Does butan-2-one or butan-2-ol have higher boiling point?


MUST HAVE GOOD EXPLANATION 30 POINTS

Titration is the traditional method for determining the concentration of sulfuric acid. This is a labor-intensive and time-consuming technique.

Concentrated sulfuric acid, which is commercially available, is 95.0% H2SO4 H 2 S O 4 by mass and has a density of 1.84 g/mL.

Sulfuric acid (H2S04) is a caustic chemical that is harmful to the skin, eyes, teeth, and lungs. Extreme exposure can be fatal. Sulfuric acid exposure may cause injury to workers. The degree of exposure is determined by the dose, duration, and type of job performed. For at least 30 minutes, wash sulfuric acid-contaminated skin with soap and lukewarm water. Skin should not be scrubbed or rubbed. Remove clothes and cleanse the skin with water if high amounts of gas or solution enter it. Get medical assistance right away.

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The correct answers are A, B, C, D, and E.  A is sunlight, D is ATP, B is H2O,  C is CO2 + C6H12O6, and F is CO2 + H2O.  

In cellular respiration, the products and reactants for photosynthesis are switched around: Carbon dioxide and water, which are byproducts of cellular respiration, are the reactants in photosynthesis. Oxygen and sugar, byproducts of photosynthesis, are the reactants of cellular respiration.

The reactants are oxygen and glucose, and the products are carbon dioxide, water, and energy.

The reactants in the process of cellular respiration are oxygen and glucose. ATP is the primary product of cellular respiration, and carbon dioxide and water are waste products.

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At a certain temperature, the equilibrium concentration of hydrogen and iodine gas are 0.291 M and 0.172 M, respectively. At this temperature, the equilibrium constant, Kc, is 30.6. The concentration of hydrogen iodide gas under these conditions is 1.24 M.

When a chemical process reaches equilibrium, the equilibrium constant (often represented by the letter K) sheds light on the interaction between the reactants and products. For instance, the ratio of the concentration of the products to the concentration of the reactants, each raised to their respective stoichiometric coefficients, can be used to establish the equilibrium constant of concentration (denoted by Kc) of a chemical reaction at equilibrium.

At equilibrium, Rate of the forward reaction = Rate of the backward reaction.

For the reaction,

H₂(g) + I₂(g) ⇔  2HI(g)

K = [tex]\frac{HI^{2} }{H2*I2}[/tex]

Substituting the values and solving for [HI],

[HI] = 1.24M

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high pressure and heat is needed for coal to form

The correct answer is (B) high pressure and heat.

Coal is a fossil fuel that forms over millions of years from dead plant material. The process of coal formation begins with the accumulation of organic matter, such as leaves, branches, and other plant material, in a low-oxygen environment, such as a swamp or bog.Over time, the weight of the sediment above the organic matter compresses it and the heat from the earth's core increases the temperature, causing chemical and physical changes to occur. This process, known as coalification, results in the formation of different types of coal, such as lignite, sub-bituminous, bituminous, and anthracite, depending on the degree of heat and pressure applied.

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In the nineteenth and twentieth centuries, cast iron—also known as gray cast iron was a type of pipe that was utilized as a pressure pipe for the transfer of water and sewage.

Any natural or manufactured product that is applied to soil or plant tissues to provide nutrients for plants (see spelling variations) is an example. It is possible to differentiate fertilizers from liming materials and other non-nutritious soil additives.

Iron oxide, a chemical that is used a lot, is known as rust. Iron's rapid interaction with oxygen results in the formation of iron oxide, or Fe₂O₃, which is so common that pure iron rarely occurs in nature.

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Answer:

there are 0.5 molecules of hydrogen

3.47 moles Li is made up of 3.01x1023 atoms. The cubic body-centered structure of lithium metal. Its molarity is 6.94 g mol1, and its dense is 0.53 g cm3. Determine the lithium metal unit cell's edge.

Correct option  is, A.

Lithium has a mass number of 7. Every element's mass number is equal to the sum of its protons and neutrons. With data from the Cyclic Table of Elements, you can calculate the number if neutrons, protons, or the mass number of each element. Since lithium has a 3 atomic number, that has 3 protons.

Lithium-7 is a stable (non-radioactive) isotope of the metal lithium. Both naturally occuring and produced by fission. Lithium 7 metal is one of the almost 250 metal based isotopes that American Element produces for base material, biological and medical tagging, or other purposes.

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The partial pressure of Ne in the container is 7.70 atm, and the partial pressure of Ar is 3.90 atm.

option C.

To calculate the partial pressure of Ne and Ar in the container, we need to use the ideal gas law:

PV = nRT

where;

We can first calculate the number of moles of Ne and Ar:

n(Ne) = 10.0 g / 20.18 g/mol = 0.495 mol

n(Ar) = 10.0 g / 39.95 g/mol = 0.250 mol

The total number of moles of gas in the container is:

n(total) = n(Ne) + n(Ar) = 0.495 mol + 0.250 mol = 0.745 mol

We can now use the ideal gas law to calculate the total pressure of the gas mixture:

P(total) = (n(total) * R * T) / V

Plugging in the values, we get:

P(total) = (0.745 mol * 0.08206 Latm/molK * 310 K) / 1.60 L = 11.6 atm

The partial pressure of Ne and Ar can be calculated using their mole fraction in the gas mixture:

X(Ne) = n(Ne) / n(total) = 0.495 mol / 0.745 mol = 0.664

X(Ar) = n(Ar) / n(total) = 0.250 mol / 0.745 mol = 0.336

The partial pressure of Ne and Ar are:

P(Ne) = X(Ne) * P(total) = 0.664 * 11.6 atm = 7.70 atm

P(Ar) = X(Ar) * P(total) = 0.336 * 11.6 atm = 3.90 atm

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The given chemical equation represents the reaction between iron (Fe) and oxygen (O₂) to form iron oxide (Fe₃O₄).

The reaction between iron and oxygen to form iron oxide is a type of redox reaction, which involves the transfer of electrons between the reactants. In this reaction, iron loses electrons (oxidation) while oxygen gains electrons (reduction).

The balanced chemical equation for this reaction is:

6Fe + 4O₂ → 2Fe₃O₄

This equation shows that:

The equation is balanced because the same number of atoms of each element is present on both the reactant and product sides of the equation.

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Initial solution concentration of the original sulfuric acid solution is 1.66.

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The mass of  [tex]Mg(OH)2[/tex] in a 215 mL of a 0.350 M solution is 4.386 kg where the number of moles is  75.25.

Given the volume of solution of [tex]Mg(OH)2[/tex]= 215mL

The concentration of solution of[tex]Mg(OH)2[/tex]= 0.350M

Let the mass of [tex]Mg(OH)2[/tex] solution = m

We know the mass of solution by calculating the number of moles of substance. Since we are given the volume of the solution (215 mL) and the molarity (0.350 M), we can calculate the number of moles of [tex]Mg(OH)2[/tex]using the formula M = n/V, where M is molarity, n is the number of moles, and V is the volume.

n = M x V

n = 0.350 * 215 = 75.25 moles of [tex]Mg(OH)2[/tex]

Now that we know the number of moles of [tex]Mg(OH)2[/tex], we can calculate the mass of [tex]Mg(OH)2[/tex] in the solution.

Mass = n x Molar Mass

the molar mass of [tex]Mg(OH)2[/tex] = (58.32 g/mol)  

Mass = 75.25 moles x 58.32 g/mol

Mass = 4.386 kg of  [tex]Mg(OH)2[/tex]

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We must melt about 3.8 kg of brass A, 4.1 kg of brass B, and 6.5 kg of brass C to obtain about 14.5 kg of the desired alloy

we can set up a system of equations based on the conservation of mass and the desired composition:

0.533x + 0.247y + 0.220z = 14.5 (desired composition of copper, zinc, and nickel)

The given information includes:

Brass A: 41% copper, 23% zinc, 36% nickel

Brass B: 54% copper, 23% zinc, 23% nickel

Brass C: 56% copper, 26% zinc, 18% nickel

Using this information, we can write the following equations:

0.41x + 0.54y + 0.56z = 0.533(x + y + z) (copper)

0.23x + 0.23y + 0.26z = 0.247(x + y + z) (zinc)

0.36x + 0.23y + 0.18z = 0.220(x + y + z) (nickel)

Simplifying each equation, we get:

0.067x - 0.027y - 0.023z = 0 (copper)

-0.017x + 0.017y + 0.003z = 0 (zinc)

-0.020x - 0.027y + 0.038z = 0 (nickel)

We can solve the equations using substitution method or elimination method and our values will be:

x = 3.8462

y = 4.1077

z = 6.5461

In conclusion, we need to melt about 3.8 kg of brass A, 4.1 kg of brass B, and 6.5 kg of brass C to obtain about 14.5 kg of the desired alloy.

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Answer:

K3PO4 + Al(NO3)3 → 3KNO3 + AlPO4

The stoichiometry of the reaction indicates that 1 mole of K3PO4 produces 3 moles of KNO3.

Therefore, to calculate the moles of KNO3 produced, we need to multiply the moles of K3PO4 by the stoichiometric coefficient of KNO3, which is 3:

Moles of KNO3 = 15.7 moles K3PO4 x (3 moles KNO3/1 mole K3PO4) = 47.1 moles KNO3

So, 15.7 moles of K3PO4 will produce 47.1 moles of KNO3.

Explanation:

Answer:

The molar mass of propylamine (C3H9N) can be calculated as follows:

Molar mass of C3H9N = (3 × molar mass of C) + (9 × molar mass of H) + (1 × molar mass of N)

= (3 × 12.01 g/mol) + (9 × 1.01 g/mol) + (1 × 14.01 g/mol)

= 59.11 g/mol

This means that one mole of propylamine has a mass of 59.11 g.

To find the mass of 4.21×1024 molecules of propylamine, we can use the following steps:

Determine the number of moles of propylamine in 4.21×1024 molecules:

Number of moles = Number of molecules ÷ Avogadro's number

= 4.21×1024 ÷ 6.022 × 10^23

= 6.997 mol (rounded to three decimal places)

Calculate the mass of 6.997 moles of propylamine:

Mass = Number of moles × Molar mass

= 6.997 mol × 59.11 g/mol

= 413.9 g (rounded to one decimal place)

Therefore, the mass of 4.21×1024 molecules of propylamine is 413.9 g.

The reaction quotient at chemical equilibrium is K=2.0 105; regardless of the initial concentrations, the equilibrium constant is constant for the given reaction.

Temperature-dependent equilibrium constants are unaffected by the amount of a reaction, the presence of a catalyst, or inert substances. Moreover, it is unaffected by reactant quantities, pressures, or concentrations. In general, the reaction determines how much the equilibrium constant depends on temperature.

The balanced equation's form determines the equilibrium constant for a reaction. K is inverted if the equation is turned around. K is increased to the nth power if the equation is multiplied by n different factors.

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Answer:

38.1g

Explanation:

Determine the molar mass of aluminum (Al): 26.98 g/mol

Convert the number of atoms of Al to moles of Al:

8.50×10^23 atoms Al × (1 mol Al/6.022×10^23 atoms Al) = 1.41 mol Al

Calculate the mass of Al in the foil using the molar mass:

1.41 mol Al × 26.98 g/mol = 38.1 g

Therefore, the mass of the aluminum foil is 38.1 g.

So, 5.47 x 22.4 = 122 L has now become the volume of oxygen.

Depending on the type of combination and where the carbon atom is attached, oxygen can be divided into three volumes: 251, 445, and 753.

You really do have to know a box's height, breadth, and depth in order to determine its volume. These three dimensions can be multiplied to determine the volume.

The volume of a three-dimensional item is expressed in cubic units and represents the amount of space it occupies. On the other hand, an item's mass can be used to calculate how much matter it contains. The most frequent method of calculating mass is by weighing an object (in units like pounds or kilograms).

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The final concentration of the solution is 1.54 M. The quantity of solute present per 100 ml of the solution is considered the solution's concentration.

The amount of solute that has been dissolved in a specific volume of solvent or solution is measured by the solution's concentration. There are a lot of dissolved solutes in a concentrated solution.

To find the final concentration,

we can calculate the concentration of the initial solution:

C1V1 = C2V2

where C1 = initial concentration, V1 = initial volume, C2 = final concentration, and V2 = final volume.

We can solve for C1:

C1 = (C2V2) / V1

Substitute the values,

C1 = (1.20 M * 208 mL) / 57.0 mL

C1 = 4.40 M

the initial concentration of the solution was 4.40 M.

Now we need to calculate the final concentration of the solution after diluting a 104 mL portion with 193 mL of water

C1V1 = C2V2

where C1 = initial concentration (4.40 M), V1 = initial volume (104 mL), C2 = final concentration, and V2 = final volume (104 mL + 193 mL = 297 mL).

We can solve for C2:

C2 = (C1V1) / V2

C2 = (4.40 M * 104 mL) / 297 mL

C2 = 1.54 M

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The correct nuclide symbol for this atom is: D. ¹³²⁴⁶Ge, where ¹³² is the mass number (protons + neutrons) and ⁴⁶Ge is the chemical symbol for the element germanium, which has 32 protons.

An atom is the basic unit of matter, consisting of a nucleus composed of protons and neutrons, surrounded by a cloud of negatively charged electrons. The protons and neutrons are located in the nucleus at the center of the atom and are collectively known as nucleons. The number of protons in the nucleus determines the atomic number of the atom, which in turn determines the identity of the element. Each element has a unique atomic number, and the elements are arranged in the periodic table in order of increasing atomic number. Electrons are negatively charged particles that orbit the nucleus in shells or energy levels. The number and arrangement of electrons in an atom's shells determine its chemical and physical properties, such as reactivity, conductivity, and melting point.

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2.5 g of sodium-24 will still be present in the sample after 45.0 hours.

The chemical element sodium has the atomic number 11 and the symbol Na. It is an alkali metal, which is a soft, silvery-white, highly reactive group of elements. The Earth's crust is rich in sodium, which can be found in a variety of minerals like sodalite and halite (rock salt).

The sodium-24 half-life is 15.0 hours, which indicates that after 15.0 hours, only 50% of the initial sodium-24 concentration will be present. This data allows us to calculate how much sodium-24 is still present after 45.0 hours.

The number of half-lives that have transpired throughout the 45.0-hour timeframe must first be determined:

45.0 h / 15.0 h/half-life = 3 half-lives

As a result, there will be the following amount of sodium-24 after 45.0 hours:

(1/2)^3 x initial amount of sodium-24 = (1/8) x 20.0 g = 2.5 g

Hence, 2.5 g of sodium-24 will still be present in the sample after 45.0 hours.

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Hydrogen bonds are the sort of intermolecular force present in the sample molecule.

A hydrogen atom develops a strong dipole-dipole contact with another electronegative atom in a neighboring molecule when it is covalently bound to a strongly electronegative element (such as nitrogen, oxygen, or fluorine). This is known as hydrogen bonding.

The electronegative oxygen atom in the given molecule, which can also establish a hydrogen bond with another electronegative atom (such as another oxygen or nitrogen atom) in an adjacent molecule, is bound to the hydrogen atoms attached to the carbon atom in the middle.

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In hot and dry climates, fountains of gently dripping water can be effective in cooling courtyards and providing a more comfortable outdoor environment. This is primarily due to two main cooling mechanisms: evaporative cooling and thermal mass.

Evaporative cooling: When water evaporates, it absorbs heat from its surroundings, causing the temperature to drop. In a hot and dry climate, the air has a low relative humidity, which allows for more evaporation to occur. As the water in the fountain evaporates, it takes in heat from the surrounding air, lowering the air temperature. This cooling effect is particularly pronounced in areas with good airflow, as the movement of air helps to disperse the cooler air and increase evaporation.

Thermal mass: Water has a high heat capacity, meaning it can absorb and store a large amount of heat energy without undergoing significant changes in temperature. As the water in the fountain absorbs heat from the surrounding air and surfaces, it helps to keep the courtyard temperature cooler than it would be without the water. The cool water can then release its stored heat energy slowly during the night when temperatures drop, providing a more stable and comfortable outdoor temperature over a 24-hour period.

Additionally, fountains can help create a more pleasant atmosphere in courtyards by providing a visual and auditory focal point. The sight and sound of gently dripping water can be soothing and calming, making the space more enjoyable and inviting.

Answer:

See the attachment.

Explanation:

A solution that can be added to copper sulfate solution to show the presence of copper(ii) ions is sodium hydroxide.

To test for copper (II) ions using copper (II) sulfate, you can use a simple chemical reaction known as displacement reaction.

The steps are given below:

To confirm the presence of copper (II) ions, add excess sodium hydroxide solution to the test tube. The excess NaOH will cause the blue precipitate to dissolve, forming a deep blue solution.

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Murray Gell-Mann, George Zweig, and other scientists developed the Standard Model of particle physics to explain and unify the behavior of subatomic particles, which are the fundamental building blocks of matter.

Prior to the development of the Standard Model, physicists had discovered a large number of subatomic particles and had organized them into a confusing and seemingly chaotic menagerie. There were mesons, baryons, hadrons, leptons, and many other types of particles, each with their own unique properties and behaviors. It was unclear how all these particles fit together or what underlying principles governed their behavior.

The Standard Model provided a framework for understanding the behavior of subatomic particles based on a set of fundamental particles and forces. According to the Standard Model, all matter is made up of six types of quarks, six types of leptons, and four fundamental forces: the strong nuclear force, the weak nuclear force, electromagnetism, and gravity. These particles and forces are described by a set of equations that can be used to predict their behavior in a wide range of situations.

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An experiment in which the starting concentration of hydrogen peroxide , the concentration of H₂O₂ 450 minutes after the reaction started is 0.104 M.

Option B is correct.

A chemical reaction of the first order in which the rate of the reaction is solely determined by the concentration of a single reactant raised to the first power is known as a first-order reaction. To put it another way, the concentration of the reactant has a direct bearing on the rate of the reaction.

The rate law for a first-order reaction can be obtained by:

                          rate = k[H₂O₂]

The rate constant for the acid-catalyzed breakdown of hydrogen peroxide, k = 1.33 x 104 min1, is given to us. The integrated rate law for a first-order reaction must be utilized in order to ascertain the H₂O₂ concentration after 450 minutes:

                           ln([H₂O₂]t/[H₂O₂]0) = -kt

where [H₂O₂]t is the concentration of H₂O₂ at time t, [H₂O₂]0 is the initial concentration of H₂O₂, k is the rate constant, and t is time. Solving for [H₂O₂]t, we get:

                                   [H₂O₂]t = [H₂O₂]0

Substituting the given values, we get:

                                      [H₂O₂]450 = 0.110 M e⁻¹.³³ˣ¹⁰⁻⁴ˣ⁴⁵⁰

[H₂O₂]450 = 0.104 M

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The temperature of balloon when it can hold 85 L of air is inflated with 3.5 moles of gas at 1 atmosphere is 295.8K

Given the  volume of air in balloon (V) = 85L

The pressure of air (P) = 1atm

The number of moles of gas (n) = 3.5

Let the temperature of the balloon = T

We know that from ideal gas equation: PV = nRT where R is the gas constant = 0.0821 atm*L/mol*K. The Ideal Gas Law is an equation of state that describes the behavior of a gas as an ideal gas.

So, by substituting the values we get:

1 * 85 = 3.5 * 0.0821 * T

T = 295.8K

Hence the required temperature of balloon is 295.8K

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To calculate the Gibbs energy, we need to use the equation:

ΔG = -RT ln(K)

where:

ΔG = Gibbs energy

R = gas constant (8.314 J/mol·K)

T = temperature in Kelvin (35°C = 308.15 K)

K = equilibrium constant

Substituting the values given, we get:

ΔG = -(8.314 J/mol·K)(308.15 K) ln(8.2 x 10^-11)

ΔG = - (8.314 J/mol·K)(308.15 K) (-23.268)

ΔG = 6,415.18 J/mol

Therefore, the Gibbs energy for K = 8.2 x 10^-11 and T = 35°C is 6,415.18 J/mol.