7. A sound wave travels 500m in 60 seconds. Calculate the speed of the sound?

Answer:

A. Wave Height

Explanation:

Formation of the Lewis acid catalystIn the first step of the Friedel-Crafts alkylation reaction, the Lewis acid catalyst is generated by combining aluminum chloride (AlCl3) and iron(III) chloride (FeCl3). The reaction can be represented as follows:AlCl3 + FeCl3 → FeCl4− + AlCl2+

Generation of the electrophile: The electrophile is generated by reacting the alkyl halide (in this case, ethyl chloride) with the Lewis acid catalyst. The mechanism for this reaction involves two steps. Formation of a carbocation intermediate, The alkyl halide (ethyl chloride) is attacked by the Lewis acid catalyst (AlCl2+) to form a carbocation intermediate, as shown below. Deprotonation of the carbocation intermediate by the Lewis acid catalyst

The carbocation intermediate is then deprotonated by the Lewis acid catalyst (AlCl2+) to generate the electrophile (an ethyl carbocation), as shown below: Alkylation of the aromatic ring. The electrophile (ethyl carbocation) then reacts with the aromatic ring (in this case, benzene) to form the alkylated product (ethylbenzene), as shown below: Note that the curly arrows indicate the movement of electron pairs, and the charges and nonbonding electron pairs are indicated where necessary.

Also note that the double bond is not involved in the mechanism, so it does not need to be included in your diagram. Finally, be aware that there are some variations in the mechanism for the Friedel-Crafts alkylation reaction, depending on the specific reactants and conditions used.

To know more about Friedel-Crafts alkylation, refer here:

https://brainly.com/question/30884625#

#SPJ11

The Enzymes are biological catalysts that increase the rate of chemical reactions in living organisms.

The activity of enzymes is influenced by many factors, including environmental factors such as pH.

Enzymes can only function within a specific range of pH, and if the pH is too high or too low, the enzyme activity can be significantly affected.

A high environmental pH, or alkaline condition, can significantly affect the activity of an enzyme.

If the pH of the environment is too high, the H+ concentration decreases, and the enzyme's active site may change. The active site of enzymes is highly specific and complementary to the substrate molecule.

The active site may lose its shape when the pH is too high, making it impossible for the enzyme to bind with the substrate molecule and form an enzyme-substrate complex. As a result, the reaction rate will decrease or the enzyme may be permanently denatured at extreme pH values.

Therefore, a high environmental pH of 150 will affect an enzyme's activity by causing it to become denatured or changing the shape of the active site so that it no longer complements the substrate molecule.

Learn more about enzymes with the given link,

https://brainly.com/question/14577353

#SPJ11

Answer:

Moles of magnesium produced via this electrolysis is 3.8798 moles.

Explanation:

we know that the relation between current and charge is given by

I=Q/t

 where

     I=Current consumed

     Q=amount of charge produced

     t=time

Given,

amount of current passed (I)=13A

Total time (t)= 16 h

moles of magnesium=?

we know the electrolysis equation of magnesium chloride'

     Mg+2 + 2e- -------> Mg

  which says that, 2 coloumbs of charge required to produce 1 mole of magnesium.

we can caluclate the charge produced from the given data using the relation I=Q/t

13A=Q/16*60*60

Q=748,800 coloumbs

  =748,800/96500 F                  (1F=96500C)

Q=7.76 F

from the electrolysis equation, 2F charge produces 1 mole of magnesium.Similarly,

moles of magnesium produced by 7.76F charge =7.76/2=3.387 moles

Answer:

Explanation:

Answer:

10 moles of O2

Explanation:

Balanced Equation:

CH4 + 2O2=CO2+2H2O

Now,

According to Stoichiometry,

In the reaction,

           1 mole CO2 is produced by 2 moles of O2

∴5 moles of CO2 is produced by (2 X 5) moles of O2

                                                       = 10 moles of O2

Therefore, to produce 5 moles of CO2, 10 moles of Oxygen is needed.

Answer:

1. Cerium

2. Iodine

3. Potassium

4. Lead

5. Boron

6. Calcium

7. Krypton

8. Einsteinium

Explanation:

Hope it helped!

Answer: The mass of oxygen in 25.0 grams of potassium permanganate, KMnO4 is 10.13 grams. molar mass of KMnO₄ = 39 + 55 + 16(4).

Explanation:hope this helps ^^ have a good day xlXCherryColaXlx..(pls mark me brainliest)

To determine the mass of oxygen in 25.0 grams of potassium permanganate (KMnO4), we need to consider the molar mass and the ratio of oxygen atoms in the compound.

Molar mass is a term used in chemistry to denote the mass of one mole of a substance. It is expressed in grams per mole (g/mol). Molar mass is calculated by summing up the atomic masses of all the atoms in a molecule, as indicated by its chemical formula.

The molar mass of potassium permanganate (KMnO4) can be calculated as follows:

Molar mass of K = 39.10 g/mol

Molar mass of Mn = 54.94 g/mol

Molar mass of O = 16.00 g/mol (since there are 4 oxygen atoms in KMnO4)

Molar mass of KMnO4 = (39.10 g/mol) + (54.94 g/mol) + (4 * 16.00 g/mol)

= 39.10 g/mol + 54.94 g/mol + 64.00 g/mol

= 158.04 g/mol

Now, we can calculate the mass of oxygen in 25.0 grams of KMnO4 using the molar mass and the molar ratio:

Mass of oxygen = (Molar mass of O / Molar mass of KMnO4) * Mass of KMnO4

= (4 * 16.00 g/mol / 158.04 g/mol) * 25.0 g

= (64.00 g / 158.04 g) * 25.0 g

= 0.4052 * 25.0 g

= 10.13 g (rounded to two decimal places)

Therefore, the mass of oxygen in 25.0 grams of potassium permanganate (KMnO4) is approximately 10.13 grams.

Learn more about potassium permanganate at:

https://brainly.com/question/31384813

#SPJ2

Answer:

Cell

Explanation:

Cell is the smallest and basic unit of life

A large volcanic eruption occurred spewing ash and other gases into the atmosphere and most likely it increases atmospheric carbon dioxide levels due to lower global photosynthesis rates. Hence, the option B is correct.

Volcanic eruptions impacts climate change through emitting volcanic gases into the atmosphere. The volcanic gases mainly contains sulfur dioxide, which causes global cooling, and volcanic carbon dioxide, which has the potential to promote global warming. Increase rate in the global warming reduces the rate of photosynthesis, which in return become the reason for the eruption of Carbon cycle.

Learn more about carbon cycle from the link given below.

https://brainly.com/question/3493343

#SPJ4

The grammatical name for "most human being" would be a superlative adjective.

The phrase "most human being" consists of the noun "human being" modified by the determiner "most."

The grammatical name for "most" in this context is a superlative determiner. Superlative determiners are used to indicate the highest degree or extent of something. In this case, "most" is used to express the highest degree or extent of a human being, implying a comparison to others.

The term "human being" functions as a noun phrase, referring to an individual of the human species.

Learn more about superlative adjectives at: https://brainly.com/question/2261481

#SPJ11

The answer depends on the specific properties and behavior of the test reagents used in part C.

In Part C, we have the reaction:

Strontium metal(s) + water(l) → strontium hydroxide(aq) + hydrogen(g)

The equilibrium constant (K) for a chemical reaction is a measure of the ratio of the concentrations (or partial pressures) of the products to the concentrations (or partial pressures) of the reactants at equilibrium. It indicates the extent to which a reaction proceeds in the forward or reverse direction.

In this specific reaction, the equilibrium constant is determined by the concentrations of strontium hydroxide and hydrogen gas.

The presence of test reagents can potentially affect the equilibrium constant if they introduce additional species that participate in the reaction or if they alter the concentrations of the reactants or products.

However, in this case, the test reagents are not mentioned in Part C.  It would depend on the specific properties and behavior of the test reagents and their interaction with the reaction components. Therefore, without specific information about the test reagents, we cannot determine if any of them would change the equilibrium constant of the reaction.

Learn more about test reagents

brainly.com/question/28463799

#SPJ11

For the necessary concentration, 500 ml distilled water must be added here.

You can consume distilled water, of course. Because it is flatter and less flavored as tap and bottled waters, you might not enjoy the taste. Businesses boil water, collect the steam, and then condense the liquid back to liquid to create distilled water. Minerals and pollutants are taken out of the water by this method.

Briefing:

Molarity= Volume /Moles​

Moles of HCl present =100×10 −3 ×3=0.3

Required molarity =0.5

∴0.5= Volume /0.3

​∴Volume=0.6 L=600 mL

Here, 600 mL total, 100 mL at the beginning

For the necessary concentration, 500 ml distilled water must be added here.

To know more about distilled water visit:

https://brainly.com/question/6071909

#SPJ4

All once-living things contain carbon - 14 and the amount begins to decrease when the tree dies. That's why we have to use 1 point carbon-14 to measure the half-life of a decaying tree.

Carbon-14 is a naturally occurring radioactive isotope of carbon with a half-life of 5730 years. Carbon-14 is produced in the upper atmosphere when cosmic rays hit nitrogen atoms. Carbon-14 is then oxidized to form carbon dioxide, which is assimilated by plants via photosynthesis.

The half-life of carbon-14 is used to determine the age of once-living organisms, including trees. Because carbon-14 decays over time, measuring its abundance in a sample allows scientists to determine how long it has been since the organism died.

To know more about carbon - 14 visit:

https://brainly.com/question/30233846

#SPJ11

The fourth step of the Born-Haber cycle involves the formation of an ionic compound from its constituent ions.

The chemical equation for this step can be written as follows:
M₊(g) ₊ X-(g) → MX(s)
In this equation, M represents a metal cation, X represents a non-metal anion, and MX represents the ionic compound formed by their combination. The phase of each species is indicated in the equation: M₊(g) and X-(g) represent the gaseous ions, while MX(s) represents the solid ionic compound. This step involves the release of energy as the ions come together to form a stable compound.

Learn more about ionic compound at

brainly.com/question/3222171

#SPJ11

Answer:

C₆H₁₀O₅

Explanation:

In chemistry, we denote any molecule with carbons, hydrogens, and other elements combined together as organic compounds. This is where get get "Organic Chemistry" from.

Wood is going to be an organic compound.

Answer:

C₆H₁₀O₅

Explanation:

D5W refers to one of the solutions used as an intravenous fluid. It is a 5% by mass solution of dextrose, C6H12O6 in water. The density of D5W is 1.08 g/ml. The molarity of the solution is 0.3 M. Thus, option a is correct.

The formula for molarity is as follows:

Molarity (M) = Moles of Solute ÷ Volume of Solution (in liters).

As a result, let's start by calculating the moles of solute:

Mass (M) = Density (D) x Volume (V)

= 1.08 g/ml x 1000 ml Mass (M) = 1080 g

Since the percentage of dextrose in D5W is 5% by mass, the mass of dextrose in 1000 ml of D5W can be calculated as follows:

Mass of Dextrose = (5/100) x 1080 g Mass of Dextrose = 54 g

Moles of Dextrose = Mass of Dextrose ÷ Molar mass of dextrose

Moles of Dextrose = 54 g ÷ 180 g/mol = 0.3 mol

Molarity (M) = Moles of Solute ÷ Volume of Solution (in liters) = 0.3 mol ÷ 1 L = 0.3 M

Therefore, the molarity of the solution is 0.3 M.  Thus, option a is correct.

Learn more about D5W here:

https://brainly.com/question/12008603

#SPJ11

Answer:

D. Ruler

Explanation:

Use the formula to find the volume of a cuboid by measuring the length, width, and height and multiplying all of them by each other.

Answer:

Azeotrope

Explanation:

An azeotrope is a liquid mixture that has a constant boiling point and whose vapor has the same composition as the liquid

Another name for constant boiling mixture.

\(\sf\purple{Azeotrope.}\) ✅

\(\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}\)

B. Three identical single bonds alternating with three identical double bonds

The chemical bonding structure of benzene consists of six carbon atoms bonded together in a ring. In this structure, there are three single bonds and three double bonds, which are arranged in an alternating pattern around the ring. This bond arrangement is known as an aromatic bond and is characteristic of aromatic compounds such as benzene.

It is characterized by its high stability and low reactivity, which are due to the delocalization of the electrons in the ring.

Answer: Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell.

Explanation: I hope that helped and Happy friday.

The M+1 signal in a compound containing 17 carbon atoms is expected to be approximately 18.7% of the molecular ion abundance.

The M+1 signal in a mass spectrum is due to the presence of 13C isotopes in the compound. The natural abundance of 13C is approximately 1.1%, so for a compound containing 17 carbon atoms, the M+1 signal would be expected to be 17 * 1.1% = 18.7%. However, this is just an approximate value, as the actual abundance of 13C can vary slightly.

To calculate the approximate percentage of the M+1 signal in a compound containing 17 carbon atoms, you can use the following formula:

M+1 signal percentage = (number of carbon atoms) * (natural abundance of 13C) = 17 * 1.1% = 18.7%

Therefore, the M+1 signal in a compound containing 17 carbon atoms is expected to be approximately 18.7% of the molecular ion abundance.

Learn more about molecular ion at

https://brainly.com/question/30530410

#SPJ11

The first step of the reaction, we have  reaction between a nucleophile and an electrophile.

We can see that in the first step of the reaction, we have  reaction between a nucleophile and an electrophile. In this case, the electrophile would have to be an alkyl halide which produces a carbocation as show in the image attached. What we have here is quite similar or  like most of the organic reactions, this reaction occurs in a number of detailed or smaller steps and each step of the reaction is going to help to bring us closer to the end product of the entire steps of the reaction which is wat we target as we carry out the particular reaction.The second step involves the reduction of the alkyne with the use of a Lindlar catalyst. As such the reaction is poisoned and it stops at the alkyne stage rather than going on to obtain the alkane.

Learn more about electrophile here:

https://brainly.com/question/21773561

#SPJ4

Answer:

6.3 moles of water = 6.3*18=113.4 grams per mole

Explanation:

Answer:

DNA contains four nitrogen bases: adenine, thiamine, guanine and cytosine. Adenine and thymine pair, and guanine and cytosine pair.

Explanation:

In combination, nitrogen is found in the rain and soil as ammonia and ammonium salts and in seawater as ammonium (NH4+), nitrite (NO2−), and nitrate (NO3−) ions...

Answer:

The possible valances can be determined by electron configuration and electron negativity

Good Luck even though this was asked 2 weeks ago

Explanation:

All atoms strive for stability. The optima electron configuration is the electron configuration of the VIII A family or inert gases.

Look at the electron configuration of the nonmetal and how many more electrons the nonmetal needs to achieve the stable electron configuration of the inert gases. Non metals tend to be negative in nature and gain electrons. ( They are oxidizing agents)

For example Florine atomic number 9 needs one more electron to reach a valance number of 8 electrons to equal Neon atomic number 10. Hence Flowrine has a valance of -1

Oxygen atomic number 8 needs two more electrons to reach a valance number of 8 electrons to equal Neon atomic number 10. Hence Oxygen has a valance charge of -2.

Non metals with a low electron negativity will lose electrons when reacting with another non metal that has a higher electron negativity. When the non metal forms an ion it is necessary to look at the electron structure to determine how many electrons the element can lose to gain stability.

For example Chlorine which is normally -1 like Florine when it combines with oxygen can be +1, +3, + 5 or +7. It can lose its one unpaired electron, or combinations of the unpaired electron and sets of the three pairs of electrons.

Answer:

I think 11.1 degrees Celsuis

Explanation:

Let me know if i'm right coz im not too sure.