Provide the IUPAC name and structure for the alkyne expected to produce the two compounds listed below upon ozonolysis. CH3CH2CO2H and (CH3)3CCO2H

Answer:

11

Explanation:

Answer:

-847kj

Explanation:

Delta E= -256+-591

The change in the internal energy of the system is -850 J.

The given parameters;

The change in the internal energy of the system is determined by applying the first law of thermodynamics as shown below;

ΔU = Q - W

where;

ΔU = (-259) - 591

ΔU = - 850 J

Thus, the change in the internal energy of the system is -850 J.

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Answer:

Hopefully this helps!

Explanation:

In the Brewing Stand menu, you place ingredients in the top box and the potions are created in the bottom three boxes. To make a Potion of Strength (3:00), you will need 1 water bottle, 1 nether wart, and 1 blaze powder.

The bulk density at 20 percent moisture, given that the soil dries to 20 percent by weight is 1.4 g/cm³

First, we shall obtain the initial volume of the soil. Details below:

Volume = mass / density

Initial volume of soil = 100 / 1.3

Initial volume of soil = 76.93 cm³

Next, we shall obtain the volume after the soil dries to 20 percent by weight. Details below:

We were told that the soil shrinks by an amount equal to the water loss, thus we have

Initial mass of water = 40% = 40 g

Water lost = 20% = 20 g

New mass of water = 40 - 20 = 20 g

Thus,

Volume = Equal value of mass of water lost = 20 cm³

Finally, we shall obtain the bulk density at 20 percent moisture. Details below:

Bulk density at 20 percent moisture = Total mass / new volume

Bulk density at 20 percent moisture = 80 /  5.93

Bulk density at 20 percent moisture = 1.4 g/cm³

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The pressure inside the canister at a campfire temperature of 1500°C is 0.227 atm

Given that the temperature of the campfire is 1500°C, the volume of the aerosol canister is 1500 milliliters, and the number of moles of gas in the canister is 3 moles.The ideal gas equation is given as PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the ideal gas constant, and T is the absolute temperature of the gas in Kelvin.To convert 1500°C to Kelvin, we use the equation: T(K) = T(°C) + 273T(K) = 1500 + 273T(K) = 1773 KSubstitute the values given in the ideal gas equation:P = (nRT) / VWe are given n, R, V, and T, hence we substitute and solve for P as follows:P = (3 × 0.082 × 1773) / 1500P = 0.227 atm.It is not safe to put an aerosol canister in a campfire because the pressure inside the canister will increase at higher temperatures. If the pressure in the canister continues to increase beyond the safe limit, it can explode. Therefore, always keep aerosol canisters away from sources of high temperatures.

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The total kilojoules in two tablespoons is  836.8 kJ.

To determine the total kilojoules in two tablespoons of a substance, we need to know the specific substance and its energy content per tablespoon. Different substances have different energy values, so without this information, it is not possible to provide an accurate calculation.

The energy content of food or substances is typically measured in kilocalories (kcal) or kilojoules (kJ). 1 kilocalorie is equal to 4.184 kilojoules. The energy content of a substance is often listed on food labels or in nutritional databases.

For example, if we have the energy content of a substance as 100 kilocalories (kcal) per tablespoon, we can convert it to kilojoules by multiplying it by 4.184:

100 kcal * 4.184 kJ/kcal = 418.4 kJ

So, if we have two tablespoons of this substance, the total energy would be:

418.4 kJ/tablespoon * 2 tablespoons = 836.8 kJ

It's important to note that the energy content of a substance can vary depending on its composition, density, and other factors. Therefore, it is always recommended to refer to reliable sources such as food labels, nutritional databases, or consult a qualified professional to obtain accurate information regarding the energy content of specific substances.

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The pH of the lactic acid solution after the addition of 0.00mL of NaOH is 2.49.

The pH of the lactic acid solution after the addition of 0.00mL of NaOH is determined as follows:

Ka =  [H⁺] * [A⁻] / [HA]

pKa = 3.86

Ka = 10⁻³°⁸⁶

Ka = 1.38 * 10⁻⁴

[H⁺] is hydrogen ion concentration = x

[A⁻] is the concentration of conjugate base at equilibrium = x

[HA] is the concentration of the acid at equilibrium = 0.10 M

HC₃H₅O₃ ⇄ H⁺ + C₃H₅O₃⁻

Ka =  [H⁺] * [C₃H₅O₃⁻] / HC₃H₅O₃

Ka = x * x / 0.1 - x

assuming x is negligible, 0.1 - x = 0.1

1.38 * 10⁻⁴ = x² / 0.1

x = 3.71 * 10⁻³

[H⁺] = 3.71 * 10⁻³

pH = -log 3.71 * 10⁻³

pH = 2.49

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Marlon can conclude that the cell belongs to the Kingdom Protista if he observes that the paramecium has a nucleus.

The presence of a nucleus is a characteristic feature of eukaryotic cells, which are found in Protists, Fungi, Plants, and Animals. Therefore, if Marlon observes that the paramecium has a nucleus, he can conclude that the cell belongs to the Kingdom Protista, which includes unicellular eukaryotic organisms.

The presence of a nucleus is one of the defining features of eukaryotic cells, which are found in Protists, Fungi, Plants, and Animals. The Protista Kingdom includes unicellular organisms that have a nucleus and other membrane-bound organelles.

However, he would need to observe other features of the cell to further classify it into a specific group or species within the Protista Kingdom.

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The increasing order of the crystal field splitting- I− < Br− < S2− < SCN− < Cl−< N3 < F−< NCO−< OH−<C2O42−< O2−< H2O < acac− < NCS− < CH3CN <gly <py < NH3 < en  < bipy  < phen  < NO2−  < PPh3 < CN− < CO.

The ligands (affections to a metal ion) are listed in the spectrochemical series according to the strength of their field. The series was created by superimposing various sequences acquired from spectroscopic research because it is impossible to generate the full series by examining complexes with the single metal ion.

The ligands cyanide and CO are classified as strong-field ligands, whereas the halides are weak-field ligands. Ligands such as water and ammonia are said to create medium field effects.

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Answer:

20.44 grams of sodium nitrate can be formed

Explanation:

The balanced chemical equation for the reaction between lead (II) nitrate and sodium iodide is:

Pb(NO3)2 + 2NaI → 2NaNO3 + PbI2

Homeostatic regulation is the process through which internal cell systems are adjusted. Adjustments must be performed regularly to maintain a cell's internal and exterior surroundings at or near the set point since they are always changing (the normal level or range).

Bidirectional calcium fluxes that take place in the colon, bones, and kidney regulate calcium homeostatic. The latter organ is crucial in controlling the level of extracellular calcium.In a cell or the body, homeostasis is defined as stability, balance, or equilibrium. It is the capacity of an organism to maintain a consistent internal environment. Homeostasis is a crucial aspect of all living organisms. As circumstances within and outside the cell vary, modifications must be made often in order to maintain a stable internal environment. Homeostasis can be viewed as a dynamic equilibrium as opposed to a stable condition.

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Cations are formed through lose of electrons and thus, possess positive charge. Cations has smaller ionic radius than the neutral atom, because, they have are fewer  electrons and thus experience more nuclear attractive pull.

Cations are charged particles or ions formed by the lose of electrons from the neutral atom. Atoms acquires positive charge when they lose electrons and acquire negative charge by gaining electrons  and the negative ions are called anions.

For example, Na metal loses one electrons to form the cation Na+. Similarly Mg loses two electrons, to form Mg²⁺  ion. When these atoms loses electrons, the outermost shell can be emptied and the atomic radius shrinks to the penultimate shell.

Similarly, as the number of electrons reduces, the screening of electron from neighboring electrons reduces results in greater nuclear attractive pull and thereby the atomic radius shrinks to smaller than the neutral atom.

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The energy of the photon of light can be obtained as 6.27 * 10^-20 J.

We know that a photon has to to do with a particular unit of light. We know that light can be said to be composed of very tiny corpuscles and these corpuscles of light is what we call the photon of the light.

We can be able to us the equation that is derived by Max Plank to be able to get the value of the energy of the photon of light. Now we know that a photon of light can have an energy that is able to be obtained by;

E = hf

h = Plank's constant

f = Frequency

Then;

E = 6.6 * 10^-34 Js * 9.5 * 10^13 Hz

= 6.27 * 10^-20 J

Thus as we can see from the parameters in the question, the energy of the photon is 6.27 * 10^-20 J.

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Answer: Pentane C5H12

Explanation:

The boiling point of a substance is simply defined as the temperature whereby a liquid's vapor pressure is equal to the pressure that is surrounding the liquid and hence, the liquid will changes into vapor.

The likely molecular formula for this compound is Pentane i.e C5H12 due to the fact that its boiling point is between Butane with formula C4H10 and Hexane with formula C6H14 boiling points.

The molecular formula of the of the substance is \(\bold {C_5H_1_0}\) (pentane).

Boiling point:

It is the temperature at which liquid's vapor pressure is equal to the pressure that is surrounding the liquid and hence, the liquid start to into vaporize.

The boiling point of the given compound is 309 K which is between Butane  and Hexane.

Therefore, the molecular formula of the of the substance is \(\bold {C_5H_1_0}\) (pentane).

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The one which helps to  establish the concentration gradient necessary for this process to occur is the Na⁺/K⁺ pump.

During neuronal signaling, a change in the membrane potential will cause the  sodium channels to open and let the Na⁺ ions diffuse down the concentration gradient into the cell. The sodium - potassium pump is an enzyme. The sodium - potassium pump helps to maintain the osmotic equilibrium and the potential in the cells.

Thus, the Na⁺/K⁺ pump helps to  establish the concentration gradient necessary for this process to occur.

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Answer:

Use the Rydberg Equation 1/λ = R(1/n²(final) - 1/n²(initial) where R = 109,678 cm⁻¹. Substitute initial orbital number and final orbital number and solve for wavelength (λ).

Explanation:

Example:

Assume an electron transition from n = 5 to n = 2.

1/λ = 109,678cm⁻¹(1/2² - 1/5²) = 109,678(0.25 - 0.04)cm⁻¹ = 23,032cm⁻¹

λ = 1/23,032cm⁻¹ = 4.34 x 10⁻⁵cm x 10⁻²m/cm x 10⁹nm/m = 434nm

Thanks for the points, I need them to help other people,

Thanks,

Tqkeoi.

Answer:

Explanation:

The law of conservation of energy states that energy can neither be created nor destroyed but only changed from one form of energy to another.

The law of conservation of energy states that energy can neither be created nor destroyed but changes from one state to  another.

The law of conservation of energy states that energy can neither be created nor destroyed it can only be converted from one form of energy to another.According to this, the total energy of the system remains constant.

This statement is also a statement of first law of thermodynamics which is based on energy.Conservation of energy is distinct from conservation of mass as mass and energy are directly  proportional which is given the equation, E=mc².

Because of law of conservation of energy the perpetual motion of machine  cannot  exist. This means that  no system without an external source of energy  can supply unlimited amount of energy to its surroundings.

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These elements are located in the upper right and lower left corners of the periodic table and in certain element groups. The halogens, alkali metals, and alkaline earth metals are highly reactive. The most reactive element is fluorine, the first element in the halogen group.

Answer:

36°C is your answer

Explanation:

use the molar mass to find moles:

(10.00g Au)(1 mole Au/197 grams)= 0.05076 moles of gold

dH= n C dT

14.0 J = (.05076 moles) (25.41 J/mol* degree C) (dT)

dT=10.85 celsius rise in temp

if initially at 25 degrees celsius, a 10.85 celsius rise in temp will bring it to 35.85.

so round that answer and you should get 36 degrees as your answer

(hope this helped :) )

Considering the definition of calorimetry, the final temperature of the gold is 35.85 °C.

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

In other words, calorimetry is responsible for measuring the amount of heat generated or lost in certain physical or chemical processes.

The amount of heat that a body receives or transmits is determined by the following expression:

Q = c×m×ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case, you know:

Then:

14 J= 25.41 \(\frac{J}{molC}\)× 0.05076 moles× (Tfinal - 25 C)

Solving:

\(\frac{14 J}{ 25.41 \frac{J}{molC}x 0.05076 moles} =Tfinal - 25 C\)

\(Tfinal=\frac{14 J}{ 25.41 \frac{J}{molC}x 0.05076 moles} + 25 C\)

Tfinal= 35.85 °C

Finally, the final temperature of the gold is 35.85 °C.

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Answer:

Explanation:

The crabs cannot see the plankton they eat near the ocean floor. For the crabs to see the plankton, some color of visible light would need to reach the plankton so that it can be reflected into the crabs' eyes.

Crabs cannot see the plankton they eat near the ocean floor.

Plankton are a collection of tiny organisms that live at and beneath the surface of lakes, rivers, ponds, and oceans across the planet.

Some crabs have colour coding capabilities , but the crabs to see the Planktons the light must reach the plankton , reflect and reach to the eyes of crabs , but the light does not reach inside the ocean and so crabs see the plankton they eat near the ocean floor.

Hence crabs cannot see the plankton they eat near the ocean floor.

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Answer:

The volume of Component 1 is 36 cubic inches.

Explanation:

To calculate the volume of a composite solid, we need to determine the individual volumes of the different components and then add them together.

In this case, the composite solid consists of multiple components with the following dimensions:

Component 1:

Length: 4 inches

Width: 3 inches

Height: 3 inches

To find the volume of Component 1, we multiply the length, width, and height together:

Volume of Component 1 = Length x Width x Height = 4 in x 3 in x 3 in = 36 cubic inches

Therefore, the volume of Component 1 is 36 cubic inches.

Please provide the dimensions of the remaining components of the composite solid, and I will calculate the total volume by summing up the individual volumes.

There are approximately \(2.76 * 10^{24\) ammonia molecules in the given sample.

To calculate the number of ammonia molecules in the sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia \((NH_3)\) can be calculated by adding up the atomic masses of nitrogen (N) and hydrogen (H):

Molar mass of \(NH_3\) = (1 x atomic mass of N) + (3 x atomic mass of H)

              = (1 x 14.01 g/mol) + (3 x 1.01 g/mol)

              = 14.01 g/mol + 3.03 g/mol

              = 17.04 g/mol

Now, we can calculate the number of moles of ammonia in the sample using the formula:

Number of moles = Mass of the sample / Molar mass

Number of moles = 78.25 g / 17.04 g/mol

              ≈ 4.5865 mol (rounded to four decimal places)

Finally, we can use Avogadro's number, which represents the number of particles (atoms, molecules, etc.) in one mole of a substance. Avogadro's number is approximately \(6.022 * 10^{23\) particles/mol.

Number of ammonia molecules = Number of moles x Avogadro's number

Number of ammonia molecules ≈ 4.5865 mol x (\(6.022 * 10^{23\) molecules/mol)

                           ≈ \(2.76 * 10^{24\) molecules (rounded to two significant figures)

Therefore, the provided sample contains roughly \(2.76 * 10^{24\) ammonia molecules.

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The number of ammonia molecules in the sample is approximately 2.764 x \(10^{24}\) molecules.

To calculate the number of ammonia molecules in a given sample, we need to use Avogadro's number and the molar mass of ammonia.

The molar mass of ammonia (NH3) is calculated as follows:

Molar mass of N = 14.01 g/mol

Molar mass of H = 1.01 g/mol

Total molar mass of NH3 = 14.01 g/mol + (3 * 1.01 g/mol) = 17.03 g/mol

Now, we can calculate the number of moles of ammonia in the sample:

Number of moles = Mass of sample / Molar mass of NH3

Number of moles = 78.25 g / 17.03 g/mol = 4.594 moles

Next, we use Avogadro's number, which states that there are 6.022 x \(10^{23}\) molecules in one mole of a substance.

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

Number of molecules = 4.594 moles * 6.022 x \(10^{23}\) molecules/mol = 2.764 x \(10^{24}\) molecules

Therefore, there are approximately 2.764 x \(10^{24}\) ammonia molecules in the given sample of 78.25 g.

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Answer:

1.8 x 1024 atoms in a mole of water.

Explanation:

The Rf value of a compound is generally equal to the distance that is traveled by the compound divided by the distance traveled by the solvent front.

Thin layer chromatography (TLC) is a widely used separation technique for the quantitative and qualitative analysis. It uses a thin layer of a stationary phase that is coated on a glass, plastic, or also on aluminum plate. A liquid solvent that is called the mobile phase generally carries the sample and separates it as it moves across the plate. It offers the advantages of simplicity, sensitivity, and rapid analysis over other separation techniques.

The stronger a compound is bound to the adsorbent , the slower it moves on the TLC plate. Non-polar compounds move up the plate most rapidly because of the higher Rf value, whereas polar substances will travel up the TLC plate slowly or not at all due to the lower Rf value.

The Rf value is a ratio, and it represents the relative distance between the spot traveled compared to the distance it could have traveled if it was moved with the solvent front. An Rf of 0.55 means the spot moved 55% as far as the solvent front, or a little more than halfway.

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Answer: b because Potential energy is converted to kinetic energy as a stationary object begins to move.

Explanation:

Answer:

Law of conservation of mass states that

"Mass can never be created nor lost by any chemical reaction"

The peak for Po is positioned so far to the left of the  peak for Se because the 1s electrons in Po are closer to the the nucleus compared to the 1s electrons in Se.

In photoelectron spectroscopy, energy is imparted to an electron in an atom and its binding energy is determined by the energy of ultraviolet radiation required to ionize it.

The energy required to ionize an electron in an atom depends on its binding energy. We must note that the 1s electrons are closer to the nucleus.

The 1s electrons in Po are more closely held to the nucleus than the 1s electrons in Se thus there is greater Coulombic attraction between the 1s electrons in Po and the nucleus compared to the 1s electrons in Se. Hence, the peak for Po is positioned so far to the left of the  peak for Se.

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C6H12O6(s) + O2(g) -----> CO2(g) + H2O(g)

\(\\ \tt\rightarrowtail C_6H_{12}O_6+6O_2\longrightarrow 6CO_2+6H_2O\)

On both sides

Answer:

Option 1

Explanation: