)

= 180 / 30

= 6

Therefore, molecular formula is : (CH2O)6

= C6H12O6

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The atmospheric partial pressure of oxygen  refers to the amount of oxygen in the atmosphere, which is mainly influenced by the amount of oxygen in the air. The alveolar partial pressure of oxygen (PₐO₂) refers to the amount of oxygen in the air that has diffused into the alveoli in the lungs and is the amount of oxygen available for respiration.

This difference between these two exists because oxygen molecules must travel through the airways and across the alveolar-capillary membrane before they can reach the alveoli in the lungs.

The airways contain airway resistance, which limits the amount of oxygen that can diffuse into the alveoli from the atmosphere. Additionally, there is a gradient of oxygen between the alveoli and the surrounding capillaries, which affects the amount of oxygen that can pass across the alveolar-capillary membrane.

As a result, the amount of oxygen in the alveoli is always lower than the amount of oxygen in the atmosphere. That is why both differ in their own ways.

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Four similarities between electrophoresis and chromatography are:

1. Both the techniques are based on separation of molecules.

2. Both the techniques separate molecules based on the physical or chemical properties of the components to be separated.

3. A solvent is required to run the sample in the both techniques.

4. The principles of size exclusion chromatography and electrophoresis are nearly identical where the molecules are separated based on their geometry and size and move through pores.

Four dissimilarities between electrophoresis and chromatography are:

1. In case of electrophoresis, the separation is based on the different rates of migration in an electric field. In case of chromatography, the separation is based on the chemical species' partition coefficient.

2. In case of electrophoresis, the electric field that exists between charged particles in one medium and another causes the sample's particles to migrate. In case of chromatography, the partitioning of components between the mobile phase and stationary phase causes the sample's particles to migrate.

3. Electrophoresis can be carried out in liquid and solid components. Chromatography can be carried out in liquid, solid and gaseous components.

4. The electrophoresis technique is typically applied to samples that are microscopic in nature. Chromatography is employed when a big volume of the material needs to be evaluated.

It is a laboratory procedure which is used to separate DNA, RNA, or protein molecules according to their size and electrical charge. The molecules under the influence of electric current through a gel or other matrix.

It is an analytical process of separating the mixture constituents. The mixture is dissolved in mobile phase to start the process, which then gets transported through the stationary phase.

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Final chloride ion concentration is 1.03 mol / Cl- L when 34. g of zncl2 have been dissolved in 696. ml of water.

First we need to convert  zncl2 to moles:

34 g zncl2 x 1 mole zncl2/ 136.3 g = 0.24 mol zncl2

Given the molecular formula, we have three chlorine atoms for every mole of zncl2

0.24 mol zncl2 x 3 mole Cl-/ 1 mole  zncl2 =  0.72 mol Cl-

Now we will divide this by the volume of the solution as liters

696 ml x 1 L/ 1000 mL =  0.696 L

Concentration =  0.72 mol Cl- / 0.696 L = 1.03 mol / Cl- L

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Characteristics of ionic compounds are

1. They develop crystals.

2. Both their melting and boiling points are very high.

3. They are fragile and hard.

4. Compared to molecular molecules, they have higher fusion and vapourization enthalpies. When dissolved in water, they act as an electrical conductor.

5. Ionic solids are excellent insulators because they do not conduct electricity.

An ionic compound in chemistry is a chemical complex made up of ions kept together by electrostatic forces known as ionic bonding. Although the molecule is mostly neutral, it contains positively charged ions known as cations and negatively charged ions known as anions.

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Acidic and Basic substances are frequently found in chemistry and daily life. Acidic and Basic are essential components of our daily lives. They perform a useful function both inside and outside of our bodies.

Typically, sour tastes help to identify acidic chemicals. A fundamental definition of an acid is a molecule that can donate an H+ ion and maintain its energetic favorability even after losing an H+ ion.

Lewis acids, which include all Lowery Bronstead acids, also include many additional reagents like boron trifluoride, aluminum chloride, etc.

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The molecule cellulose found in paper is almost identical to the carbohydrate molecule found in mashed potatoes.

In the field of science, cellulose can be described as a naturally occurring compound that is found in plants as well as algae. Cellulose is a starchy, carbohydrate molecule hence it is found in starchy foods such as potatoes.

Cellulose is a structure that maintains the stability and integrity inside the plant cell. This same molecule is added to a paper in order to maintain the rigidity and toughness in paper. Hence, you are most likely to find cellulose in mashed potatoes as well as in paper.

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The offered statement states that when a brass plate is submerged in a copper sulfate aqueous solution, Cu2+(aq)+2e-Cu (s).

Especially when used for a brief time, it may be safe when consumed in greater sums. However, eating amounts greater than 40 mg per day may reduce the amount of copper that the body absorbs. Exceptionally high zinc doses are actually very dangerous and may result in nausea, vomiting, and other unpleasant side effects.

Although used alone or in conjunction with vitamin C, zinc is frequently included within multivitamins. Although it can upset the stomach, its digestion is most effective when done so on an empty stomach.

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The current that leaks through protective ground conductor and goes to ground is known as leakage current. When a grounding link is not present

Current can simply flow through a conductor. Insulators prevent the flow of current through them. Conductors have an electric charge on their surface. Powerful cha

The components or elements that permit electricity can flow through them are known as conductors. Conductors also permit the passage of heat via them. Animals, the Earth, metals, and the human body are all examples of conductors. A powerful conductor, the human body.

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Polar molecules are- CH3F, NH3, TeF4, XeF4 and Non polar molecules- GaH3 and CI4.

The smallest particle of a substance has all the physical and chemical homes of that substance are called molecules. If a molecule comprises a couple of atoms, the atoms may be the same (an oxygen molecule has oxygen atoms) or unique (a water molecule has two hydrogen atoms and one oxygen atom).

Molecules are of 3 sorts: The molecule of an atom, the Molecule of an element, and the Molecule of a compound.

While atoms combine by using forming covalent bonds, the ensuing collection of atoms is known as a molecule. we are able to consequently say that a molecule is the best unit of a covalent compound.

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The atmosphere Moves to alternative technologies that use less or less gas.

We can't stop global warming overnight but we can slow and limit global warming by reducing human emissions of heat-trapping gases and soot. Emissions can be reduced by switching to alternative technologies that use less or no gas.

Using public transport carpooling biking and walking reduces the number of cars on the road and greenhouse gases in the atmosphere. Carbon dioxide is removed from the atmosphere by passing the air through large air filters and is stored deep underground. This technology already exists and is being used on a small scale.

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Carboxylic group (-COOH) converts into ester (−COCH3) during the reaction of salicylic acid with methanol so, reaction is known as esterification.

The product methyl 2− hydroxyl benzoate is known as the oil of wintergreen. Oil of wintergreen is naturally produced organic ester.

1) Methyl salicylate (oil of wintergreen)

Salicylic acid and methanol undergo esterification reaction in presence of acid catalyst to give methyl salicylate and water.

Salicylic acid is odorless and white Solid Methanol is colourless volatile liquid having pungent odour or smell. Methyl salicylate is colourless liquid having sweet and fruity smell

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Boron (B) is the element whose IE matches with our data.

Electronic Configuration of boron : 1s22s22p1

The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry.

Ionization energy, also known as ionisation energy, is the minimal amount of energy needed to liberate the most loosely bound electron from an isolated gaseous atom, positive ion, or molecule in physics and chemistry.

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30ml

We know that

Molarity = n /volume  (solution)

M1 = n / V1           -----------------------1

M2 = n / V2          ------------------------2

from 1 and 2

M1/ M2 = V2/ V1

3 /15 = V2 / 150

V2 = (3 * 150) / 15

V2 = 30 ML

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BH³. A boron-hydrogen compound's empirical formula is BH3. It has a 27.7 g/mol molar mass.

In the earth's subsurface, there is just free hydrogen. The majority of hydrogen is found in stars and gas giant planets. Hydrogen dominates the composition of the Sun. The pressure is so intense in the inside of stars that hydrogen atoms are changed into helium atoms.

However, they are unsure if its advantages outweigh those of drinking regular water or being hydrated in general. Hyponatremia, which can be fatal, can result from excessive water intake.

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The 3 examples of metaphors: 1. life is a dual carriageway. 2. Her eyes were diamonds.3. he is a shining big name.

A metaphor is discernment of speech that, for rhetorical effect, directly refers to 1 thing by bringing up another. it may provide clarity or become aware of hidden similarities between two one-of-a-kind thoughts. A metaphor is a discernment of speech that describes an item or movement in a manner that isn't always actually genuine but helps explain a concept or make an assessment.

See if the sentence makes use of a word inclusive of “as” or “like” as a preposition. that is, it's far from evaluating things explicitly. If it compares matters without the usage of prepositions consisting of “like” or “as” it is a metaphor.

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After checking the records it is found that 52.500 is in both the records.

Inventory value

The total dollar value of the inventory you have left to sell at the end of an accounting period is known as the inventory value. We'll often see inventory value listed on financial statements, including your balance sheet, at the end of an accounting year. Inventory values is being calculated by multiplying the number of items on hand with the unit price of the items.

Inventory                 52.500 -Debit-  

Retained earnings  52.500  -Credit-

(to record change the accounting change)

(195,000 - 177,500) × 2 years = 52.500

Hence, 52.500 is the FIFO - LIFO of year 1.

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The first solution contains 0.300 mol of naoh in 1.75 l of solution.Second solution contains 16.5 g of nacl in 783 ml of solution.The molarity of the two solutions are 0.1714 and 0.3601 respectively.

Molarity=[tex]\frac{moles solute}{liter of solution}[/tex]

Molarity of naoh=[tex]\frac{0.300}{1.75}[/tex]=0.1714 m naoh

Molarity of nacl:-

Calculate molar mass of NaCl

Na=23.00amu

Cl=35.45amu

Molar Mass=58.45amu

Moles of nacl=[tex]\frac{16.5g nacl}{58.45g nacl}[/tex]=0.282 mol nacl

molarityof nacl=[tex]\frac{0.282mol nacl}{0.783l}[/tex] =0.3601 m nacl

Molarity is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of a solution.

Molar mass of a substance is the mass in grams of one mole of the compound. In a substance, the amount of entities present e.g. atoms, molecules, ions, is defined as a mole. A mole of any substance is 6.022×[tex]10^{23}[/tex] molecules.

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At the equivalence point, an equal number of moles of acid and base have reacted, resulting in a neutralization. TRUE

A neutralization reaction is when an acid and a base react to form water and salt and includes the combination of H+ ions and OH- ions to generate water. The neutralization of a robust acid and strong base has a pH equal to 7.

Neutralization or neutralization is a chemical response wherein an acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no extra hydrogen or hydroxide ions present inside the solution.

Neutralization is the response of an acid with a base that affects the pH transferring towards 7. it's miles a useful manner that takes place in regular lifestyles which include the treatment of acid indigestion and the treating of acidic soil by using lime. Neutralization additionally actions the pH of an alkali down in the direction of seven.

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Tax returns submitted manually have such a 20% chance of being inaccurate, whereas those submitted electronically have such a 0.05% probability.

The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission." Physical documents are represented by digital records (even if they originated in digital format)

The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission."

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Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions.

Ions, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions. By combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the formerly bonded atoms. Ions are formed when the number of protons in an atom does not equal the number of electrons.

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The mature human albumin has a molecular weight of 66,348 Da and 585 amino acids. HSA is a globular, heart-shaped protein with a recurrent arrangement of six helical subdomains.

Examples of load-bearing structures include buildings, cars, skeletons, anthills, beaver dams, bridges, and salt domes. The infrastructure of a human society is made up of buildings and other things that are the outcomes of construction.

A structure is something made up of numerous pieces that are put together. A sentence, your body, an outhouse, or a skyscraper all qualify as structures. Structure is derived from the Latin word structura, which meaning "a fitting together, building."

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Another approach to think about molecule orbitals is via the lens of molecular orbital theory. Unlike the valence bond's lone pair of electrons and localized bond.

The following are the postulates of the molecular orbital theory: Similar to how an atom's electrons are found in different atomic orbitals, a molecule's electrons are found in a variety of molecular orbitals. Atomic orbitals with appropriate symmetry and equivalent energy combine to generate molecular orbitals.

According to MO theory, molecular bonds are just nuclei trading electrons. contrary to the VB theory, which views the electrons as localized hybrid electron density orbitals. According to MO theory, the electrons are delocalized.

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The correct answer is 2.51 by 2.53.

The formula for calculating the volume of the square box is expressed as:

V = x²h

Given that the volume of the box is 16, on substituting the value we will have

h = v / x²

h = 16 / x²

The surface area of the box is expressed as:

S = 2(x² + xh + xh)

S = 2(x² +2hx)

S = 2[x² + 2(16/x²)x]

S = 2[x² + (32/x)]

S = 2x² + (64/x)

To get the surface area is as small as possible, then dS/dx = 0

dS/dx = 4x - (64/x²)

0 = 4x - (64/x²)

4x = (64/x²)

4x³ = 64

x³ = 64/4 = 16

x = ∛16

x = 2.51

Get the height of the box. Recall that:

h = 16 / x²

  = 16 / (2.51)²

  = 16 / 6.3

h = 2.53 m

Hence the dimension for which the volume is 16 and the surface area is as small as possible are 2.51 by 2.53.

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In harmonic motion if the mass of the attached body is increased by a factor of four . The truth about the period is that the period will remain unchanged.

The physical explanation behind the relationship between mass and period is that the period T does not depend on the mass of the object, but on the length of the rope or cord to which the mass of the object is attached.

When the mass of the attached body is quadrupled. What applies to the period is that the period does not change.

In other words, if you put four pendulums of the same length but different masses on different strings, the pendulums will produce the same period.

From the simple pendulum formula

period T = 2π

Therefore, we can conclude from the above equation that the period T depends on the length of the chord rather than the mass. So suppose the mass of the attached body increases by a factor of 4. What applies to the period is that the period does not change.

your question is incomplete, but most probably the full question was

The mass is increased by a factor of four. What is true about the period? Choose the best answer.

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When a certain quantity of CO gas reacts, the value for the environment is 197.77 J/K.

Whether a reaction will occur spontaneously is influenced by its standard entropy. The overall entropy of the system and its surroundings always rises as a result of a spontaneous reaction, according to the second rule of thermodynamics: Not all gases have the same molar entropy.

To calculate the reaction's enthalpy, S°, add up the absolute entropies of the reactants and products and subtract them from one another. Then, multiply each result by the relevant stoichiometric factors.

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