What is iupac name of this compound

1 mole of any substance contains 6.023 × 10²³ particles. Therefore, 48.184 particles represents 8.0 moles.

The term mole is defined as the amount of substance in a system which include as many elementary entities as there are atoms present in it. It is denoted by the symbol “mol”. The word mole is coming from the Latin word moles, which means “a mass”.

The mole is also defined as it contain exactly 6.023 × 10²³ elementary entities present in it. 1 mole is exactly equal to the 6.023 × 10²³ elementary entities.

1 mole =  6.023 × 10²³

8 mole = 8 × 6.023 × 10²³

= 48.184 particles

Thus, 1 mole of any substance contains 6.023 × 10²³ particles. Therefore, 48.184 particles represents 8.0 moles.

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The reason behind the acceptance of Darwin's theory is D It is supported by practical evidence and examples.

The theory of evolution proposed by Charles Darwin is a well sustained model that explains how animals change in order to adapt to an ever-changing enviroment, which is supported by scientific evidence and observations.

Therefore, with this data, we can see that the theory of evolution proposed by Charles Darwin is well sustained by evidence obtained from experimentation and also observations of the natural world.

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Answer:

hi, I haven't done this in a while, but I think this is it!

Explanation:

20

8 Iron Atoms

12 Oxygen Atoms

The order of Sy2 reactivity for the sets of compounds you provided would be:

Compound B (H2C=CHCH2CI)

Compound C (CI)

Compound A (CI)

This is because Compound B has the greatest electron-donating ability due to the presence of the alkyl group attached to the carbon bearing the halogen, making it the most nucleophilic and therefore the most reactive in an Sy2 reaction. Compound C is less reactive than B because it lacks the electron-donating alkyl group, and Compound A is the least reactive due to the lack of electron-donating groups.The term "Sy2 reactivity" refers to the reactivity of a compound in a nucleophilic substitution reaction where the leaving group is displaced by a nucleophile. The abbreviation "Sy" stands for "substitution" and the subscript "2" indicates that the reaction is bimolecular, meaning that the rate of the reaction is dependent on the concentrations of both the substrate and the nucleophile.

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Decomposition of one mole of magnesium carbonate (84 g) produces one mole of magnesium oxide (40 g). Thus, 1280 g of magnesium carbonate will produce 609 g of MgO.

Magnesium carbonate is an ionic compound formed by donation of two electrons from magnesium metal to the carbonate group.

The decomposition reaction of magnesium carbonate is written below:

[tex]\rm MgCO_{3} \rightarrow MgO + CO_{2}[/tex]

As per this reaction, one mole of magnesium carbonate produces one mole of MgO.

molar mass of MgCO₃ = 84 g/mol

molar mass of MgO = 40 g/mol

84 g of  MgCO₃  gives 40 g of MgO. Then the mass of MgO produced by 1280 g of MgCO₃  is:

mass of MgO = (1280 × 40)/84 = 609 g.

Therefore, the mass of MgO produced is 609 g.

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The empirical formula of this compound is Ca3(PO4)2.

What is an Empirical formula?

An empirical formula is a type of chemical formula that shows the simplest ratio of atoms in a molecule, rather than the total number of atoms. It is the simplest possible chemical formula that shows the relative numbers of each type of atom in a molecule.

The molecular formula is Ca3(PO4)2•H2O, which indicates that the compound is composed of three calcium atoms, two phosphate atoms, and two water molecules. The molar mass of this compound is 1004 g/mol, which is two times the molar mass of the empirical formula (502 g/mol). Therefore, the molecular formula of this compound is Ca3(PO4)2•H2O.

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0.0450 moles of calcium chloride are contained in this sample

A mole of every substance weighs the same as its molecular mass and contains the same number of particles, according to Avogadro's law.

Utilizing the equation, we can determine the moles.

Number of moles=  Given Mass/ Molar Mass

Number of Moles = [tex]5.00 mg / 110.98 g/mol = 0.0450 moles[/tex]

Thus there are 0.0450 moles of [tex]Cacl2[/tex]

The mole is the volume of a substance that contains exactly as many molecules, atoms, radicals, ions, or electrons as there are in 12 grams of 12C.

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The total pressure in the flask is 1.320 times the total pressure.

Pressure is an important concept in chemistry, as it affects the physical behavior of gases and solids, and the rates at which reactions occur. Pressure is a measure of the force applied to an area, typically expressed in units of atmospheres (atm), or kilopascals (kPa).

Methane :

Mole fraction of methane = (231 mL / 2.00 L) = 0.1155

Partial pressure of methane = 0.1155 * Ptotal

Chlorine:

Mole fraction of chlorine = (907 mL / 2.00 L) = 0.4535

Partial pressure of chlorine = 0.4535 * Ptotal

Products:

Mole fraction of products = (75.9% com) = 0.759

Partial pressure of products = 0.759 * Ptotal

Total pressure = 0.1155*Ptotal + 0.4535*Ptotal + 0.759*Ptotal = 1.320*Ptotal

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Lone electron pairs are absent from the Be atom. A negative formal charge would be placed on the Be atom as a result of the double bonds existing between it and the Cl atom.

When compared to an isolated neutral atom, the number of electrons that are attached to an atom in a molecule determines its formal charge.

The octet rule is broken by B e C l 2, as the boron should be in a valence state that enables it to attach to three chlorines. However, in this molecule, the boron is joined by six electrons.

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The space left by the free electron in an atom after it has lost one electron is known as a hole.

The term "free electron" refers to an electron that has broken loose from its "parent" atom and is now free to move about the material at random. A vacancy, also known as a hole, is created in the atom when a bonded electron in a lattice atom breaks free. The number of electrons in an atom's valence shell, or n shell in this example, has a significant impact on the electrical properties of the element that the atom represents. The least force of attraction is felt by the electrons in the valence shell since they are the furthest from their nucleus.

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As a result of photosynthesis the level of CO₂ decrease and the the level of o2 increase in the environment.

Photosynthesis is a chemical process that occurs in algae, plants and some types of bacteria, when they are exposed to the sunlight. During photosynthesis, water and carbon dioxide will combine to form carbohydrates and gives off oxygen.

During photosynthesis, plants take carbon dioxide from the air. Within the plant cell carbon dioxide is reduced, meaning it gains electrons. This transforms the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.

Photosynthesis increases the content of the non-structural carbohydrates in the leaves which can lead to grater starch reserves and increased auxin biosynthesis.

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Orbitals that are described by each of the combinations quantum numbers ; n = 3, ℓ =2 orbitals n = 4, ℓ = 2 is 5. ml=2 here is referring to last(5th) orbital space 4d.

In atomic theory and quantum mechanics, atomic orbital is a function describing the location and wave-like behavior of electron in an atom.

Quantum numbers  (n, l, ml, ms )

n=3, refers to 3rd energy level      

3rd energy level has 3 possible values of l  and d has 5 different orientations.

s=0   p=1    d=2

--> -2,-1,0,1,2

When; n=3 l=2, then number of orbitals is 5.

n=4 refers to 4th energy level ;        

4th level has 4 possible l values;      

s=0 p=1 d=2 f=3        

When, n=4   l=2 and  ml=2  

The number of orbitals is 5 and  ml=2 is referring to last(5th) orbital space 4d.

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A certain solution contains 4.3 grams of salt per liter. the  salt is there in 11 liters of the solution is 47.3 grams.

The solution contains = 4.3 grams salt per liters

in one liters the solution contains = 4.3 grams of the salt.

the salt in the 11 liters = ?

so, in one liter in contains = 4.3 grams

in 11 liters it will contains = 4.3 × 11

                                         = 47.3 g

the round off answer to the solution is 47.3 g.

Thus the amount of the salt in the 11 Liters of the solution is the 47.3 g.

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The composition of each compound as the mass percent of its elements is as follows:

Concentration is expressed as mass percent. Additionally, the ingredients in a particular mixture are described. Solution composition can be understood in terms of mass percent. It indicates the mass of solute present in a solution of a given mass. The amount of solute is expressed in mass or moles.

Mass Percent = (Component Mass ÷ Total Mass) x 100% or

(mass of solute ÷ mass of solution) x 100%

a. Sucrose (C₁₂H₂₂O₁₁) with molecular mass of 342.296 u composed of:

Carbon: (12 x 12.01) / 342.296 = 42.18%

Hydrogen: (22 x 1.01) / 342.296 = 6.44%

Oxygen: (11 x 16) / 342.296 = 51.38%

b. Aluminum sulfate (Al₂(SO₄)₃) with molecular mass of 342.14 u is composed of:

Aluminum: (2 x 26.98) / 342.14 = 3.99%

Sulfur: (3 x 32.06) / 342.14 = 4.57%

Oxygen: (18 x 16) / 342.14 = 87.44%

c. Magnetite (Fe₃O₄) with molecular mass of 231.534 u is composed of:

Iron: (3 x 55.85) / 231.534 = 71.83%

Oxygen: (4 x 16) / 231.534 = 28.17%

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Thermodynamic data is data that relates to the physical properties of a system related to temperature, pressure, and energy.

What is  Thermodynamic data?

Thermodynamic data is data that describes the physical properties of a material system in terms of temperature, pressure, and other thermodynamic variables. It is used to predict the behavior of materials in different conditions and to analyze processes such as heat transfer or chemical reactions. It is also used to design and optimize energy systems, such as engines and power plants.

The standard change in entropy when one mole of sodium nitrate is dissolved in water is:

ΔS° = S° (products) - S° (reactants)

ΔS° = (60.25 + 146.4) - 116.3 = 90.3 J/K•mol

The solubility of sodium nitrate will increase if the temperature of the system is increased.

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108°C is the final temperature of the water after absorption of 1680 Joules of heat energy.

Temperature is a physical quantity used to measure the average kinetic energy of molecules in matter. This is measured with a thermometer or other device that measures the average kinetic energy of the molecules within the substance. The terms Celsius (°C), Fahrenheit (°F), or Kelvin are commonly used to describe temperature (K). Temperature can affect the physical state of matter.

By rearranging the equation gives:

ΔT = q/mc

Plugging in the given values,

ΔT = 1680/ (80.0 g × 4.184 J/g·C)

= 98°C.

Since the initial temperature was 10°C, the final temperature is:

ΔT = T₂ - T₁

98°C = T₂ - 10

T₂ = 108°C

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Elements of group 18 belongs to the family of noble gases with a general electronic configuration ns²np⁶,  where the valence shell is completely filled.

The elements of group 18 are considered to be noble because they have a completely filled valence shell due to which they donot have the tendency to gain, lose or share their valence electrons with other atoms. Thus, they are highly unreactive.

The elements belonging to noble gas family are:  Helium (He), Neon (Ne), Argon(Ar), Krypton(Kr), Xenon(Xe), Radon(Rn).

under conditions of standard pressure and temperature, these elements exists as gases with very low chemical reactivity so they are known as inert gases.

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Density is an intensive property as it does not depend on the quantity of the substances Whereas mass and volume are extensive property. Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

Density tells about the compactness of the substances, how much dense is the substances in other words. Object that is more denser than water they just sink in the water.

Mathematically,

Density of rock = Mass of the rock ÷volume marked on the graduated cylinder

volume of rock= 6.7 mL

mass of rock= 12.34 grams

Substituting all the values in above formula, we get

Density of rock=  12.34 grams÷6.7 mL

                           =1.841g/ml

Therefore, the density of a rock with a volume of 6.7 mL and a mass of 12.34 grams is 1.841g/ml.

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A gas mixture containing oxygen, nitrogen, and He has a total pressure of 189.9 kPa. If PO2 = 104.6 kPa and PN2 = 13.0 kPa, PHe is 72.3 kPa.

Static pressure and velocity pressure are added to create total pressure. There is static pressure in a fluid that is not flowing. The pressure required to accelerate air from a zero velocity to a specific velocity that is proportional to the kinetic energy of the air stream is known as velocity pressure.

Consider the friction that exists between a fluid and the interior surface of a pipe. The fluid's density and velocity are used to compute the dynamic pressure: the total pressure in a mixture of ideal gases is the total of the partial pressures of the individual gases.

Total pressure = PO2  + PN2 + PHe

189.9 kPa = 104.6 kPa + 13.0 kPa + PHe

PHe = 72.3 kPa

Thus, A gas mixture containing oxygen, nitrogen, and He has a total pressure of 189.9 kPa. If PO2 = 104.6 kPa and PN2 = 13.0 kPa,PHe is  72.3 kPa.

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In the given question,It will take Caroline 1.2 hours  to travel 45 miles if she is traveling 37 mph (miles per hour).

As we know the velocity formula:

v = d/t

Where

V is velocity, d is distance and t is time.

as given in the question

distance = 45 miles

velocity = 37 mph

To find time t,

put the values in the formula:

t = d/v

t = 45/37

t = 1.2 hours

It will take Caroline 1.2 hours  to travel 45 miles if she is traveling 37 mph (miles per hour).

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Because of its simplicity, comparatively low cost, great sensitivity, and rapid separation, TLC is an extensively used analytical method.

Using a thin stationary phase supported by an inert backing, thin layer chromatography (TLC) is a chromatographic technique used to separate the components of a mixture. It can be carried out on an analytical scale to track the development of a reaction or on a preparative scale to purify minute quantities of a chemical. Similar to all chromatography, TLC works on the premise that a chemical will have varying affinities for the mobile and stationary phases, which will influence how quickly it migrates. TLC aims to produce well-defined, well-separated spots.

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D. a) propanoyl chloride with (1) AlCl3 and (2) H2O b) Br2 / heat or light.

What is a reagent?

A reagent is a substance that is used in a chemical reaction to detect, measure, examine, or produce other substances. Reagents are used in many different industries, including pharmaceuticals, environmental testing, and materials science. Reagents can be in the form of a solid, liquid, or gas, and are generally made from a combination of elements, compounds, or mixtures.

a) The reaction of propanoyl chloride with AlCl3 and H2O can be represented as follows:

AlCl3 + H2O + Propanoyl Chloride → Al(OH)3 + HCl + Propanoic Acid

This reaction involves substitution of the chlorine atom in the propanoyl chloride molecule with a hydroxide ion from the AlCl3/H2O mixture.

b) Br2 / heat or light cannot be used to react with propanoyl chloride, as this reaction would require the breaking of the carbon-chlorine bond. This is not possible using Br2 / heat or light.

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The estimated time of death is approximately 10:30 pm the night before.

Estimating the time of death (TOD) can be a complex process, and the methods used will depend on the specific circumstances of the case. Some of the factors that may be taken into consideration include:

It is important to note that estimating the TOD is not an exact science and there are often significant margins of error. A professional forensic examination is typically needed to determine the TOD.

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In a container, the pressure of hydrogen sulfide gas is 267.4 torr.

The force of all gas particle/wall collisions divided by the area of the wall is defined as pressure (P): Pressure is one of the primary observable quantities of this phase of matter; it is exerted by all gases. The amount of force exerted per area is described as pressure. Pressure is defined as force divided by area. The pressure from snow on a roof, for example, would equal the weight of the snow divided by the area of the roof. In chemistry, pressure is often generated by gases. When you blow up a balloon, you fill it with gas.

Here,

pressure of hydrogen sulfide gas= 35650 Pa

1 torr=133.33 Pa

=35650/133.33

=267.38 torr

The pressure of hydrogen sulfide gas in a container is 267.4 torr.

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The electrons in the 2p sub level have the smallest binding energies, which is the best explanation for how the spectrum is consistent with the electron shell model of the atom. Option D is correct as a result.

Photoemission spectroscopy, often referred to as photoelectron spectroscopy, measures the amount of energy emitted by electrons from solids, gases, or liquids via the photoelectric effect. This procedure involves getting the energy for the electrons from an outside source, such as sunlight.

The photoelectric effect is a process in which electrons receive energy from an external source, such as sunlight, become excited, and transition from the ground state to the excited state. As a result of this process, there is a constant flow of electrons, which in turn causes a flow of energy.

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0Bh will be the hexadecimal value of AL (Aluminium)after these instructions execute

#D9DAD9 is the hex code for aluminum. (217, 218, 217) are the corresponding RGB values, indicating that it is made up of 33% red, 33% green, and 33% blue. Printers employ the CMYK color coding, which are C:1 M:0 Y:1 K:15. Aluminum has a brightness value of 85%, a saturation value of 0%, and a hue value of 120° on the HSV/HSB scale.Hexadecimal is the most practical number system to work with when dealing with long strings of numbers due to its compactness, aligned correspondence of 4 bits to 1 symbol, and freedom from the need to perform multiplication and addition when switching between bases (compare switching from binary to decimal and back).

complete question:What will be the hexadecimal value of AL after these instructions execute?

mov al, 0CFh

and al, 2Bh

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The remaining reactant (Aluminum Hydroxide) weighs approximately 11.73 g.

Hence, Option A is correct.

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A fossil that has 6.25% of its carbon atoms is still unstable.

Carbon-14 dating is a method of determining the age of organic material. Measures the amount of carbon-14 (a radioactive isotope of carbon) present in the sample. The half-life of carbon-14 is 5,730 years. This means that after 5,730 years, half of the carbon-14 atoms in the sample have decayed to nitrogen.

If 6.25% of the fossil carbon atoms are unstable, this means that 93.75% of the carbon-14 atoms in the sample have already decayed. To determine the age of a fossil, the following formula can be used:

Age = (half-life x ln(1-(fraction of decayed carbon-14/100))) / ln(2)

Age = ( 5,730 x ln(1 - (93.75/100))) / ln(2)

age = 11,460 years old

c. A fossil in which 75% of the atoms are STABLE.

If 75% of the fossil atoms are STABLE, this means that 25% of the carbon-14 atoms in the sample have decayed. The same formula as above can be used to determine the fossil age. 75 )) / ln(2)

Age = 23,120 years

Please note that these are approximate values, as the actual age of the fossils may be affected by various factors such as contamination, preservation, and measurement error.

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The correct answer is option C: Low temperature only, because entropy decreases during freezing.

When a substance changes from a gas to a solid, the entropy (measure of disorder) of the system decreases. This is because the solid has a more ordered structure than the gas. The decrease in entropy is accompanied by a decrease in temperature and an increase in enthalpy (heat content).For a process to be spontaneous, the entropy change must be positive, so the freezing of methane is spontaneous only if the temperature of the surroundings is lower than the temperature of the methane. Thus, the heat released from the exothermic process will be absorbed by the surroundings, the temperature of the methane will decrease, and the entropy of the system increases, driving the process towards completion.

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The complete question is :

Methane freezing is an exothermic process. Which of the following best describes the temperature conditions that are most likely to cause this spontaneous change? Because entropy increases during freezing, any temperature. Because entropy decreases during freezing, any temperature. Only at low temperatures because entropy decreases during freezing. Only at high temperatures, as entropy