what happens to the rate of a reaction when a catalyst is added to a reaction that is known to be zeroth order?

Answer:

Final pressure = 1848.36 Torr

Explanation:

Given that,

Initial volume, V₁ = 5.2 L

Initial pressure, P₁ = 782 Torr

Initial volume, V₂ = 2.2 L

We need to find the final pressure. We know that the relationship between pressure and volume is given by :

\(P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{782\times 5.2}{2.2}\\\\P_2=1848.36\ torr\)

So, the final pressure is equal to 1848.36 Torr.

Answer:

165.3 cm^3

Explanation: hope this is correct!!

P1 * V1 / T1 = P2 * V2 / T2

P1 = 84.6 kPa

V1 = 215 cm³

T1 = 23.5°C = 23.5 + 273 K = 296.5 K

At STP:

P2 = 101.3 kPa

V2 = ?

T2 = 273 K

The rate of reaction is given by rate = k [CH3COOC2H5] [C4H9OH], where k is the rate constant. From the given data, the forward reaction rate constant, k = 9 x 10-5 dm3 mol-1 s-1. The equilibrium constant, Kc = 1.08.

At equilibrium, the rate of forward reaction equals the rate of backward reaction. So, Kc = [CH3COOC4H9] [C2H5OH] / [CH3COOC2H5] [C4H9OH] At equilibrium, we have [CH3COOC4H9] [C2H5OH] / [CH3COOC2H5] [C4H9OH] = 1.08 ... equation (1)

The plot of the concentration of butanol and butyl acetate as a function of time is given in the following graph: \(y=1.545x^{2}-279.29x+14411\)\(z=400-0.625x\)The unit of y is mol/dm3 and x is seconds. The unit of z is dm3. (b)The maximum concentration of butyl acetate is reached when the concentration of butanol is zero.

Therefore, the total reactor volume to maximize the concentration of butyl acetate and avoid overflowing the vessel is 279 dm3 (approx).

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When the product is added to the solution, it will shift the reaction forward.

Carbonation is a form of chemical reaction in which carbon dioxide is added to a solution to give carbonates, bicarbonates, and carbonic acid. In chemistry, the term is used in place of carboxylation to form carboxylic acids

When a product is added to a system, the equilibrium will shift to the left, so as to produce more reactants but if the reactants is remove from the system, equilibrium will also be shifted to the left.

Therefore, When the product is added to the solution, it will shift the reaction forward.

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While preparing 0.25 mol of 1.0 L of a bleaching solution in a volumetric flask, 0.357 liters of 0.70 MM NaOCl is needed.

Given to us is

Desired amount of NaOCl = 0.25 mol

Concentration of NaOCl in bleach = 0.70 M

To determine the volume of bleach needed, we can use the given information about the molar concentration of NaOCl in the bleach and the desired amount of NaOCl in the final solution.

We can use the following equation to calculate the volume of bleach needed:

Volume of bleach = (Desired amount of NaOCl) / (Concentration of NaOCl in bleach)

Substituting the values:

Volume of bleach = (0.25 mol) / (0.70 M)

Calculating the volume of bleach:

Volume of bleach = 0.357 L

Therefore, you would need to add 0.357 liters (or 357 mL) of bleach to the volumetric flask in order to obtain the desired amount of NaOCl.

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Answer:

All of the above

A person lifts up a box from the ground and places it on a shelf

Explanation:

Work done is the force applied on a body to move it through a particular distance or to cause displacement.

 Force applied which is the push or pull on a body is very important

 Distance or displacement which is the resultant length of path traveled by the body is key.

 Work done  = force x distance moved in the direction of the force

A person lifting a box is doing work.

Answer:

Carbon and Hydrogen

Explanation:

So the C stands for Carbon and H is for Hydrogen. Methane (CH4) is made up of one atom of Carbon and 4 atoms of Hydrogen.

Hope this helps

Answer:

This option is correct

Explanation:

Molecules are expressed in the form of Lewis in order to simplify their expression or chemical study, but this does not mean that they manifest or respect this form in all three dimensions since some are generally unstable, or even in the third dimension, these locations between atoms are respected for the characteristics of their unions.

To solve this we must be knowing each and every concept related to moles. Therefore, 0.11moles of oxygen were burned and 0.222 moles of water were formed.

A mole is merely a measuring unit. In reality, it is among the International System on Units' seven foundation units (SI). When basically determines are insufficient, new units are created.

Chemical reactions frequently occur at levels that use grams would be inappropriate, but using actual figures of atoms/molecules/ions would also be misleading. As a result, scientists devised the mole for bridge the divide between extremely small and extremely huge numbers.

2H\(_2\) + O\(_2\) \(\rightarrow\)  2H\(_2\)O

The mole ratio between hydrogen gas and oxygen gas is 2:1

moles of hydrogen gas = 0.222 moles

moles of oxygen gas =0.11moles

moles of water formed = 0.222 moles

Therefore, 0.11moles  of oxygen were burned and 0.222 moles of water were formed.

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Boyle's Law

P₁V₁=P₂V₂

7.20 = 14.V₂

V₂ = 10 L

Answer:

2NaOH + 2Al +2H2O = 2NaAlO2 +3H

Explanation:

Aluminum is an amphoteric element it reacts with both bases and acids to form a salt and hydrogen gas.The reaction is highly exothermic.

Answer:

0.56kg=?mg

0.56kg x (1000 g/1kg) X (1000mg/1g) = 560,000mg

Explanation:

You got it right. Great Job!

When fasting or eating a very low calorie diet (VLCD) for prolonged periods, the body will find fuel from its energy stores. One of the last reserves the body will use is muscle tissue.

During periods of fasting or extreme caloric restriction, the body primarily relies on its energy stores to meet its energy needs. Initially, it depletes glycogen stores in the liver and muscles. Once glycogen is exhausted, the body turns to fat stores for energy through a process called lipolysis. Fatty acids are released from adipose tissue and transported to the liver, where they are converted into ketone bodies that can be used as an alternative fuel source, particularly by the brain.

However, if the energy deficit continues for an extended period, the body may start breaking down muscle tissue for energy. This occurs because muscle tissue contains amino acids, which can be converted into glucose through a process called gluconeogenesis. The body tries to preserve muscle tissue as much as possible and relies on fat stores as the primary energy source. Nevertheless, prolonged fasting or VLCD can lead to muscle loss, which can have negative impacts on overall health and metabolic rate. It's important to note that incorporating regular physical activity and resistance training while on a VLCD can help mitigate muscle loss.

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Answer:

I think the answer is the 3rd one

Answer:  fuel and oxygen are reactants.

Explanation:

Answer:

fuel and oxygen

Explanation:

I take test

Answer:

A push or pull is referred to as a force. Forces can cause objects to move, slow, stop, or change the direction in which they travel. The force of gravity, for example, pulls all objects toward the Earth's center. Every time two things interact, a force is exerted on each of them. When this happens, the two items no longer feel the force after the interaction ends.

Explanation:

Force is that external physical cause which changes or tends to change:

hope this helps you.

The form of transportation that accounts for the majority of greenhouse gas (GHG) emissions in Canada is passenger transport, including cars, trucks, and motorcycles.

Specifically, these modes of transportation emit carbon dioxide (\(CO_2\)) and contribute significantly to climate change.Several modes of transportation contribute to greenhouse gas emissions in Canada. However, according to the graph titled "Transportation GHG Emissions by mode, Canada,"

passenger transport such as cars, trucks, and motorcycles account for a significant percentage of total emissions. The data in the chart is presented below:- Passenger transport (Cars, trucks, and motorcycles):

44%- Light trucks (SUVs, vans, and pickups): 10%- Aviation: 9%- Heavy trucks: 8%- Rail: 3%- Electric vehicles: 1%- Transit buses: 1%- Walk/bike: 1%- Light rail transit (LRT): <1%

Therefore, passenger transport, including cars, trucks, and motorcycles, accounts for the majority of GHG emissions in Canada.

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Condensation is a gas becoming a liquid.

Condensation is the process by which a gas becomes a liquid.

When a gas is cooled, its particles slow down and condensate to form a liquid. This is known as condensation, and it happens at the same temperature as boiling.

Condensation occurs when steam (gas) cools and turns into water (liquid).

As a result of this question, condensation is the process by which a gaseous substance transforms into a liquid.

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Answer: In the Earth's lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources react chemically in the presence of sunlight. Ozone at ground level is a harmful air pollutant.

Explanation: In the Earth's lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources react chemically in the presence of sunlight. Ozone at ground level is a harmful air pollutant.

Although TLC is a useful method for monitoring reactions, other observations like color changes, dissolution of solids, gas production, and crystal formation can also provide valuable information about a reaction's completion.

If you forget to monitor a reaction using TLC, there are other observations you can rely on to suggest that the reaction is complete. These observations may include color changes, dissolution of solids, gas production, and crystal formation.

First, a color change in the solution can indicate a reaction's progress. In this case, the solution turning green might signify a reaction completion. Chemical reactions often involve the formation or breakdown of compounds, which can result in a change in the solution's color.

Second, the dissolution of solids in the vial can be another sign. If all solids have dissolved, it could mean that the reactants have reacted completely and formed the desired product(s) in the solution.

Third, monitoring gas production can provide valuable information about the reaction. If you observe no more brown gas being produced, it could suggest that the gas-producing reactants have been used up, and the reaction is complete.

Lastly, crystal formation when the vial is cooled down can be an indication of product formation. Crystals can form when the reaction is complete, and the product(s) precipitate out of the solution as the temperature decreases.

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Explanation:

ascorbic acid is lemon

lemon contain ascorbic acid....

it is organic acid.....

Answer: Amount of ethyl butyrate formed = 11.3 g

Explanation: The reaction between butanoic acid (C3H7COOH) and excess ethanol (C2H5OH) is:

Since ethanol is the excess reagent, the formation of the product i.e. ethyl butyrate is influenced by the amount of butanoic acid present

Based on the reaction stoichiometry:

1 mole of butanoic acid produces 1 mole of ethyl butyrate

Mass of butanoic acid = 8.50 g

Molar mass of butanoic acid = 88 g/mol

Moles of ethyl butyrate = 0.097

Molar mass of ethyl butyrate= 116 g/mol

brainless, please

Grams of ethyl butyrate produced : 11.27 g

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

The reaction between Butanoic acid-C₄H₈O₂ and an excess Ethanol-C₂H₅OH to produce ethyl butyrate-C₆H₁₂O₂ :

C₄H₈O₂+C₂H₅OH⇒C₆H₁₂O₂+H₂O

mass Butanoic acid- C₄H₈O₂= 8.55 g, so mol C₄H₈O₂ (MW=88,11 g/mol) :

\(\tt \dfrac{8.55}{88.11}=0.097\)

\(\tt \%yield=\dfrac{actual}{theoretical}\times 100\%\)

For 100% yield ⇒ actual=theoretical

Because Ethanol as an excess, so Butanoic acid as a limiting reactant and mol Ethyl butyrate based on mol Butanoic acid

From equation, mol ratio of mol C₆H₁₂O₂ : mol C₄H₈O₂ = 1 : 1, so : mol C₆H₁₂O₂=mol C₄H₈O₂= 0.097

mass C₆H₁₂O₂(MW=116.16 g/mol)

\(\tt 0.097\times 116,16 g/mol=11.27~g\)

Answer: not to be rude but who is Miley partridge? If she is a friend then u r a kind hearted person

Explanation:

Answer:

Facts About Biosphere 1: The Evolution Of Biosphere

Biosphere has evolved.  It started from the non living matter or simple organic compound which created the life. This process is called bioprocess which conducted around 3.5 billion years ago.

Facts about Biosphere 2: the life of earth

It is not easy for the scientists to determine the life of earth.  However, they can estimate it after the discovery of the metasedimentary rocks from Western Greenland. The scientists believed that it was dated back around 3.7 billion years old.

Facts About Biosphere 3: Another Evidence For The Earth’s Life

Evidence was found in Western Australia. The discovery of microbial mat fossils made the scientists estimated that the earth was dated around 3.48 billion years ago.

Answer:

The dependent variable is the amount of hairballs tallied up at the end of each week.

The independent variable is the brushing of the cats hair. because the person controls that.

The constants are the amount of food, feeding time, playing amount, and the amount of weeks.

Explanation:

The amount of hairballs tallied up is the dependent variable because it is influenced by the independent variable which is brushing the cats hair. The person brushes their cats hair in hopes to reduce the amount of hairballs they find in the week.

Answer:

C. The Zebra Mussels had not yet been introduced to the area.

2.

Unionid Mussels they had a headstart in 1990

Approximately 3.04 grams of magnesium would be required to react with 0.25 moles of hydrochloric acid.

To determine the mass of Mg required, we need to use the balanced chemical equation for the reaction between hydrochloric acid (HCl) and magnesium (Mg):

2HCl + Mg → MgCl2 + H2

From the balanced equation, we can see that 2 moles of HCl react with 1 mole of Mg. Therefore, if 0.25 mol of HCl reacts, we would need half of that amount, which is 0.125 mol of Mg.

To calculate the mass of Mg required, we need to multiply the number of moles of Mg by its molar mass. The molar mass of Mg is given as 24.31 g/mol. Therefore, the mass of Mg required can be calculated as follows:

Mass of Mg = Number of moles of Mg × Molar mass of Mg

Mass of Mg = 0.125 mol × 24.31 g/mol

Mass of Mg = 3.04 g

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Of the 6 carbons in a starting molecule of glucose, at the completion of pyruvate oxidation, two carbons are fully oxidized to CO2, while four carbons remain in acetyl groups.

This is further explained below.

Generally, The acetyl group is a functional group that is used in organic chemistry.

Its chemical formula is \(COCH_3,\) and its structural formula is \(CCH_3.\)Occasionally, the sign Ac will be used to symbolize it.

In the nomenclature used by the IUPAC, acetyl is referred to as ethanol, despite the fact that very few people actually use this name. A methyl group is found inside the acetyl group, and it is single-bonded to a carbonyl.

In conclusion, At the end of the pyruvate oxidation process, two of the six carbons that were present in the glucose molecule at the beginning are converted into carbon dioxide, while the other four carbons are still present as acetyl groups.

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