common element in all the organic compound another than hydrogen is ​

Hydroxide ions (oh-) are found in 24.39 ml are 1.47 x 10^22 OH- ions.

The number of individual hydroxide ions (OH-) in 24.39 mL depends on the concentration of the solution. If we assume that the solution is 1.00 M NaOH, then we can use the following formula to calculate the number of moles of NaOH:

moles of NaOH = Molarity x Volume (in liters)

moles of NaOH = 1.00 M x 0.02439 L = 0.02439 moles

Since NaOH is a strong base that dissociates completely in water, each mole of NaOH produces one mole of OH- ions. Therefore, the number of individual hydroxide ions in 24.39 mL of 1.00 M NaOH is:

Number of OH- ions = moles of NaOH x Avogadro's number

number of OH- ions = 0.02439 mol x 6.022 x 10^23/mol = 1.47 x 10^22 OH- ions.

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Answer: D: both teams will remain in place.

Explanation: if both teams have the same amount of force, they will cancel each other out and stay in place.

Answer: From top to bottom, 1 3 4 5 6

Explanation: The empirical formula is the most reduced whole number ratio of elements. N2O4 is the only compound that can be further reduced, making the empirical formula NO2, and thus is different from the molecular formula.

\(C_3H_6\)  has a double bond in its carbon skeleton. This is a true statement.

Carbon skeleton refers to the chain of carbon atoms that make up an organic molecule. The presence or absence of double bonds in the carbon skeleton affects the properties of the molecule and how it interacts with other molecules. In \(C_3H_6\), there are three carbon atoms arranged in a linear chain, with each carbon atom forming single covalent bonds with two hydrogen atoms. The remaining valence electrons on each carbon atom form a double bond between the first and second carbon atoms.

This double bond is responsible for the unsaturated nature of the molecule. \(C_3H_6\)is an example of a simple alkene, also known as propene. Its carbon skeleton and double bond make it a versatile molecule that can be used in various applications, including the production of plastics, rubber, and other materials.

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Answer:

A. N2(g) + 3H2(g) Right arrow. 2NH3(g)

B.C(s) + 2H2(g) Right arrow. CH4(g)

Explanation:

Answer:

a and b

Explanation:

second question

miultiplu second eq by 2

Based on the information above, option (c) CH3N=NCH3, which contains a conjugated system, is more likely to have the largest molar absorptivity (€) among the given options.

The molar absorptivity (€) is a measure of how strongly a compound absorbs light at a particular wavelength. It is influenced by various factors, including the molecular structure and functional groups present in the compound. In general, compounds with extended conjugation and aromatic systems tend to have higher molar absorptivities. Based on this information, let's evaluate the given options:

(a) C6H13CH=CH2:

This compound is a linear alkene and does not possess an extended conjugated system or aromaticity. Therefore, it is unlikely to have a large molar absorptivity.

(b) CH3(C=O)H:

This compound is an aldehyde. While it contains a carbonyl group, it does not have an extended conjugated system or aromaticity. Hence, its molar absorptivity is expected to be relatively low.

(c) CH3N=NCH3:

This compound is dimethyl diazene. It contains a diazenyl functional group, which exhibits conjugation between the nitrogen atoms. The presence of this conjugated system suggests that it may have a higher molar absorptivity compared to the previous options.

(d) C2H5ONO2:

This compound is ethyl nitrite. It does not possess an extended conjugated system or aromaticity, similar to option (a) and (b). Therefore, its molar absorptivity is expected to be relatively low.

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Answer:

Decomposition reaction

Explanation:

When a single reactant is decomposed into two or more products that reaction is called decomposition reaction.

Option B is correct

Calcium bromide give a compound consisting of two bromine atoms and one calcium atom.

What is atom?

An atom is a particle of the  matter that uniquely defined as a chemical element. An atom is the  consists of a central nucleus that is the  surrounded by one or more negatively charged of  electrons. The nucleus is the  positively charged and the  contains one or more of  relatively heavy particles known as protons and neutrons. Sol-Atomic radius of an atom is defined as the total distance from the nucleus to the outermost shell of the atom. Sodium and magnesium are located in the same era, with magnesium to the right of sodium. They both have the same number of primary shells.

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Answer:

in the fermentati0n process glucose [C6H12O6]c of food is converted into ethanol [ethyl alchol, C2H5OH] and Co2 by yeast cell .In this process yeast cell produce in vertase and zymase enzyme which convert glucose into alcohol .

i.e. c6H12O6========> C2H5OH+Co2+energy

The balanced chemical equation for reaction equation for the bromination of stilbene using pyridinium the limiting reagent in the following procedure is given as:

2 C₁₄H₁₂ + 3 Br₂ + 2 C₅H₅NHBr → 2 C₁₄H₁₁Br₂ + 2 C₅H₅N + 2 HBr

The bromination of stilbene using pyridinium bromide as the limiting reagent can be represented by the following balanced reaction equation:

2 C₁₄H₁₂ + 3 Br₂ + 2 C₅H₅NHBr → 2 C₁₄H₁₁Br₂ + 2 C₅H₅N + 2 HBr

In this reaction, stilbene (C₁₄H₁₂) reacts with bromine (Br₂) in the presence of pyridinium bromide (C₅H₅NHBr) as a catalyst. The products formed are 1,2-dibromo-1,2-diphenylethane (C₁₄H₁₁Br₂), pyridine (C₅H₅N), and hydrogen bromide (HBr).

The given question is incomplete and the complete question is given as,

Write a balanced reaction equation for the bromination of stilbene using pyridinium when the limiting reagent in the following procedure is given.

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The given structure is of formaldehyde an organic compound and it is acidic in nature.

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Answer:

because electron is a negetively charge particle that orbits the outer part of atom and despite being small it is a strong proton.

Explanation:

Heat is the result of the movement of kinetic energy within a material or an item, or by a source of energy to a material or an object.

Energy that is transported from a region of greater temperature to one of lower temperature is known as heat.Joule is the SI unit (J).Heat is another factor that causes the phase transition.

heat is the energy that moves through one body to the other when temperatures are different.Heat passes from the hotter to the colder body when two bodies with differing temperatures are brought together.

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Answer:

Solids have a set shape and can't flow since their particles can only vibrate in a specific direction. They are unable to travel from one location to another.

Explanation:

According to the forces of attraction,particles  are in a fixed place and cannot move. They move around a fixed position in solids.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

Thus, particles  are in a fixed place and cannot move. They move around a fixed position in solids.

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The answer is \(\underline{12.954}\end{aligned}$$\)

\(\begin{aligned}&\mathrm{pH}=\underline{1.046} \\&{\left[\mathrm{OH}^{-}\right]=\underline{1.11 \times 10^{-13} \mathrm{M}}} \\&\mathrm{pOH}=\underline{12.954}\end{aligned}\)

Given:

\(\left[\mathrm{H}^{+}\right]=0.090 \mathrm{M}=9 \times 10^{-2} \mathrm{M} ; \mathrm{T}\\=25^{\circ} \mathrm{C}$$\mathrm{As}, \mathrm{pH}=-\log \left[\mathrm{H}^{+}\right]$\Rightarrow \mathbf{p H}=-\log \left(9 \times 10^{-2}\right)=\underline{1.046}$$\)

The equation for the self-ionization constant of water is

\($$\mathrm{Kw}=\left[\mathrm{H}^{+}\right]\left[\mathrm{OH}^{-}\right]$$and, $\mathrm{pKw}=\mathrm{pH}+\mathrm{pOH}$\)

Since at room temperature,

\($25^{\circ} \mathrm{C}: \mathrm{Kw}=1.0 \times 10^{-14}, \mathrm{pKw}=14$\)

\(\therefore \mathrm{Kw}=\left[\mathrm{H}^{+}\right]\left[\mathrm{OH}^{-}\right]=1.0 \times 10^{-14}$$\\\Rightarrow\left[\mathrm{OH}^{-}\right]=\left(1.0 \times 10^{-14}\right) \div\left[\mathrm{H}^{+}\right]\\=\left(1.0 \times 10^{-14}\right) \div\left[9 \times 10^{-2}\right]\\=0.111 \times 10^{-12}=1.11$$\times 10^{-13} \mathrm{M}$\)

And

\($$\begin{aligned}&\mathrm{pH}+\mathrm{pOH}=\mathrm{pKw}=14 \\&\Rightarrow \mathrm{pOH}=14-\mathrm{pH}=14-1.046=\underline{12.954}\end{aligned}$$\)

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The electrode with the higher reduction potential serves as the cathode, co3 / co2 would be used as the anode in this galvanic cell . A galvanic cell is an electrochemical cell that generates electricity by harnessing the redox reactions that occur between two electrodes.

In order to construct a galvanic cell with an overall initial cell voltage of 2.73 V using co3 / co2 as one of the electrodes, the student must choose a species for the other electrode that has a higher reduction potential than co3 / co2. This is because the electrode with the higher reduction potential will serve as the cathode and will gain electrons during the redox reaction, while the other electrode will serve as the anode and will lose electrons.

To determine which species to choose for the other electrode, the student should consult a table of standard reduction potentials. After consulting the table, the student may choose to use Hg2+ / Hg as the other electrode, as it has a reduction potential of 0.79 V, which is higher than the reduction potential of co3 / co2.

Finally, since the electrode with the higher reduction potential serves as the cathode, co3 / co2 would be used as the anode in this galvanic cell.

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Answer:

NaH one atom of sodium react with one hydrogen to form sodium hydride

Explanation:

Answer:

Selenium

Explanation:

selenium has 4 energy levels (think a 4 story building) while oxygen only has 2 (think 2 story building). which one is taller?

i. The mass of air inside the tank is calculated using the ideal gas law: m₁ = (P₁V₁) / (RT₁), and m₂ = (P₂V₂) / (RT₂).

ii. The final pressure inside the tank after cooling is determined using Boyle's Law: P₁V₁ = P₂V₂.

iii. Repeat the calculations for heating from 25°C to 175°C using the given temperatures and equations to determine mass and final pressure, then compare the results.

a) Charles' Law states that at constant pressure, the volume of a gas is directly proportional to its temperature, expressed mathematically as V₁ / T₁ = V₂ / T₂. Boyle's Law states that at constant temperature, the pressure of a gas is inversely proportional to its volume, expressed as P₁V₁ = P₂V₂.

b)

i. To determine the mass of air inside the tank, we need to use the ideal gas law equation:

PV = mRT, where P is pressure, V is volume, m is mass, R is the gas constant, and T is temperature.

Step 1: Convert temperatures to Kelvin:

T₁ = 110°C + 273.15 = 383.15 K

T₂ = 55°C + 273.15 = 328.15 K

Step 2: Calculate the initial mass using the ideal gas law:

m₁ = (P₁V₁) / (RT₁)

Step 3: Calculate the final mass using the ideal gas law:

m₂ = (P₂V₂) / (RT₂)

ii. To determine the final pressure inside the tank after cooling, we can use Boyle's Law:

P₁V₁ = P₂V₂

c)

To calculate the mass and final pressure for heating from 25°C to 175°C, we follow the same steps as in part b, using the given temperatures and applying the ideal gas law and Boyle's Law.

Step 1: Convert temperatures to Kelvin:

T₁ = 25°C + 273.15 = 298.15 K

T₂ = 175°C + 273.15 = 448.15 K

Step 2: Calculate the mass using the ideal gas law:

m₁ = (P₁V₁) / (RT₁)

m₂ = (P₂V₂) / (RT₂)

Step 3: Calculate the final pressure using Boyle's Law:

P₁V₁ = P₂V₂

Finally, compare the obtained results for both cases to analyze the effect of cooling and heating on the mass and final pressure of the air inside the tank.

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Answer: homogeneous mixture

Explanation:

One way chemicals can help the environment is by using synthetic pesticides and fertilizers to increase crop yields while minimizing water usage. This helps to reduce the land area needed for farming, which in turn reduces deforestation. It also decreases the need to clear additional land for cultivation, which reduces greenhouse gas emissions and helps to prevent soil erosion. Additionally, some chemicals can be used to clean up contaminated soil and water sources, such as in the case of oil spills or industrial pollution.

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The number is 6.022 x 10^23 atoms/mol.

To solve this problem, we can use the ideal gas law, which states that PV=nRT, where P is the pressure in atmospheres.

V is the volume in liters, n is the number of moles, R is the gas constant (0.0821 L atm/mol K), and T is the temperature in Kelvin. First, we need to convert the temperature from Celsius to Kelvin by adding 273.15, giving us T=303.15 K.
Next, we can plug in the values we have,P(10.00 L) = (0.089 mol)(0.0821 L atm/mol K)(303.15 K) Solving for P, we get P=2.12 atm. Therefore, the gas in the container exerts a pressure of 2.12 atm.

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Answer:

The oxidation number of chlorine can be -1, 0, +1, +3, +4, +5, or +7, depending on the substance containing the chlorine. The most common oxidation numbers are -1 (as in HCl and NaCl ) and 0 (as in Cl2 )

Answer:

Depending on the chemical containing chlorine, the oxidation number can be -1, 0, +1, +3, +4, +5, or +7. The oxidation values -1 (as in HCl and NaCl) and 0 are the most prevalent (as in Cl2 )

Explanation:

Answer:

The answer is

Explanation:

To find the density of the sphere we use the formula

To find the density in g/cm³ first convert the mass into grams and the volume into cm³

For the mass we have

155 lb = 70306.82 g

For the volume

4.2 ft³ = 118930.76 cm³

Substitute the values into the above formula

That's

We have the final answer as

Hope this helps you

In the procedure, step 3(a) states that washing the precipitate is necessary. The reason for washing the precipitate with hot water is that it removes any remaining impurities and unreacted chemicals.

Washing the precipitate helps to purify it and remove unwanted particles. Hot water is used because it can dissolve impurities and wash them away more effectively than cold water. Additionally, the hot water can increase the rate of precipitation, making the process faster. If the precipitate is not washed properly, it can have a negative effect on the final product. The washing process ensures that the precipitate is pure and ready for further use. Overall, washing the precipitate is a crucial step in the procedure to ensure the purity and quality of the final product.

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There is no direct conversion from moles to grams. You need to know the molar mass of H3PO4 to calculate the number of grams. The molar mass of H3PO4 is 97.99 g/mol.

What is Molar mass?

Molar mass is the mass of one mole of a given substance, measured in grams per mole (g/mol). It is a unit of measurement used to determine the amount of a substance in a sample. The molar mass of a substance is related to its molecular weight, which is the sum of the atomic weights of all atoms in the molecule.

Therefore, There is no direct conversion from moles to grams.

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Standardization is the process of titrating a solution that is prepared from: a carefully measured solid mass to accurately find the concentration of titrant.

Titration is also known as volumetric analysis (titrimetry) and it can be defined as a chemical process in which a solution of known concentration (titrant) is carefully and slowly added to another solution of unknown concentration, so as to determine the concentration or quantity of the analyte.

Similarly, a process referred to as standardization is used to titrate a solution that is prepared from a carefully measured solid mass to accurately find the concentration of titrant.

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The  total moles of ions are released when the following sample dissolves completely in water is 2.06 mol K₂SO₄ is 6.18  mols.

the dissociation is given as belows :

K₂SO₄   ---->  2K⁺  +  SO₄²⁻

the one mole of K₂SO₄   when completely dissociates will produce the two moles of the K⁺  and the 1 mole of the SO₄²⁻.

Therefore , the total number of mole in K₂SO₄   when dissociates is give as follows :

total number of moles = 2 + 1

                                     = 3 mol

the mole of K₂SO₄   is = 2.06 mol

therefore , the total moles of ion = 2.06 ( 3)

                                                       = 6.18 mols

Thus, the total number of moles of the ion in the K₂SO₄    is 6.18 mol.

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