A mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can affect the Michaelis-Menten constant (Km) in enzyme kinetics by increasing the value of Km.
Km is a measure of the substrate concentration required for half-maximal velocity and is a key parameter in describing enzyme catalysis. However, In the presence of a mixed inhibitor, the inhibitor molecule can bind to both the free enzyme and the enzyme-substrate complex with different affinities.
The binding of the inhibitor to the free enzyme reduces the number of active enzyme molecules available for catalysis while binding to the enzyme-substrate complex slows down the catalytic reaction. This leads to a reduction in the effective concentration of the enzyme-substrate complex, which in turn increases the apparent Km value.
In other words, the higher affinity of the mixed inhibitor for the enzyme reduces the efficiency of the enzyme-substrate complex formation, making it more difficult for the substrate to bind to the enzyme, hence increasing the value of Km. Therefore, a mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can cause a decrease in the efficiency of enzyme catalysis, which is reflected in the increase in Km.
Know more about Mixed inhibitor here :
https://brainly.com/question/31590577
#SPJ11
Estimate whether the entropy of the system increases or decreases during each process. (a) photodissociation of O2(g) , (b) formation of ozone from oxygen molecules and oxygen atoms, (c) diffusion of CFCs into the stratosphere, (d) desalination of water by reverse osmosis.
(a) Entropy increases (b) Entropy decreases (c) Entropy increases (d) Entropy decreases by reverse osmosis
Here's a brief explanation for each process:
(a) Photodissociation of O2(g): During photodissociation, O2 gas molecules absorb energy from light and break into individual oxygen atoms. Since this process results in an increase in the number of particles, the entropy of the system increases.
(b) Formation of ozone from oxygen molecules and oxygen atoms: Ozone (O3) forms when oxygen molecules (O2) combine with oxygen atoms (O). In this process, the number of particles decreases, as two particles (O2 and O) combine to form one (O3). Thus, the entropy of the system decreases.
(c) Diffusion of CFCs into the stratosphere: During diffusion, CFC molecules spread from a region of higher concentration to a region of lower concentration. This results in an increased dispersal of molecules, and therefore, the entropy of the system increases.
(d) Desalination of water by reverse osmosis: In reverse osmosis, water molecules are separated from dissolved salt ions, creating two separate solutions: pure water and concentrated salt solution. The process involves forcing water molecules through a semi-permeable membrane, organizing them into a less dispersed state. As a result, the entropy of the system decreases.
Learn more about entropy here:
https://brainly.com/question/13999732
#SPJ11
Which statement correctly compares electric charge with electric current?
A.
They both require a human to make them.
B. Neither require charged particles.
C. They both require a battery and a bulb
D. They both require a movement of charged particles.
Answer:
Your answer would be D) They both require a movement of charged particles
Explanation:
In short terms both the charge and the current are made up of charged particles that are always moving, they constantly move to well... stay charged, if they stopped, then the charge would fade until there is nothing left, and if there is nothing left -it means there would be no electricity to use
~Notify me if you have questions~
Have a nice day and hope it helps!
^ω^
-- XxFTSxX
A scientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon
dioxide, oxygen, and nitrogen. Which term most likely describes what she is measuring?
-final pressure
-atmospheric pressure
-combined pressure
-partial pressure
The term that describes what she is measuring is called partial pressure.
What is the Dalton law of partial pressure ?From the Dalton's law of partial pressure, the total pressure of a gas is regarded as the sum of the partial pressures of all the gases in the mixture.
As such, each of the gases; carbon dioxide, oxygen, and nitrogen all possess partial pressures thus the term that describes what she is measuring is called partial pressure.
Learn more about partial pressure:https://brainly.com/question/13199169
#SPJ1
32.5 Grams of NaOH(sodium hydroxide) reacts an excess of CO2( carbon dioxide). 2NaOH(s) + CO2(g)—->Na2CO3(s)+H2O(l) a.What is the theoretical yield of Na2CO3 in grams? Answer: 43.1g NaCO3 (need help on how to get that answer) b. If 16.45 g of Na2CO3 is formed, what is the perfect yield? Answer: 38.2% ( need help on how to get answer)
The reaction can be balanced as follows:2NaOH(s) + CO2(g) → Na2CO3(s) + H2O(l).The percent yield is 38.2%.
First, determine the number of moles of NaOH involved in the reaction.32.5 g NaOH × (1 mole NaOH/40.00 g NaOH)
= 0.8125 moles NaOH
Using the balanced equation, we can determine the theoretical yield of Na2CO3
The reaction is 2 moles of NaOH react with 1 mole of CO2 to form 1 mole of Na2CO3
Theoretical yield of Na2CO3 = moles of NaOH × (1 mole Na2CO3/2 moles NaOH) × (105.99 g Na2CO3/mole Na2CO3)
Theoretical yield of Na2CO3 = 0.8125 moles NaOH × (1 mole Na2CO3/2 moles NaOH) × (105.99 g Na2CO3/mole Na2CO3) = 42.96 g Na2CO3
Therefore, the theoretical yield of Na2CO3 is 42.96 g Na2CO3.
Part B: The percent yield of the reaction is calculated as follows:
Percent yield = (actual yield ÷ theoretical yield) × 100Using the given data, actual yield of Na2CO3 = 16.45 g
Percent yield = (16.45 g ÷ 42.96 g) × 100 = 38.2%
Therefore, the percent yield is 38.2%.
To learn more about reaction visit;
https://brainly.com/question/16737295
#SPJ11
What happens when you heat an exothermic reaction at equilibrium?
If we heat an exothermic reaction at equilibrium then reverse reaction rate starts increasing to maintain an equilibrium.
In thermochemistry, an exothermic reaction is a "reaction for which the general standard enthalpy change ΔH₀ is negative." Exothermic responses typically discharge heat. The term is frequently mistaken for exergonic response, which IUPAC characterizes as "... a response for which the general standard Gibbs energy change ΔG₀ is negative."
A firmly exothermic response will typically likewise be exergonic in light of the fact that ΔH₀ makes a significant commitment to ΔG₀. The majority of the breathtaking compound responses that are shown in homerooms are exothermic and exergonic. The inverse is an endothermic reaction, which generally takes up heat and is driven by an entropy expansion in the framework.
To know more about exothermic reactions,visit here:
https://brainly.com/question/10373907
#SPJ4
true or false Cyclic electron transport is different from noncyclic electron transport in that cyclic electron transport produces NADPH
Answer:
true im sorry if im wrong
Explanation:
1
2. How does a detergent remove a stain?
?
Answer:
By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.
Writing Assignment:
Two other chapters seen in the book that most students find enjoyable are Chapters 17 and 19. Students are to read these Chapters on their own and
write a two-page report on how Chemistry is seen in both chapters. The format of the report is double spaced, Times New Roman, font size 12. One page will be devoted to Chapter 17, and one page will be devoted toChapter 19. Each page will also need a title that is associated with the chapter. The report reflects how you feel Chemistry is seen in both chapters and essentially what you learned about Chemistry from reading both chapters, so writing in first person form is allowed. In addition, the more creative a person is with this assignment, the better.
In Chapters 17 and 19 of the book, Chemistry plays a significant role in the content presented, allowing students to appreciate the subject through different lenses.
In Chapter 17, titled "Chemical Reactions in Everyday Life," the connection between Chemistry and real-world applications becomes evident. By exploring various examples, such as combustion, rusting, and digestion, the chapter demonstrates how chemical reactions influence our daily lives. This insight allows students to develop a greater appreciation for Chemistry, as it helps them recognize its relevance in the world around them.
Chapter 19, titled "The Wonders of Organic Chemistry," delves into the fascinating world of carbon-based compounds and their immense versatility. By highlighting the various functional groups and organic reactions, this chapter showcases the incredible diversity of organic molecules and their essential roles in our lives. From the foods we eat to the medicines we take, organic chemistry is the driving force behind many aspects of our existence. By reading this chapter, students gain a deeper understanding of the importance of organic chemistry and how it contributes to the world we live in.
Learn more about chemical reactions here:
https://brainly.com/question/29762834
#SPJ11
Which action results from the combination of gravity and inertia working on the moon?
the moon’s orbit around Earth
Earth’s downward pull on the moon
the moon’s push against other planets
Earth’s gravitational pull toward the moon
Answer: The correct option is A. The moon's orbit around Earth
Explanation: Newtons first law of motion says that an object in motion will always remain in motion and an object in erst will always stay at rest untill an external force acts upon it. This law is also called law of inertia which is the property of a body to resist any change in its state of rest or motion. Since moon is also revolving around the earth so it is in motion always and it continues its motion.
Answer:
the moon’s orbit around Earth
Explanation:
How many moles of magnesium bromide are formed when 3.0 moles of magnesium reacts with 2.0 moles of bromine?
Mg+Br2 -> MgBr2
Answer:
Explanation:
Hello there, I think this is a limiting agent question.
When 3 moles of Mg is reacted with 2 moles of Br2, because of ratio, we just need 1.5 moles of Br2, so Mg is a limiting agent.
So 3 moles of Mg will make 3 moles of MgBr
Answer:
Use the given functions to set up and simplify
Mg+Br2→MgBr⋅2.
3=
2=
Mg+Br2→gBr⋅2=r2B+gM→MgBr⋅2
Explanation:
SORRY IF I AM WRONG HAVE A BLESS DAY :D
what is the ph at the equivalence point in the titration of a 23.9 ml sample of a 0.449 m aqueous nitrous acid solution with a 0.342 m aqueous barium hydroxide solution?
To determine the pH at the equivalence point in the titration of a 23.9 mL sample of a 0.449 M aqueous nitrous acid (HNO₂) solution with a 0.342 M aqueous barium hydroxide (Ba(OH)₂) solution. So the answer is : the pH at the equivalence point of the titration is 7.
The balanced chemical equation for the titration of nitrous acid (HNO2) with barium hydroxide (Ba(OH)2) is:
HNO2 + Ba(OH)2 → Ba(NO2)2 + 2H2O
From the equation, we can see that the stoichiometric ratio of HNO2 to Ba(OH)2 is 1:1. This means that one mole of HNO2 reacts with one mole of Ba(OH)2.
To calculate the pH at the equivalence point, we need to determine the amount of Ba(OH)2 required to react with all the HNO2 in the sample. This can be calculated using the following formula:
moles of HNO2 = concentration of HNO2 x volume of HNO2
moles of HNO2 = 0.449 M x 0.0239 L = 0.01073 moles
Since the stoichiometric ratio of HNO2 to Ba(OH)2 is 1:1, we know that the amount of Ba(OH)2 required to react with all the HNO2 is also 0.01073 moles.
The concentration of the Ba(OH)2 solution is 0.342 M, which means that the volume of Ba(OH)2 required to react with all the HNO2 can be calculated as:
volume of Ba(OH)2 = moles of Ba(OH)2 / concentration of Ba(OH)2
volume of Ba(OH)2 = 0.01073 moles / 0.342 M = 0.03135 L
At the equivalence point, the moles of HNO2 and Ba(OH)2 are equal, and all the HNO2 has reacted with the Ba(OH)2. The total volume of the solution at the equivalence point is the sum of the volumes of HNO2 and Ba(OH)2, which is:
total volume = volume of HNO2 + volume of Ba(OH)2
total volume = 0.0239 L + 0.03135 L = 0.05525 L
To calculate the concentration of the resulting solution, we can use the formula:
moles of product / volume of solution
moles of product = moles of Ba(NO2)2 = 0.01073 moles
volume of solution = total volume = 0.05525 L
concentration of solution = 0.01073 moles / 0.05525 L = 0.1942 M
At the equivalence point, the solution is a neutral salt solution of Ba(NO2)2. The pH of a neutral solution is 7. Therefore, the pH at the equivalence point of the titration is 7.
For more questions on: titration
https://brainly.com/question/13307013
#SPJ11
What is meant by atomic number?
A. number that represents the number of electrons in the valence shell of an atom
B. number that represents how many neutrons are in an atom’s nucleus
C. number that represents how many protons are in an atom’s nucleus
D. number that represents the total number of particles in an atom’s nucleus
Atomic number of an atom is a number that represents how many protons are in an atom’s nucleus.
What is an atom?An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
Learn more about atom,here:
https://brainly.com/question/13654549
#SPJ2
What happens when chromium nitrate is added to distilled water
Answer:
It does not react with water, but reacts with most acids
Explanation:
Answer:
It doesn't react with water, but reacts with most acids
How much heat must be added to 8.21 g sample of gold to increase its temperature by 6.2°C?
Answer:
Q = 6.56 J
Explanation:
Given thatm
Mass of a sample of gold, m = 8.21 g
The temperature of the sample increase by 6.2°C.
We need to find heat added to the sample of gold. The heat required or added to raise the temperature is given by :
\(Q=mc\Delta T\)
c is the specific heat of gold, \(c=0.129\ J/g^{\circ} C\)
Putting all the values,
\(Q=8.21\times 0.129\times 6.2\\\\=6.56\ J\)
So, 6.56 J of heat is added to the sample of gold.
What is the total number of electrons found in the valence shell of a halogen in the ground state?
Answer:
7
Explanation:
2014 Quantity Nuts 300 Meat 175 2015 Quantity Nuts 420 Meat 340 19 Using CPI what is the inflation rate from 2014 to 2015 if we assume 2014 is the base year? (enter your answer as a percentage and to 2 decimal places as needed) Price 9 19 Price 14
The inflation rate from 2014 to 2015, assuming 2014 as the base year, is 68.09%.
The inflation rate from 2014 to 2015, assuming that 2014 is the base year, can be determined using the Consumer Price Index (CPI). The CPI measures the cost of goods and services over time and is used to calculate inflation. The formula for calculating inflation rate using CPI is as follows: Inflation rate = ((CPI year 2 - CPI year 1) / CPI year 1) x 100To solve this problem, we first need to calculate the CPI for each year using the prices and quantities of nuts and meat.
Calculating CPI for 2014:CPI 2014 = (300 x $9) + (175 x $19) = $5,625 Calculating CPI for 2015:CPI 2015 = (420 x $9) + (340 x $14) = $9,460Using the CPI formula, we can calculate the inflation rate from 2014 to 2015:Inflation rate = ((CPI 2015 - CPI 2014) / CPI 2014) x 100= (($9,460 - $5,625) / $5,625) x 100= $3,835 / $5,625 x 100= 68.09% (to 2 decimal places) Therefore, the inflation rate from 2014 to 2015, assuming 2014 as the base year, is 68.09%.
To know more about rate visit:-
https://brainly.com/question/31892655
#SPJ11
Could anyone just suggest questions to practice using Faraday's Law?
Answer:
just to get points
Explanation:
Do the atoms in a mixture have a set ratio?
If 15 grams of copper (ii) chloride react with 20 grams of sodium nitrate, how many grams of sodium chloride can be formed?
Answer: approximately 6.53 grams of sodium chloride can be formed in this reaction.
Explanation: The balanced equation for the reaction is:
2 CuCl2 + 2 NaNO3 → Cu(NO3)2 + 2 NaCl
According to the balanced equation, 2 moles of CuCl2 react with 2 moles of NaNO3 to produce 1 mole of Cu(NO3)2 and 2 moles of NaCl.
Next, we can calculate the moles of CuCl2 and NaNO3 provided in the problem:
Mass of CuCl2 = 15 grams
Molar mass of CuCl2 = 63.5 + (2 x 35.45) = 134.4 g/mol
Moles of CuCl2 = Mass of CuCl2 / Molar mass of CuCl2 = 15 g / 134.4 g/mol ≈ 0.1119 mol
Mass of NaNO3 = 20 grams
Molar mass of NaNO3 = 22.99 + 14.01 + (3 x 16.00) = 85 g/mol
Moles of NaNO3 = Mass of NaNO3 / Molar mass of NaNO3 = 20 g / 85 g/mol ≈ 0.235 mol
Since the mole ratio between CuCl2 and NaCl is 2:2, the limiting reactant in this case is CuCl2 because it is present in lesser amount (0.1119 mol) compared to NaNO3 (0.235 mol).
From the balanced equation, we can see that 2 moles of CuCl2 react to produce 2 moles of NaCl. Therefore, the theoretical yield of NaCl is also 0.1119 mol.
Finally, we can calculate the mass of NaCl formed:
Molar mass of NaCl = 22.99 + 35.45 = 58.44 g/mol
Mass of NaCl = Moles of NaCl x Molar mass of NaCl = 0.1119 mol x 58.44 g/mol ≈ 6.53 grams
So, approximately 6.53 grams of sodium chloride can be formed in this reaction.
Which two statements are true about this chemical reaction that forms acid
rain?
2NO+ н,о
0-NOH-OH
0
N=0
HNO,
2
HNO,
H¬0~N=0_H~0~№=0
A. The bonds that form are between N and O in HNO2 and between
O and H in HNO3.
B. The bonds that break are between N and O in NO₂ and between H
and O in H₂O.
dy
C. The bonds that break are between N and O in HNO₂ and between
O and H in HNO3.
D. The bonds that form are between N and O in NO, and between H
← PREVIOUS
The statements about chemical reaction that causes acid rain formation are:
B. The bonds that break are between N and O in NO₂ and between H and O in H₂O.D. The bonds that form are between N and O in NO and between H and O in HNO₃.What occurs in acid rain formation?Acid rain is a type of air pollution that occurs when certain gases are released into the atmosphere and react with water, oxygen, and other chemicals to form acids. The main gases that contribute to acid rain are sulfur dioxide (SO₂) and nitrogen oxides (NOₓ).
In the chemical reaction that forms acid rain, the bonds between N and O in NO₂ break, and the bonds between H and O in H₂O also break. This is represented by statement B. Also, new bonds form between N and O in NO and between H and O in HNO₃, which is represented by statement D.
Find out more on acid rain here: https://brainly.com/question/27644323
#SPJ1
Which of the following would have the best thermal insulation properties?
A. A cotton sweater
B. A rubber rain_at
C. A down-filled coat
D. A nylon windbreaker
Answer:
C. A down-filled coat via a p e x
Thermal insulation maintains the temperature inside the system and inhibits heat transfer. A down-filled coat would have the best thermal insulation properties. Thus, option C is correct.
What is thermal insulation?Thermal insulation is the property of the substance to resist the heat and energy transfer from a substance of abundance to a lesser concentration. They lack the conducting particles.
It inhibits the heat to get transferred to other substances. The minimum heat transfer is achieved by the structural formation and the choice of the substance.
A down-filled coat is made of insulation material that keeps warm during the winters as its structure can trap and retain heat making the person warm during colds.
Therefore, option C. A down-filled coat best shows thermal insulation.
Learn more about thermal insulation here:
https://brainly.com/question/13774951
#SPJ5
will hcl (g) or nacl (s) be more soluble in the solvent ch3och3? why? multiple select question. nacl (s) will be more soluble in ch3och3. ion-dipole forces in a nacl solution are more likely to overcome solute-solute interactions than dipole-dipole forces in a hcl solution. the dipole-dipole forces in an hcl solution are similar in strength to the dipole-dipole forces between ch3och3 molecules. hcl (g) will be more soluble in ch3och3. hcl is capable of hydrogen bonding to ch3och3, whereas nacl is not.
Similar to the dipole-dipole interactions between CH3OCH3 molecules, the dipole-dipole forces in an HCl solution are quite strong. - In CH3OCH3, HCl (g) will be more soluble.
In carbon tetrachloride, which of the following chemicals is most likely to dissolve?This means that whereas non-polar solutes are more soluble in non-polar solvents, polar solutes are more soluble in polar solvents. The non-polar material will therefore be most soluble in CCl4, considering your choice of compounds.
The multiple choice question about the fundamentals of solubility asks, "How does the saying like dissolves like apply?"For a solute to be soluble, it needs to share the same polarity as the solvent. The main message is that a polar solute will dissolve in a polar solvent.
To know more about dipole-dipole interactions visit :-
https://brainly.com/question/7545068
#SPJ4
why is dilute hydrochloric acid added into distilled water?
Answer:
Explanation:
dilute hydrochloric acid is added to distilled water to increase the ionization of water.
help please!!
*8th grade science
Five friends are eating ice cream. They wondered why their metal spoons were so cold. This is what they said:
Dane: I think the cold from the ice cream was transferred to the spoon.
Alex: I think a metal spoon is a good conductor of cold.
Mayra: I think heat from my hand moves through the spoon to the ice cream.
Elise: I think it is because there is more cold than heat.
Astrid: I think it is because things made of metal are cold.
Who do you think has the best idea? Explain your thinking using your knowledge of heat transfer as well as your
knowledge of insulators and conductors.
Answer:
alex
Explanation:
I dont know how to explain it but it is alex
What is the difference between a plain and a plateau? A. Only a plain is flat, a plateau is steep mountainside. B. Both are flat, but a plateau is bordered by cliffs. C. A plain is rolling hills with cliffs, and a plateau is large flat area.
Answer:
B
Explanation:
Both plain and plateau have flat surfaces. However, a plain is located in a low-lying area while a plateau is located on an elevated area. In essence, a plateau can be viewed as an elevated plain or a plain that is bordered by cliffs.
The correct option is B.
If the solubility of sugar is 204/100 mL, how much water will be required to saturate a solution that contains 1608g of sugar?
what volume will 4.95 moles of hydrogen gas occupy at STP?
The volume that 4.95 moles of hydrogen gas will occupy at STP is 110.95L.
How to calculate volume?The volume occupied by a gas can be calculated using the ideal gas equation as follows:
PV = nRT
Where;
P = pressureV = volume n = number of molesR = gas law constantT = temperatureAccording to this question, a gas at standard temperature and pressure will have the following characteristics:
P = 1atmR = 0.0821 Latm/KmolT = 273K1 × V = 4.95 × 0.0821 × 273
V = 110.95L
Therefore, 110.95L is the volume occupied by the ideal gas.
Learn more about volume at: https://brainly.com/question/11676583
#SPJ1
What is the relationship between a white dwarf and black dwarf?
Answer:
No longer emitting heat or light, the white dwarf will become a black dwarf. Because it emits no radiation, it is nearly impossible to see. However, the black dwarf would still retain its mass, allowing scientists to detect the effects produced by its gravitational field.
Explanation:
Answer:
white dwarfs are hot, black dwarfs are cold
Explanation:
a white dwarf is a slowly burning and aging corpse of a main sequence star such as our sun. they are up to 40 times hotter then the sun, ranking among one of the hottest objects in the universe, except their luminosity is so low that all their heat stays in them basically forever.
On the other hand, a black dwarf is a theoretical ending to a white dwarf, over the course of trillions of years, white dwarfs cool down into black dwarfs. black dwarfs rank among the coldest possible temperature. We aren't sure if these are really a thing, because we still haven't given white dwarfs enough time to cool down.
ll of the following metals will corrode if immersed in fresh water except (a) copper (b) nickel (c) chromium (d) iron
All of the following metals will corrode if immersed in freshwater except chromium. Therefore, the correct answer is option (C)
The metal chromium is very resistant to corrosion and does not corrode in freshwater. Chromium is a potent oxidising agent, which means it can readily provide electrons to other substances, creating a shield of protective oxide that prevents corrosion of the metal.
The metal is protected from the atmosphere by this extraordinarily tough oxide layer, which also serves to shield the metal from further oxidation. Chromium can also create a solid connection with oxygen, which increases its resistance to corrosion.
Chromium does not interact with other chemicals in freshwater, hence it does not corrode. To maintain corrosion resistance, chromium is frequently utilised in products like plumbing fixtures, tools, and automobile components.
Complete Question:
All of the following metals will corrode if immersed in freshwater except
(a) copper
(b) nickel
(C) chromium
(D) aluminum
To learn more about Metals visit:
https://brainly.com/question/4701542
#SPJ4
Why is it important to plants and animals that photosynthesis occurs?