each week capechem, a manufacturer of fine chemicals, uses up of compound and of compound in a reaction with only one product, compound . what is the maximum theoretical mass of compound that capechem could ship each week? round your answer to the nearest kilogram. suppose on average the percent yield of in capechem's reactors is . calculate the average amount of compound that capechem actually ships each week. round your answer to the nearest kilogram.

Answer:

the empirical formula is \(H_2NO_2\)

Explanation:

The empirical formula is

The following information is given

It contains 29.17 mass percentage of N

4.20 mass percentage of H

And, 66.63 mass percentage of 0

Now based on the above information, the empirical formula is \(H_2NO_2\)

hence, the same is to be considered and relevant too

Considering the definition of empirical formula,  the empirical formula is H₂N₁O₂= H₂NO₂

The empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers small as possible.

Hydroxylamine nitrate contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass % O.

Assuming a 100 grams sample, the percentages match the grams in the sample. So you have 29.17 grams of N, 4.20 grams of H and 66.63 grams of O.

Then it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:

The empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:

Therefore the H: N: O mole ratio is 2: 1: 2

Finally, the empirical formula is H₂N₁O₂= H₂NO₂

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According to the concept of stoichiometry and limiting reactant , the limiting reactant for the given reaction is aluminium as without it formation of product is not possible.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is an important concept while balancing chemical equations.

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The moles would be 12 moles, 4 moles and 11.34 moles

When hydrogen gas (H2) reacts with oxygen gas (O2) to produce water (H2O), the balanced chemical equation is:

2H2 + O2 -> 2H2O

So,

For every 6 moles of H2, 12 moles of H2O will be produced

For every 2 moles of H2, 4 moles of H2O will be produced

For every 5.67 moles of H2, 11.34 moles of H2O will be produced.

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Answer:

196J, but C. at 200 J comes close.

Explanation:

Potential energy due to gravity is given by:

PEgrav = mass • g • height

where g is the acceleration due to gravity.  We'll use 9.8 N/kg (on Earth).

PEgrav = mass • g • height

PEgrav = (2 kg) • (9.8 N/kg) • (10 m)

PEgrav = 196 N*m

1 N*m = 1 Joule

PEgrav = 196 J

C. at 200 J comes close.  The solution probably used a value of g equal to 10 N/kg)

Answer:

20 J

Explanation:

Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

The mechanism for the generation of the electrophile used for bromination in electrophilic aromatic substitution involves the formation of a complex between a Lewis acid, such as FeBr3, and the bromine molecule (Br_2).

1. Initially, the Lewis acid, FeBr_3, accepts a lone pair of electrons from the bromine molecule, Br_2, forming a Lewis acid-base adduct. This process is called complexation.

2. The formation of this complex activates the bromine molecule, making it more electrophilic. The bromine atom becomes positively charged due to the electron deficiency caused by the coordination with FeBr_3.

3. In the next step, the aromatic ring (e.g., benzene) approaches the activated bromine molecule, and one of the pi electrons from the aromatic ring attacks the electrophilic bromine atom.

4. This attack leads to the formation of a new bond between the bromine atom and one of the carbon atoms in the aromatic ring, while simultaneously breaking the bond between the attacked carbon atom and its original bonded atom.

5. The resulting intermediate is a carbocation, which is stabilized by resonance with the adjacent aromatic ring.

Overall, the process involves the activation of the bromine molecule by a Lewis acid, followed by an attack of the aromatic ring, leading to the formation of a carbocation intermediate.

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The wave property that should be tested in this experiment is absorption, which refers to the extent to which a material can absorb sound waves. The correct answer is option a.

By testing how different materials interact with sound waves from the straw horn, the student can gain insight into the properties of those materials and their ability to absorb sound.

A. Wave property: absorption

Method: playing the straw horn in a room with hard surfaces and a room with soft surfaces

To test this property, the student should play the straw horn in a room with hard surfaces, such as walls and floors made of concrete or tile, and a room with soft surfaces, such as walls and floors made of carpet or drapes.

By comparing the sound produced in each room, the student can observe how the sound waves interact with different materials and how effectively each material absorbs the sound.

This method allows the student to investigate how different materials absorb sound waves and how this affects the sound produced by the straw horn. This information can be valuable in understanding how sound travels in different environments and how to optimize sound quality in different settings.

The correct answer is option a.

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Bohr's model lacked orbitals again for electrons or the electron cloud, contrary to Dalton's theory, which was founded on the idea that every element is made up of its own distinct variety of an indivisible atom.

According to the theory, an atom contains a small, dense, positive charge centre known as the nucleus, where practically every bit of mass was concentrated. Light, particles with negative charges called electrons then orbit far from the nucleus in a manner similar to how planets circle the Sun.

Dalton proposed his atomic hypothesis based on all of his observations. It's frequently called the billiards ball model. Due to the lack of understanding of the atomic electrons and the nucleus at the time, he described an atom as a ball-like structure.

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Answer:

B.)Schrodinger's model

Explanation:

Answer:

2.627775588 degrees Celsius (with 2 sig figs)

Explanation:

We need to use our equation q=m×s×(change in temp) and solve for our change in temperature. So divide both sides by m×s and you'll get:

Change in temp=q/(m×s) Where q= J of heat m=mass and s= specific heat

So now we just plug our numbers in:

56J/(23.6g×0.903J/g°C)= 2.627775588 and since 56 only has 2 sig figs, we round the final answer to 2.6°C

Answer:

high

Explanation:

Answer:(A)

Explanation:

The standard electrode potential (E˚) for a fuel cell based on this reaction is 2.183 V.

To find the standard electrode potential (E˚) for a fuel cell based on this reaction, we need to first identify the two half-reactions that make up the overall reaction.

The first half-reaction involves the oxidation of propane (C3H8) to form carbon dioxide (CO2):

C3H8(g) → 3CO2(g) + 10H+ + 10e-

The second half-reaction involves the reduction of oxygen (O2) to form water (H2O):

5O2(g) + 10H+ + 10e- → 10H2O(l)

To find the overall cell reaction, we can add these two half-reactions and cancel out the electrons:

C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)

The standard cell potential (E˚cell) can be calculated using the standard Gibbs free energy change (∆G˚) for the reaction:

∆G˚ = -nFE˚cell

where n is the number of electrons transferred in the balanced half-reactions, F is the Faraday constant (96485 C/mol), and E˚cell is the standard cell potential.

In this case, n = 10 (because 10 electrons are transferred in the overall reaction), so we can rearrange the equation to solve for E˚cell:

E˚cell = -∆G˚ / (nF)

Plugging in the values, we get:

E˚cell = -(-2.108 × 103 kJ•mol-1) / (10 × 96485 C•mol-1)

E˚cell = 2.183 V

Therefore, the standard electrode potential (E˚) for a fuel cell based on this reaction is 2.183 V.

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Option C is correct. reduce reactant concentrations. shorten the time the reaction is allowed to proceed.

The reaction rate normally increases as the temperature rises. With rising temperature, the average kinetic energy of the reactant molecules rises. The minimum energy needed for an effective collision will therefore be present in a higher percentage of molecules. With rising temperatures, molecules' kinetic energy rises. The possibility of a reaction rises as molecules move more quickly and collide more frequently. This speeds up the reaction. The average kinetic energy of the individual particles of the system increases with increasing temperature. Particles move faster and collide more often per unit time as the average kinetic energy increases, and they have more energy when they collide. Both of these factors speed up the reaction.

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The pH of the final solution will be less than 7, but closer to 7 if the initial concentration of sodium acetate is high and the concentration of HCl is low.

The pH of a solution after a reaction with a strong acid like HCl will depend on the concentration of the acid and the concentration of the acetate ions (CH3COO-) in the sodium acetate solution. Sodium acetate (CH3COONa) is a weak base, and when it reacts with HCl, it forms acetic acid (CH3COOH) and sodium chloride (NaCl). The equation for this reaction is: CH3COONa + HCl → CH3COOH + NaClThe pH of a solution is a measure of the concentration of hydronium ions (H3O+) in the solution, so the pH of the solution after the reaction will depend on the concentration of H3O+ ions and the concentration of acetate ions. If the reaction is done in aqueous solution, the acetic acid formed will dissociate to form H3O+ and acetate ions. The acetate ions will neutralize some of the H3O+ ions, thus decreasing the overall acidity of the solution. The pH of the final solution will be less than 7, but closer to 7 if the initial concentration of sodium acetate is high and the concentration of HCl is low. It's important to note that without knowing the initial concentration of sodium acetate and the volume of the solutions it is not possible to determine the final pH.

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The decomposition of hydrogen peroxide into water and oxygen is a slow process, but it can be catalyzed by iodide ion. The iodide ion acts as a catalyst by lowering the activation energy required for the reaction to occur.

During the reaction, the iodide ion is oxidized to form iodine, which then reacts with hydrogen peroxide to form water and oxygen. The iodine can then react with more hydrogen peroxide to continue the reaction.

The concentration of the catalyst, iodide ion, affects the rate of the reaction. An increase in the concentration of the iodide ion will increase the rate of the reaction, as there will be more catalyst available to facilitate the reaction. Conversely, a decrease in the concentration of the iodide ion will slow down the rate of the reaction.

However, once the reaction has finished, the concentration of the catalyst will remain the same. This is because the catalyst is not consumed in the reaction and can be used again in subsequent reactions. Therefore, the concentration of the catalyst will remain constant as long as there is enough iodide ion present to catalyze the reaction.

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1. A proper progression utilizing conversion factors would be km to feet to inches.

2. Conversion factors allow you to effectively cross out the appropriate units along each step of the problem.

3. 246,000 mm is how many Km is 0246.

4. There are 2 electrons in the s orbital, and 3 in the p orbital.

A conversion factor is a number used to convert one set of units to another set by multiplication or division. If the conversion is required, the values ​​should be equal using the appropriate conversion factor. To find the electron configuration of an atom, we first need to know how many electrons the atom has. Aluminum has an atomic number of 13, so it has 13 electrons.

The last shell after the electron configuration is called the valence shell. The total number of electrons in the valence shell is called valence electrons. The electron configuration of the aluminum shows that there are three electrons in the last shell of aluminum. Therefore the valence electron of aluminum is 3 The outermost valence shell of aluminum has three electrons. Al now has an electronic configuration similar to the noble gas neon so it can donate three electrons to form a cation.

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The elements Na, Li, K, Rb, and Cs in order of increasing ionization energy is Li, Na, K, Rb, Cs. The correct answer is option D.

What is ionization energy?

The ionization energy is the minimum energy which is required to remove a valence electron from an isolated gaseous atom, molecule or a positive ion. This measures the ability of an atom to form an ion by losing an electron to take part in a chemical reaction.

As we move down the group, the ionization energy decreases due to the increase in the atomic size of an element. So, the electrons are far from the nucleus and loosely bound to the nucleus.

Therefore, it is easy to remove an electron from the elements which are found lower in the group. So, the order of increasing ionization energy is Li, Na, K, Rb, Cs, the correct answer is option D.

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E) None of the above is the correct answer. The voltage produced by the colorimeter is logarithmically related to the absorbance of the sample and proportional to the light intensity.

The study of measuring the concentration of a coloured substance in a solution is known as colorimetry. A colorimeter is a tool that is sensitive to light. It is used to gauge the amount of light that passes through a liquid sample both transmittance and absorption. During colour measurement, the fluctuation in electromagnetic radiation's intensity in the visible wavelength area of the spectrum as a result of transmission or reflection by an object or solution is counted. Such a test can help determine the concentration of chemicals since the amount and colour of light that is absorbed or transmitted relies on the properties of the solution, including the number of particles in it.

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Answer:

The specific heat of the steel can be calculated using the formula:

Q = mcΔT

where Q is the heat transferred, m is the mass of the steel, c is the specific heat of the steel, and ΔT is the change in temperature.

First, calculate the heat transferred from the steel to the water:

Qsteel = mcΔT = (525 g)(c)(100 °C - 55 °C) = 27675c J

Next, calculate the heat transferred from the water to the steel:

Qwater = mcΔT = (375 g)(4.184 J/g. °C)(55 °C - 25 °C) = 50202 J

Since the heat lost by the steel is equal to the heat gained by the water:

Qsteel = Qwater

27675c J = 50202 J

c = 1.81 J/g. °C

Therefore, the specific heat of the steel is 1.81 J/g. °C.

Explanation:

Answer:

digital camera

Explanation:

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question we have

\(density = \frac{3}{5} \\ \)

We have the final answer as

Hope this helps you

Once I told a chemistry joke

I got no reaction.

What do you do with a sick chemistry teacher?

If you can't helium, and can't curium, you might as well barium.

I don't trust atoms,

I heard they make up everything

Hope I helped make ur day. :)

Answer:

. A divalent cation is an cation with valence of 2+. This type of ion may form two chemical bonds with anions.

Explanation:

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Extraction procedure is the method of separating substances that are useful or needed from a complex mixture.

The process can be done using various methods such as distillation, chromatography, and solvent extraction.The extraction procedure is used to obtain a concentrated extract from a complex mixture.

The following are the steps involved in the extraction procedure:

1. Collection of the material - This is the first step in the extraction process. It involves the collection of the sample that contains the desired compound.

2. Grinding the material - This step is essential for the extraction process since it increases the surface area of the sample, which makes it easier for the solvent to penetrate.

3. Mixing the sample with the solvent - This is done to extract the compound of interest. The solvent dissolves the compound, making it easier to extract.

4. Separation of the extract - After the compound has been dissolved in the solvent, the next step is to separate the extract from the mixture.

5. Concentration of the extract - This is the last step of the extraction procedure. The purpose of this step is to obtain a concentrated extract. The extract is concentrated to increase the concentration of the compound of interest.

The reason for following these steps is to make sure that the compound of interest is extracted efficiently. Each step has a particular purpose that contributes to the efficiency of the process.

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Answer: 14.11 g

Explanation:

Ideal gas law

We will use the ideal gas law for this problem:

\(PV=nRT\)

We know V, which is 7.10

P is 1.11 atm

and T is 31.0 C, or 305 K

R will be 0.08206 L*atm/mol*k, since we are dealing with atmospheres for our pressure.

Now, we just need to solve for n, moles

\(1.11*7.10=n*0.08206*305\\n=0.321\)

We have 0.321 moles of CO2

Convert to g

The molar mass of CO2 is 44.01 g/mol, so we multiply 44.01 g/mol by 0.321 moles to cancel out the moles and get grams.

\(\frac{44.01g}{mol} *0.321mol=14.11 g\)

The practices that add to scientific knowledge are all those based on the use of the scientific method.

The scientific method refers to all procedures used in science to obtain empirical evidence which is verified by testing a hypothesis that can be confirmed or rejected depending on the experimental and or observational outcomes.

On the other hand, scientific knowledge refers to all body of knowledge in a given research field obtained by using the scientific method, which involves raising the right questions during the generation of the most plausible explanations to understand a phenomenon of the real world.

Therefore, with this data, we can see that the scientific method is used to test the hypothesis, which is a fundamental step during the obtention of empirical evidence based on testing explanations by experiments or observational procedures.

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