The pressure caused by a sample of gas is 2.25 atm. 1 atm is
equal to 1.01 kPa. What is the pressure in Newton per square
centimeter?

Chlorinating copper is a step in the production of copper(II) chloride for commercial use. Copper (II) chloride is produced when chlorine gas and copper are mixed directly at red heat (300–400°C).

Copper(I) chloride can be produced by reducing copper(II) ions in the presence of chloride ions. Possible methods include bubbling sulphur dioxide through an aqueous solution of copper(II) chloride or boiling a mixture of copper sulphate, sodium chloride, and ascorbic acid.

creating CuCl, also known as Chlorinating copper. When chloride ions are present, the desired outcome is to produce copper(I) chloride by reducing copper(II) chloride with sulfite ions. At the end of this session, students should be able to: Recognize and store inorganic compounds having unstable oxidation states. A substance that cannot be divided into simpler forms by any common technique is said to be an element. A chemical compound is a material made up of two or more elements that have been chemically mixed.

Element and element, element and compound, or even compound and compound, might be the constituents of a material.

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If an equation includes 7(CrO₄)₂, the numbers of Cr's and O's atoms that are there are 14 and 56 respectively.

The number of atoms present in a chemical compound can be calculated by multiplying the subscript of the particular element by any coefficient.

According to this question, 7 moles of chromate with the chemical formula; (CrO₄)₂ is given. The number of oxygen and chromium atoms in this compound can be calculated as follows:

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Answer:

Soap is a mixture of sodium salts of various naturally occurring fatty acids. ... Soap is produced by a saponification or basic hydrolysis reaction of a fat or oil. Currently, sodium carbonate or sodium hydroxide is used to neutralize the fatty acid and convert it to the salt.

Explanation:

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Answer:

Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are used as thickeners, components of some lubricants, and precursors to catalysts

Answer:

Equation of Reaction

2AgNO3 + BaCl2 === 2AgCl + Ba(NO3)2

Molar Mass of AgNO3 = 170g/mol

Moles of reacting AgNO3 = 100g/170gmol-¹

=0.588moles of AgNO3

From the equation of reaction...2moles of AgNO3 reacts to Produce 2Moles of Silver Chloride

So Their ratio is 2:2.

This means that 0.588Moles of AgCl Will be produced too.

ANSWER...0.588MOLES OF AgCl WILL BE PRODUCED.

Answer: true

Explanation: An atom does of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. Protons and neutrons have nearly equal masses, but in a way they DO differ in charge.

a) A combound which contains only Carbon and Hydrogen. There are covalent bonds between atoms. Hydrogen form one single bond and Carbon forms four covalent bonds. Carbon bonds can be single, double or triple bonds.

  All hydrocarbons are organic compounds, but organic compound can include atoms of other elements.

b)  Alkyne has a  covalent triple bond between two carbon atoms. Simplest alkyne is ethyne HCCH.  

b) Alkane contains only Carbon and  Hydrogen and there are single bonds

  between atoms. Simplest alkane is methane CH4.

c) An alkene has one double bond between Carbon atoms. Simplest

alkene is ethene  H2C=CH2.

This is challenging to provide an exact prediction for the melting and boiling points. Experimental factors, impurities, and other variables can influence these values.

To predict the melting and boiling points for methylamine (CH3NH2), we can consider the differences in molecular structure and intermolecular forces compared to ethane. Methylamine has a nitrogen atom in place of one carbon atom in ethane.

Methylamine exhibits hydrogen bonding due to the presence of the nitrogen atom, which can form hydrogen bonds with other methylamine molecules. Ethane, on the other hand, lacks a hydrogen atom bonded to an electronegative atom, so it does not participate in hydrogen bonding.

Hydrogen bonding is stronger than the London dispersion forces present in ethane. Consequently, methylamine is expected to have stronger intermolecular forces and thus higher melting and boiling points compared to ethane.

Considering this, we can predict that the melting point of methylamine will be higher than -183 °C, the melting point of ethane. Similarly, the boiling point of methylamine will be higher than -89 °C, the boiling point of ethane.

However, without specific experimental data or a detailed analysis of methylamine's properties.

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In an ecosystem, the  impact of soil Science to the development of Ghana's agriculture is that it provides suitable conditions for root germination and growth.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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​

Answer:

electron carriers

Explanation:

User: Nad+ and fad are called because they move electrons and hydrogen ions throughout the cell to the mitochondria Weegy: NAD+ and FAD are called "electron carriers" because they move electrons and hydrogen ions throughout the cell to the mitochondria.

Answer:

-122 J/K

Explanation:

Let's consider the following balanced reaction.

N₂(g) + 2 O₂(g) ⇒ 2 NO₂(g)

We can calculate the standard reaction entropy (ΔS°) using the following expression.

ΔS° = Σ ηp × Sf°p - Σ ηr × Sf°r

where,

ΔS° = 2 mol × 240.06 J/K.mol - 1 mol × 191.61 J/K.mol - 2 mol × 205.14 J/K.mol

ΔS° = -121.77 J/K ≈ -122 J/K

The equilibrium constant for the reaction given that the equilibrium concentration of [PH₃] = 0.250 M, [H₂] = 0.580 M, and [P₄] = 0.750 M is 7.3

From the question given above, the following data were obtained:

The equilibrium constant for the reaction can be obtained as shown below:

Equilibrium constant = [Product]ᵐ / [Reactant]ⁿ

Where

Equilibrium constant = [H₂]⁶[P₄] / [PH₃]⁴

Equilibrium constant = [(0.580)⁶ × 0.750] / (0.250)⁴

Equilibrium constant = 7.3

Thus, the equilibrium constant for the reaction is 7.3

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The moles of SO₂ formed if you have 467.2 g of ZnS and excess O₂ is 4.79 moles.

The balanced chemical reaction of the give equation is-

2 ZnS(s) + 3 O₂(g) → 2 ZnO(s) + 2 SO₂(g)

What is mole?

Mole is defined as fundamental measurement unit which is used to measure the amount of substance.

Number of moles of ZnS = Given mass

                                             Molar mass

Moles of ZnS = 467.2 g

                          97.47 g/mol

Moles of ZnS = 4.79 moles

From the reaction, we know that

2 moles of ZnS forms 2 moles of SO₂

4.79 moles of ZnS forms 2 x 4.7 moles of SO₂

                                         2

Moles of SO₂ = 4.79 mol

Hence, the moles of SO₂ can be formed is 4.79 moles.

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The molar mass of the given gas is equal to 68.48 g.

The ideal gas law can be described as an equation of the state of a hypothetical perfect gas. This equation can be represented as the product of the volume and pressure of one-mole perfect gas is equal to the product of the universal gas constant and absolute temperature of that gas.

The mathematically, ideal gas equation can be written as follows:

PV = nRT

Where n is the moles of gas, P is the pressure,  V is the volume of the gas,  and R is the gas constant.

Given, the volume of collected gas, V = 165 ml = 0.165 L

The temperature of the gas, T = 27° C = 273 + 27 = 300 K,

The pressure of gas, P = 765 mmHg = 0.99 atm

The value of the gas constant, R = 0.082 atm L /K mol

Substituting the values V, R, P, and T in the equation, we get:

The number of moles of the gas, n = PV/RT

n = 0.99 ×0.165/(0.082 × 300)

n = 0.0066 mol

The molar mass of the gas = 0.452/ 0.0066 =68.48 g/mol

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1. The IUPAC name of N is nitrogen.

2. Nitrogen dioxide

3.The IUPAC name of O is oxygen

4.The IUPAC name of OH is hydroxyl.

The IUPAC name of ·0 is a radical. It is commonly found in organic chemistry and plays an important role in many reactions.

IUPAC names for the given compounds are:1.1. N: Nitrogen

The IUPAC name of N is nitrogen.

It is a non-metal and belongs to group 15 in the periodic table. It has an electronic configuration of 1s2 2s2 2p3.1.2. NO2: Nitrogen dioxide

Explanation: NO2 is a chemical compound that is formed by the combination of nitrogen and oxygen. It is a reddish-brown gas that has a pungent odor.

The IUPAC name of NO2 is nitrogen dioxide.1.3. O: Oxygen

Explanation: The IUPAC name of O is oxygen.

It is a non-metal and belongs to group 16 in the periodic table. It has an electronic configuration of 1s2 2s2 2p4.

X: UnknownExplanation: No IUPAC name can be given to an unknown compound as the structure and composition are not known.

Y: Hydroxyl Explanation: The IUPAC name of OH is hydroxyl.

It is a functional group that is composed of an oxygen atom and a hydrogen atom (-OH). It is commonly found in alcohols and phenols. ·0: RadicalExplanation: A radical is a molecule or an ion that contains an unpaired electron.

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Note: The complete question is given below

Provide the IUPAC names for the following compounds:

\(CH_3CH_2CH(CH_3)CH_2CH_2CH_2CH_3\)

C6H5CH(CH3)2

H2NCH2CH2CH2CH2CH2NH2

CH3CH2CH2CH2CH2OH

CH3CH2CH2CHOHCH3

Answer:

The mass of sodium sulfate formed by the comolete reaction of 120.0 grams of sodium hydroxide is 142.04 grams.

Explanation:

The balanced chemical equation for the reaction between sodium hydroxide and sulfuric acid is:

2NaOH + H2SO4 -> Na2SO4 + 2H2O

From the equation, we can see that 2 moles of sodium hydroxide react with 1 mole of sulfuric acid to form 1 mole of sodium sulfate. We can use this information, along with the molar masses of the compounds, to calculate the mass of sodium sulfate formed.

First, we need to convert the given mqss of sodium hydroxide to moles. The molar mass of sodium hydroxide is 40.00 g/mol, so:

Moles of NaOH = Mass of NaOH / Molar mass of NaOH

Moles of NaOH = 120.0 g / 40.00 g/mol

Moles of NaOH = 3.00 mol

Next, we can use the mole ratio from the balanced equation to calculate the moles of sodium sulfate formed:

Moles of Na2SO4 = Moles of NaOH / 2

Moles of Na2SO4 = 3.00 mol / 2

Moles of Na2SO4 = 1.50 mol

Finally, we can convert the moles of sodium sulfate to grams using its molqr mass of 142.04 g/mol:

Mass of Na2SO4 = Moles of Na2SO4 x Molar mass of Na2SO4

Mass of Na2SO4 = 1.50 mol x 142.04 g/mol

Mass of Na2SO4 = 213.06 g

Therefore, the mass of sodium sulfate formed by the complete reaction of 120.0 grams of sodium hydroxide is 213.06 grams.

Answer:

This was determined with a precision of better than 1% by Robert A. Millikan in his famous oil drop experiment in 1909. Together with the mass-to-charge ratio, the electron mass was thereby determined with reasonable precision.

Step 1

The chemical formula of iron (III) sulfate is the next one:

Fe2(SO4)3

As we can see, there are 3 x 1 atom of S, 3 atoms of S

----------------

Step 2

Information needed:

The atomic masses of:

Fe) 55.8 g/mol

S) 32.0 g/mol

O) 16.0 g/mol

(Please, the periodic table is useful here)

----------------

Step 3

The % of S in Fe2(SO4)3 is calculated as follows:

Answer: 24 % of S

Considering the reaction stoichiometry, the total number of moles of NO produced from 0.25 moles of O₂ is 0.2 moles.

The balanced reaction is:

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

Then you can apply the following rule of three: if by stoichiometry 5 moles of O₂ produce 4 moles of NO, 0.25 moles of O₂ will produce how many moles of NO?

\(amount of moles of NO= \frac{0.25 moles of O_{2} x4 moles of NO}{5 moles of O_{2} }\)

amount of moles of NO= 0.2 moles

Finally, the total number of moles of NO produced from 0.25 moles of O₂ is 0.2 moles.

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Answer:

yes, the cells in the liguid is all congrating together.

Explanation:

Answer:

Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. In cellular respiration sugar with the help of oxygen is broken down into ATP (energy molecule).

The structural formula of butanol is C4H9OH. It consists of a chain of four carbon atoms, with a hydroxyl (-OH) group attached to one of the carbon atoms. Butanol has several structural isomers, which have the same molecular formula but different structural formulas.

A structural isomer is a compound that has the same molecular formula as another compound but has a different arrangement of its atoms. A string of 4 C atoms are bonded above, below, left, and right to H, except the second C, which is bonded below to O, which is bonded below to H is a structural isomer of butanol.

This is called butan-2-ol. The structural formula of butan-2-ol is CH3CH(OH)CH2CH3. In this isomer, the hydroxyl group is attached to the second carbon atom in the chain, whereas in butanol, the hydroxyl group is attached to the first carbon atom in the chain.

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The chemical name for the compound CH3CH₂CH₂CH3 is butane.

Alkanes are any acyclic saturated hydrocarbon with a carbon to carbon single bond e.g. methane, ethane etc.

Alkanes have a general molecular formula of CnH2n+2. The number of carbon atoms determines the name of the alkane member.

According to this question, a chemical compound with the molecular formula; CH3CH₂CH₂CH3 is given. This compound posseses 4 carbon atoms and 10 hydrogen atoms, hence, is butane.

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Answer:

a solution can be acidic, alkaline/basic , amphoteric

Answer 1:

During the summer months in the northern hemisphere (where the United States is located), Earth is in position C, which is when the northern hemisphere is tilted towards the sun.

Answer 2:

The highest tide occurs during the full moon phase, which is represented by position C in the diagram.

Answer 3:

A star that has a luminosity of 10^-2 is likely a red dwarf.

Answer 4:

Telescopes that observe short-wavelength radiation, such as X-rays and gamma rays, do not need to be placed in orbit around Earth because these wavelengths are absorbed by the atmosphere. Therefore, telescopes that observe these wavelengths are typically placed in space, outside of Earth's atmosphere.

Answer 5:

The student is likely demonstrating the relationship between the Earth and the Sun's gravitational pull. The ball represents the Sun, and the string represents the gravitational force pulling the Earth towards the Sun. The demonstration shows how the Earth orbits the Sun due to this gravitational force.

Gravitational force is described as a force that exists between any two objects in the universe that have mass.

It is the force that causes objects with mass to be attracted to each other. The magnitude of the gravitational force between two objects depends on their masses and the distance between them.

Along with the electromagnetic force, the strong nuclear force, and the weak nuclear force, gravity is one of the four fundamental forces of the universe.

Sir Isaac Newton initially introduced it in his law of universal gravitation, and Albert Einstein later elaborated on it in his theory of general relativity.

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The balanced nuclear equation for the beta decay of 234/90Th can be represented as follows: ^234/90Th --> ^234/91Pa + e^0/-1β

In this equation, the nucleus of thorium-234 (234/90Th) undergoes beta decay. During beta decay, a neutron within the nucleus is converted into a proton, resulting in the emission of an electron (beta particle). As a result, the thorium-234 nucleus is transformed into protactinium-234 (234/91Pa) by gaining one proton.

The beta particle emitted during the decay process is represented as e^0/-1β, where the superscript 0 denotes that the electron has no charge (neutral), and the subscript -1 indicates that the electron carries a negative charge of -1.

It is important to note that in a nuclear equation, the total atomic mass and atomic number on both sides of the equation must be equal to maintain a balanced equation and conserve mass and charge.

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Answer:

See explanation

Explanation:

a)  The average kinetic energy of the molecules of a gas depends on the temperature and the molar mass of the gas. However, at the same temperature, all gases have the same average kinetic energy. Hence Xe and Ne atoms have the same average kinetic energy.

b) To decrease the kinetic energy of Xe atoms the temperature must be changed. When the temperature is changed, Xe a lower average kinetic energy due to its larger molar mass.

c) All gases occupying the same volume have equal number of particles at the same temperature and pressure according to Avogadro's law. Therefore, since Xe and Ne occupy the same volume at the same temperature but different pressures they do not contain the same number of particles. Xe gas contains more particles because there are more moles of Xe gas present than moles of Ne gas. The greater the number of moles of gas present, the more the number of gas particles present.

✅The racial numbers are all the numbers that can represent as the quotient of two numbers enter or, more precisely, an entity and a natural positive; The term "racial" refers to a fraction or part of a whole.

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The given reaction releases 906 kJ of heat energy when 4 moles of ammonia react.

So, the amount of heat energy released when 1 mole of ammonia reacts is:

906 kJ ÷ 4 mol = 226.5 kJ/mol

To produce 453 kJ of heat energy, we can use the following proportion:

226.5 kJ/mol = 453 kJ/x

where x is the number of moles of ammonia required.

Solving for x, we get:

x = (453 kJ × 4 mol) ÷ 906 kJ

x ≈ 2 mol

Therefore, 2 moles of ammonia must react to produce 453 kJ of heat energy.

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The given reaction releases 906 kJ of heat energy when 4 moles of ammonia react.

So, the amount of heat energy released when 1 mole of ammonia reacts is:

906 kJ ÷ 4 mol = 226.5 kJ/mol

To produce 453 kJ of heat energy, we can use the following proportion:

226.5 kJ/mol = 453 kJ/x

where x is the number of moles of ammonia required.

Solving for x, we get:

x = (453 kJ × 4 mol) ÷ 906 kJ

x ≈ 2 mol

Therefore, 2 moles of ammonia must react to produce 453 kJ of heat energy.

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The 0.0500 M HNO2 solution has a pH of 1.81 and a 44.5% ionisation percentage.

A solution's acidity or basicity is determined by its pH. It is described as the solution's hydrogen ion concentration's negative logarithm. While lower pH values denote acidity and higher ones denote basicity, a pH of 7 is regarded as neutral.

Since HNO2 is a weak acid, the percent ionisation and pH of the solution can be determined using the acid dissociation constant (Ka) formula.

Ka = (H+)(NO2-)/(HNO2)

We can write: Ka = x2 /, where x is the concentration of H+ and NO2- and (0.0500-x) is the concentration of HNO2 (0.0500 - x)

The quadratic formula is used to solve for x, and the result is x = 0.0154 M

For these reasons, [H+] = [NO2-] = 0.0154 M and [HNO2] = 0.0346 M.

We apply the formula: to determine the % ionisation.

% ionisation is calculated as [H+]/[HNO2] x 100%, or (0.0154 / 0.0346) x 100, or 44.5%

We use the following formula to determine pH:

pH = -log(0.0154) = 1.81 where pH = -log(H+)

As a result, the 0.0500 M HNO2 solution has a pH of 1.81 and a 44.5% ionisation percentage.

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The electrical conductivity is mainly determined by the types of chemical bonds; metallic bonds cause metals to have high electrical conductivity, and these are favored for wires.