what is the highly reactive electrophilic reagent for methyl benzoate that reacts with nitric acid to form methyl m-nitrobenzoate.

0.135mole is the number of mole of oxygen that are needed to producce 30 g of ferric oxide. The same amount of gases under identical circumstances ought to have the same amount of molecules.

In chemistry, a mole, usually spelt mol, is a common scientific measurement unit for significant amounts of extremely small objects like atoms, molecules, and other predetermined particles. The same amount of gases under identical circumstances ought to have the same amount of molecules, according to Avogadro's theory, which was successful in calculating atomic therefore molecular weights and gave rise to the idea of the mole.

4 Fe ( s )  + 3 O\(_2\) ( g )  → 2 Fe\(_2\) O\(_3\) ( s)

mole of Fe\(_2\) O\(_3\)  =30 /159.69

                             =0.18mole

According to stoichiometry

mole of oxygen = 0.18×3/4=0.135moles

To know more about mole, here:

brainly.com/question/30892840

#SPJ1

Answer:

0.374 moles of carbon monoxide

Explanation:

Let's consider the following balanced thermochemical equation.

2 CO + O₂ ⇒ 2 CO₂    ΔH = -787 kJ

According to this balanced thermochemical equation, 787 kiloJoules of heat are released (this is the meaning of the minus sign) when 2 moles of carbon monoxide react. The moles of carbon monoxide that must react to produce 147 kJ of energy are:

(-147 kJ) × 2 mol CO/(-787 kJ) = 0.374 mol CO

The final pressure would be 7905.6 torr when the volume is changed to 1.03 L.

Boyle's law states that

At a steady temperature, the item of weight and volume of a gas is steady.

which implies

P1V1 = P2V2

where

P1 = starting weight

V1 = starting volume

P2 = ultimate weight

V2 = ultimate  volume

Substituting the given values into equation (1), we get:

P1 = 4.62 atm

V1 = 2.33 L

V2 = 1.03 L

Rearranging the equation (1)

P2 = P1V1/V2 = (4.62 atm x 2.33 L)/1.03 L = 10.41 atm

To convert atm to torr, ready to utilize the conversion factor:

As we know that 1 atm = 760 torr

so that, the ultimate weight in torr would be:

P2 = 10.41 atm x 760 torr/atm = 7905.6 torr

P2 = 7905.6 torr

Hence, the ultimate weight would be 7905.6 torr when the volume is changed to 1.03 L. 

to know more about  gas pressure problems refer to this :

https://brainly.in/question/49500660

#SPJ4

Answer: 1. \(NH_3\) increases.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

For the given equation:

\(N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)+energy\)

If the concentration of \(N_2\) is increased , according to the Le-Chatlier's principle, the reaction has to shift to right or forward direction. In order to do that  the concentration of products has to increase.

Thus the concentration of \(NH_3\) increases.

The ion that has 26 protons, 28 neutrons, and 24 electrons is Iron (Fe) (option c).

An element can be determined by the number of protons in the nucleus of its atom. The number of protons present in an atom is referred to as the atomic number of the element.

This means that the number of protons in an atom is unique to a specific element.

Iron (Fe) has 26 protons in the nucleus of its atom.

Therefore, an ion with 26 protons is an ion of the element iron (Fe).

Magnesium (Mg) has 12 protons, Chromium (Cr) has 24 protons, Xenon (Xe) has 54 protons and Nickel (Ni) has 28 protons.

Thus, an ion which has 26 protons, 28 neutrons, and 24 electrons  is Fe (option c)

To learn more about proton:

https://brainly.com/question/1481324

#SPJ11

3 half-lives have occured

Given

Half-life Radon-222 = 3.8 days

12.5% of Rn-222 remains

Required

Half-lives  occurred

Solution

General formulas used in decay:  

\(\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}\)

T = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

12.5% of Rn-222 remains ⇒ Nt/No = 0.125

Input the value :

\(\tt 0.125=\dfrac{1}{2}^{t/3.8}\\\\\dfrac{1}{2}^3=\dfrac{1}{2}^{t/3.8}\\\\3=t/3.8\\\\t=11.4\rightarrow 3~half-lives\)

Answer:

it is an endothermic reaction

Explanation:

This is because there is a rise in temperature from 20 to 46. this means that the reaction takes in heat from the suuroundings

Answer:

0.13M

Explanation:

The formula of molarity is moles of solute÷litres of solution hence:

M= 0.20÷1.5

M= 0.13

Based on the given information, we reject the null hypothesis H₀ at α=0.01.

In hypothesis testing, the null hypothesis (H₀) represents the assumption or claim to be tested, while the alternate hypothesis (H₁) is the alternative claim. In this case, the null hypothesis is H₀: p=0.3, and the alternate hypothesis is H₁: p<0.3.

To perform the hypothesis test, we need to compute the test statistic (z) and the p-value. The test statistic is calculated by subtracting the null value from the sample proportion (p), dividing it by the standard error of the proportion hypothesis. The formula for the test statistic is:

z = (p - p₀) /  hypothesis

However, the given question does not provide the values of p or SEp, so it is not possible to calculate the test statistic (z) accurately.

The p-value represents the probability of observing a test statistic as extreme or more extreme than the one obtained, assuming the null hypothesis is true. By comparing the p-value to a significance level (α), we can determine whether to reject the null hypothesis. Unfortunately, the question does not provide the p-value, making it impossible to make a conclusive decision regarding the rejection or acceptance of the null hypothesis.

In summary, without the necessary values to compute the test statistic and the p-value, it is not possible to provide a precise answer to the question.

Learn more about null hypothesis

brainly.com/question/30821298

#SPJ11

Answer:

AgCl

Explanation:

Got correct on E2020

Answer:

B: AgCl

Source: trust me bro

C₂H₆, compound has a C-H bond with the lowest bond dissociation energy, hence option A is correct.

Toluene has the lowest bond dissociation energy because it undergoes hyper conjugation with the C-H protons.

The energy needed to break a bond and create two atomic or molecular fragments, each containing one of the original shared pair of electrons, is known as the bond dissociation energy.

As a result, an extremely stable bond has a high bond dissociation energy, meaning additional energy is required to break the binding.

Learn more about bond dissociation energy, here:

https://brainly.com/question/30762022

#SPJ1

0.3 moles of N2 will produce (2/1) × 0.3 = 0.6 moles of NH3.Using molar mass, the mass of NH3 is:molar mass of NH3 = 17 g/molMass of NH3 = Number of moles of NH3 × Molar mass of NH3= 0.6 × 17= 10.2 gTherefore, the mass of NH3 formed is 10.2 g.Answer: d) 10.2 g

The balanced chemical equation is:N2 + 3H2 → 2NH3Molar mass of N2 = 14 + 14 = 28 g/molMolar mass of H2 = 1 + 1 = 2 g/molMolar mass of NH3 = 14 + 3 = 17 g/molThe reaction of 0.3 moles of N2 with 0.6 moles of H2 to form NH3 is given below:N2 + 3H2 → 2NH3First we have to see the limiting reagent:The molar ratio of N2 and H2 is 1:3If 0.3 moles of N2 is used, then the number of moles of H2 required will be:3 × 0.3 = 0.9 molSince we have 0.6 moles of H2, N2 is the limiting reagent.Now, we will use the limiting reagent to calculate the number of moles of NH3 formed.Using stoichiometry,1 mole of N2 produces 2 moles of NH3. Therefore, 0.3 moles of N2 will produce (2/1) × 0.3 = 0.6 moles of NH3.Using molar mass, the mass of NH3 is:molar mass of NH3 = 17 g/molMass of NH3 = Number of moles of NH3 × Molar mass of NH3= 0.6 × 17= 10.2 gTherefore, the mass of NH3 formed is 10.2 g.Answer: d) 10.2 g

To know more about molar mass visit :

brainly.com/question/31545539

#SPJ11

Answer:

A. stored energy

Explanation:

potential energy is stored energy.

kinetic energy is the energy of motion

The Avogadro number in chemistry is 6.022 x 10²³ in scientific notation and 6.022E23 in engineering notation.

The Avogadro number, denoted as Nₐ, is a fundamental constant in chemistry that represents the number of atoms or molecules in one mole of a substance. It is approximately equal to 6.022 x 10²³.

In scientific notation, the Avogadro number is written as 6.022 x 10²³. This notation consists of a coefficient (6.022) multiplied by 10 raised to a certain power (23 in this case), indicating the number of zeros to be added after the coefficient.

In engineering notation, the Avogadro number is represented as 6.022E23. Here, the "E" denotes "times ten raised to the power of," and the number following it (23) indicates the exponent.

learn more about Avogadro number here:

https://brainly.com/question/11907018

#SPJ4

A nucleotide is a basic unit of nucleic acid. Hydrogen bonds between each nucleotide sugar group hold individual DNA strands together within the sugar-phosphate backbone of each strand.

Each nucleotide consists of three parts: a sugar molecule, a phosphate group, and a nitrogenous base.

Nucleotides are the building blocks of DNA and RNA.

The nucleotides that make up DNA are deoxyadenosine, deoxythymidine, deoxycytidine, and deoxyguanosine.

These nucleotides are frequently called deoxyribonucleotides because they have deoxyribose, a sugar, in their structure.

The structure of DNA consists of two strands that run antiparallel to one another and are connected by hydrogen bonds between the nitrogenous bases.

Hydrogen bonds between each nucleotide sugar group hold individual DNA strands together within the sugar-phosphate backbone of each strand.

In the structure of DNA, nitrogenous bases from one strand bind to complementary bases in the opposing strand. The nitrogenous bases form hydrogen bonds in this interaction.

To know more about nucleotide visit:

https://brainly.com/question/16308848

#SPJ11

The Vant Hoff factor as\(K_2}\)S break into in water is 3

What does vant Hoff factor mean?

The ratio of a substance's mass concentration to the concentration of the particles that are produced when it dissolves is known as the Van't Hoff factor. The Van't Hoff factor describes how much a substance associates or dissociates in a solution.

The ratio of the final moles following dissociation or association to the beginning moles before to dissociation or association of an electrolyte in a solution is known as the Van't Hoff factor. The solute's property governs the number of particles, which is independent of the solution's concentration.

\(K_2}\)S ⇒ 2K+ + \(S_2}\)-

\(K_2}\)S dissolves into 3 particles .

To learn more about Van't Hoff factor use:

brainly.com/question/8837607

#SPJ1

The Vant Hoff factor as \(K_{2}S\) break into in water is 3

What does vant Hoff factor mean?

The ratio of a substance's mass concentration to the concentration of the particles that are produced when it dissolves is known as the Van't Hoff factor. The Van't Hoff factor describes how much a substance associates or dissociates in a solution.

The ratio of the final moles following dissociation or association to the beginning moles before to dissociation or association of an electrolyte in a solution is known as the Van't Hoff factor. The solute's property governs the number of particles, which is independent of the solution's concentration.

\(K_{2}S\) ⇒ 2K+ + -\(S_{2}\)

\(K_{2}S\) dissolves into 3 particles .

To learn more about Van't Hoff factor use:

brainly.com/question/8837607

#SPJ1

Answer:

When for example, heating up an ice cube the particles of the ice start to vibrate fast enough to get separated into liquid caused from high temperature. So the answer is Higher.

Answer:

a, there will be more beetles available for other organisms

Answer:

that's a difficult question

Explanation:

Sorry!!!!!

Answer:

Atoms are complex structures, and scientists use different models or descriptions to explain their behavior and properties. These models have evolved over time as our understanding of the atom has increased.

One reason for the different ways to describe an atom is that atoms have both particle-like and wave-like properties. Early models, such as the Thomson model, viewed atoms as a positively charged sphere with negatively charged electrons scattered throughout. Later models, such as the Rutherford model and Bohr model, introduced the concept of the nucleus and orbiting electrons.

As our understanding of quantum mechanics improved, new models, such as the quantum mechanical model, were developed to better explain the wave-like nature of electrons and their behavior within atoms. This model uses a mathematical approach to describe the probability of finding an electron in a specific location within an atom.

Additionally, different models may be better suited for different purposes. For example, the Bohr model is often used in introductory chemistry courses to explain the concept of energy levels, while the quantum mechanical model is more advanced and can be used to calculate more precise properties of atoms.

In summary, the different ways to describe an atom reflect the evolving nature of scientific understanding, as well as the need for different models to explain different aspects of the atom.

Explanation:

Answer:

The entropy of this reaction (ΔS) = -187.9 J/K

Explanation:

.Step : Data given

ΔS = -187.9 J/K

ΔH = -198.4 kJ

T = 297.0 K

Step 2: The balanced equation

2SO2(g) + O2(g) → 2SO3(g)

Step 3: Calculate the entropy

ΔG = ΔH - TΔS

⇒ΔG = the gibbs free energy

⇒ΔH = the change in enthalpy of the reaction = -198.4 kJ

⇒with T = the temperature = 297.0 K

⇒with ΔS = the change of entropy =  -187.9 J/K

ΔG = -198400 kJ -297*(-187.9kJ/mol)

ΔG = -198400+55806.3

ΔG = - 142593.7 kJ = the gibbs free energy

The entropy of this reaction (ΔS) = -187.9 J/K

Answer:

C. -187.9 J/K

Explanation:

Entropy is just ΔS, which it gives you in the question as -187.9 J/K.

Answer  usually expressed In the units of the last Qrder of the value of the ... one, two or three significant figures, we find the value of the root in the tn ... The numbers in the table can be regarded as the right-hand ... 1.63 5.1039 0.1959.

Explanation: I hope this helps <3

C6H1206 is a compound (of glucose).

Answer:

gang gang

Explanation:

In all it means a biologist specializing in physiology.

The work done by the electric field on the proton is:W = -ΔPE = -5.36 x 10^-14 J

The proton has a positive charge, and it is brought to rest by an electric field. Therefore, we know that the electric field is directed opposite to the direction of motion of the proton, or in the direction of the force on the proton. The work done by the electric field on the proton can be calculated using the equation:W = -ΔPE.where W is the work done, ΔPE is the change in potential energy, and the negative sign indicates that the electric field is doing work on the proton. Since the proton is brought to rest, its final kinetic energy is zero.

Therefore, the work done by the electric field must be equal to the initial kinetic energy of the proton:W = KEi = 0.5mv^2where m is the mass of the proton and v is its initial speed.Using the given initial speed of the proton, we can calculate its initial kinetic energy:KEi = 0.5mv^2 = 0.5 x 1.67 x 10^-27 kg x (8.10 x 10^5 m/s)^2 = 5.36 x 10^-14 J

Therefore, the work done by the electric field on the proton is:W = -ΔPE = -5.36 x 10^-14 J

Since the electric field is doing work on the proton, the proton is moving into a region of lower potential.

Learn more about proton here:https://brainly.com/question/1481324

#SPJ11

Answer:

an acid is a proton (H⁺) donor

Explanation:

hope this helps

pls nmark brainliest

Answer:

dilute sulphuric acid has less no. of h +ions so it can't react properly