Draw the highest energy transition state in the solvolysis of (ch3)3c-i in ch3oh
Answers
The highest energy transition state in the solvolysis of [tex](CH_{3} )_{3} CI[/tex] in [tex]CH_{3} OH[/tex] is given as ,
The mechanism of solvolysis of tert-butyl iodide follow nucleophilic substitution reaction . The nucleophilc substitution reaction are two types one unimolecular and second bimolecular nucleophilc substitution .
The mechanism of solvolysis of tert-butyl iodide follows unimolecular nucleophilic substitution reaction in which carbocation is the intermediate which as a transition state of it. The carbocation formed by solvolysis of tert-butyl iodide is 3° carbocation or tertiary carbocation which is most stable. The methanol as neutral nucleophile and oxygen of methanol attack at carbocation intermediate.
Therefore , the highest energy transition state in the solvolysis of [tex](CH_{3} )_{3} CI[/tex] in [tex]CH_{3} OH[/tex] is given .
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Related Questions
Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction?
(A) Ir + O₂--> IrO₂
(B) 4 Fe + 3 0₂---> 2 Fe₂O3
(C) I+ 0₂ ---> 10₂
(D) 3 Ir + 0₂ -> 6 Ir₂03
Select one:
O a. A
Ob. B
O C. C
O d. D
Answers
Answer:
B. 4 Fe + 3 0₂---> 2 Fe₂O3
Explanation:
(A) Ir + O₂--> IrO₂ No: Ir is iridium
(B) 4 Fe + 3 0₂---> 2 Fe₂O3 Yes: Fe is iron and O is oxygen, and the equation is balanced.
(C) I+ 0₂ ---> 10₂ No: I is iodine
(D) 3 Ir + 0₂ -> 6 Ir₂03 No: I is iodine
Adding heat to a substance group of answer choices sometimes does not result in a temperature change. always results in a temperature increase. sometimes results in results in a temperature decrease.
Answers
Sometimes adding heating of substance set of answer options does not cause a change in temperature. resulting in an increase in temperature every time. results occasionally in a drop in temperature.
A substance's atoms and molecules move more quickly when it is heated. Whether the substance is a solid, liquid, or gas, this occurs. However, the temperature does not always rise when more heating of substance is added. For instance, adding heat to boiling water will not raise its temperature. This occurs when the heating of the substance reaches its boiling point, which is for all vaporizable substances. The average kinetic energy of the molecules will fluctuate when a system gains or loses heat. So long as a phase shift is not taking place, heat transfer causes a change in the system's temperature.
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The chemical equation of photosynthesis includes 6o2. which best describes this substance?
Answers
The chemical equation of photosynthesis includes 6[tex]O_{2}[/tex]. -----a gas produced during photosynthesis best describes this substance
Elaborate:
During photosynthesis plants use carbon dioxide, water and sunlight to make sugar (glucose) and a waste product, oxygen gas.
the equation of this process can be:
6 [tex]CO_{2}[/tex] + 6 [tex]H_{2} O[/tex] + light energy → [tex]C_{6} H_{12} O_{6}[/tex] + 6 [tex]O_{2}[/tex]
carbon dioxide + water + light → glucose + oxygen
Is 6[tex]O_{2}[/tex] a product of photosynthesis?
In photosynthesis, energy from light is used to convert carbon dioxide and water into glucose and oxygen. For 6 carbon dioxide and 6 water molecules, 1 glucose molecule and 6 oxygen molecules are produced.
What happens to sugar water oxygen and carbon dioxide during photosynthesis?
During photosynthesis, plants take in carbon dioxide and water from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
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What are the atomic number and atomic mass number of fluorine atoms with nine protons and ten neutrons
Answers
Answer:
Atomic Number = 9
Mass Number = 19
Explanation:
The atomic number is the total amount of protons in an atom's nucleus. Therefore, if a fluorine atom has 9 protons, the atomic number is 9.
The mass number is the total amount of protons and neutrons in an atom's nucleus. Therefore, if a fluorine atom has 9 protons and 10 neutrons, the mass number is 19 (9 + 10 = 19).
Which pair of reactants will undergo aldol condensation to produce methylvinyl ketone?
Answers
When formaldehyde and acetone then react with each other( aldol condensation) then it will be formed methyl vinyl ketone.
In organic chemistry, an aldol condensation would be a condensation reaction in which an enol and enolate ion combines with a carbonyl chemical to produce a -hydroxy aldehyde or -hydroxy ketone, that is then dehydrated to produce a conjugated enone.
In aldol condensation, when formaldehyde and acetone then react with each other then it will be formed methyl vinyl ketone.
It can be written as
[tex]CH_{2} O + CH_{3} COCH_{3}[/tex] → [tex]HOCH_{2} -CH_{2} -CO-CH_{3}[/tex]
When it will be heated then it gives methyl vinyl ketones.
[tex]HOCH_{2} -CH_{2} -CO-CH_{3}[/tex] → [tex]CH_{2} =CH-CO-CH_{3}[/tex]
So, the pair of reactants will be formaldehyde and acetone
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A 1. 477 g sample of khp required 30. 27 ml of naoh solution to reach endpoint. Calculate the molarity of the NaOH.
Answers
The molarity of the NaOH is 0.238 M when 1. 477 g sample of KHP required 30. 27 ml of NaOH solution to reach endpoint.
Calculation ,
Mass of KHP = 1. 477 g
Number of moles of KHP = given mass / molar mass of KHP
Number of moles of KHP = 1. 477 g × 1 mol / 204.23 g KHP = 0.007 mol
Since , one mole KHP requires one mole of NaOH .
Number of moles of NaOH required by 0.007 mol of KHP = 0.007 mol
Molarity of NaOH = number of moles / volume in lit = 0.007mol/0.03027ml = 0.238 M
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An average speed for a time interval is 40 km/hr. Which is the correct time interval?
(2,20) to (4,100)
(2,20) to (4,80)
(2,20) to (3,100)
(1,20) to (3,80)
Answers
The correct time interval is (2,20) to (4,80).
What is the average velocity?The average velocity is defined as the velocity or speed of the body throughout the period of motion under consideration. This will always span the entire journey. Recall that velocity is the ratio of distance covered to time taken. The average velocity spans the entire journey and differs from the instantaneous velocity which occurs at a particular point along the journey.
Now we know that the average distance is obtained as the sum of the initial and final velocity multiplied by time and divided by two. Bear in mind that the question already contains the information that we have been told that the average velocity here is 40 km/hr. We can clearly see from the forgoing that the correct time interval is (2,20) to (4,80).
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What locally acting chemicals are derived from arachidonic acid? multiple choice question. peptide hormones prostaglandins corticosteroids neurotransmitters
Answers
Prostaglandins locally acting chemicals are derived from arachidonic acid.
What does arachidonic acid produce?
Arachidonic acid is then quickly transformed into active metabolites, including prostaglandins, prostacyclin, and thromboxanes by cyclooxygenases and leukotrienes by lipoxygenases Page et al (2006). These metabolites' physiological effects are numerous and varied.Is prostaglandins a local hormone?
Prostaglandins are the most diversified group of eicosanoids and are believed to be produced in the majority of bodily tissues. This particular local hormone activates the inflammatory response and pain receptors.What is arachidonic acid found in?
Arachidonic acid can be found mainly in the fatty parts of meats and fish (largely red meat), so vegetarians usually have lower levels of arachidonic acid in the body than those with omnivorous diets. There is a great deal of controversy about arachidonic acid.Learn more about Prostaglandins
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2.04 thermal and chemical change
Answers
Explanation:
thermal changes are those in which heat exchange is involved like endothermic and exothermic
while in chemical changes collision between the reactant occurs which result into product
What is the value of k for this aqueous reaction at 298 k?298 k? a b↽−−⇀c dδ°=10. 35 kj/mol
Answers
The value of k for this aqueous reaction at 298 k a b↽−−⇀c dδ°=10. 35 KJ/mol is 30.37 mol.
What is K?
K is the song which is used to donate the equilibrium of a reaction and the equilibrium of the reaction can only be obtained when the concentration of reactant is equal to the concentration of the product.
K is also known as the equilibrium constant.
δG or dδ° = - R T In K
R = universal gas constant
T = 298 k or 24.4Celciuss
dδ°= 10. 35
substituting the value in the equation
10. 35 = - 8.313 × 24.4 celcius In k
In k = - 8.313 × 24.4 celcius / 10. 35
In k = 30.37 mol.
Therefore, the value of k for this aqueous reaction at 298 k a b↽−−⇀c dδ°=10. 35 KJ/mol is 30.37 mol.
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When a nonmetal bonds with a nonmetal: When a nonmetal bonds with a nonmetal: a molecular compound forms. a covalent bond is involved. electrons are shared. all of the above are true none of the above
Answers
When a nonmetal bonds with a nonmetal, a covalent bond is involved. Details about non-metals can be found below.
What is a nonmetal?A nonmetal is an element, such as phosphorus or chlorine, that does not have the chemical or physical properties of a metal.
A metal is known to lose or donate electrons when it goes into a reaction, hence, an electrovalent bond is usually formed.
However, a nonmetal is known to accept or gain electrons when it goes into reactions. This means that when two nonmetals bonds in a chemical reaction, a covalent bond is formed between them.
Covalent bond is a type of chemical bond where two atoms are connected to each other by the sharing of two or more electrons.
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A sample 0. 100 moles of a gas is collected at at stp. What is the volume of the gas in liters?
Answers
A sample 0. 100 moles of a gas is collected at at STP . 2.24 is the volume of the gas in liters.
The STP means standard temperature and pressure.
At STP,
Temperature = 0 °C =273 K
Pressure = 1 atm
We get value of volume by using ideal gas equation,
PV = nRT
P is the pressure of the gas = 1 atmV is the volume occupied by the gas = ?n is the number of the moles = 1 moleT is the temperature of the gas = 273 K or 0 °CR universal gas constant = 8.31 J/ mole × KCalculation,
Since, one mole of a gas occupy 22.4 L volume at STP
So, for 0.1 mole volume occupy = 22.4L × 0.1 mole/1 mole = 2.24L
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List 4 major types of inhibition modes and clearly indicate the effect on vmax and km for each mode?
Answers
The 4 major types of inhibition are Competitive Inhibition, Non-competitive Reversible Inhibition, Non-competitive Irreversible Inhibition, and Uncompetitive Inhibition.
Types of inhibition modes:1. Competitive Inhibition: Competing inhibitors are substances that resemble an enzyme's natural substrate so closely that they vie for the active site. In order to stop additional reactions, the inhibitor binds to the active site and stays there.
The inhibitor and substrate fight for the enzyme's active site because the enzyme may react with the inhibitor and release the products as it normally would with its substrate
2. Non-competitive Inhibition:
Reversible: There is no competition in this instance because the inhibitor and substrate are not related. The substrate and the inhibitor may mix at various places of the complexes of the enzymes [E-I], [E-S], and [E-I-S].And in the Michaelis equation, this kind of inhibition lowers V max but has no impact on Km.The rate at which the enzyme is fully saturated is given by V = V max [S] / Km + [S] (V max).
(Km): The substrate is the Michaelis constant, at which the reaction rate is halved, or at V maximum.
Irreversible: These kinds of inhibitors impact the chemical alteration of an amino acid residue in the enzyme that plays a function in catalysis when they join with the enzyme nearby or at the active site.Additionally, this kind of inhibition lowers Vmax but has no impact on Km.
3. Uncompetitive Inhibition: is the last type, where the inhibitor attaches to the [E-S] complex to create [E-S-I] even if it has no affinity for the enzyme.
However, this kind of inhibition lowers both Vmax and Km.
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A(n) ________ is a fixed number of atoms held together by chemical bonds in a certain spatial arrangement.
Answers
Answer:
Molecule
Explanation:
What is the value of for this aqueous reaction at 298 k? a b↽−−⇀c dδ°=20. 46 kj/mol
Answers
The value for this aqueous reaction at 298 k? a b↽−−⇀c dδ°=20. 46 KJ/mol is 9.91 mol. in equilibrium
What is an aqueous reaction in equilibrium?When a chemical reaction happens at the liquid state and the formation of reactant and product is the same then the reaction is known as an aqueous reaction in equilibrium denoted by K.
δG = − R T ln
R = universal gas constant 8.313
δG= 20. 46 kj/mol
T = 298 k or 24.4 in celcius.
substituting the value in the equation.
20. 46 kj/mol = 8.313 × 24.4 in celcius × K
K = 8.313 × 24.4 in celcius / 20. 46 kj/mo
k = 9.91 mol .
Therefore, The value of this aqueous reaction at 298 k? a b↽−−⇀c dδ°=20. 46 KJ/mol is 9.91 mol. in equilibrium
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Why do the planets in our solar system orbit in approximately the same plane around the sun?
Answers
http://curious.astro.cornell.edu/about-us/57-our-solar-system/planets-and-dwarf-planets/orbits/242-why-do-all-the-planets-orbit-in-the-same-plane-intermediate
Calculate the concentration of clo2− at equilibrium if the initial concentration of hclo2 is 2. 25×10^−2 m.
Answers
The concentration of ClO₂⁻ at equilibrium if the initial concentration of HClO₂ is 0.0654.
What is concentration?The concentration of any substance is the quantity of that substance in per square of the space or container.
The reaction is
HClO₂ + H₂O <=> H₃O⁺ + ClO₂⁻
The pH is 0.454 M
Ka = [H₃O⁺][ClO₂⁻ ] / [HClO₂]
2. 25 × 10⁻² m = [x][x] / 0.454-x]
2 + 0.011 - 0.004994 = 0
solve the quadratic equation
x = 0.0654 = [H3O+] = [ClO2-]
pH = -log (H3O+)
pH = -log(0.0654)
pH = 1.2
equilibrium concentrations of
[HClO2] = 0.454 -x = 0.454 -0.0654 = 0.3886 M
[ClO2- ] = x = 0.0654
Thus, the equilibrium concentrations is 0.0654.
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Based on your experience, which reactions are likely to be self-sustaining? check all that apply. an engine with pistons rising and falling. burning gasoline in a car engine a pan full of eggs floating in water. hard-boiling an egg a space ship launch. thrusting a rocket into space
Answers
The reactions which are likely to be self-sustaining from my experience among the choices above is burning gasoline in a car engine a pan full of eggs floating in water
What is self sustaining?Self sustaining simply means a condition in which one is able to continue in a healthy state without an external support outside assistance.
So therefore, the reaction which are likely to be self-sustaining from my experience among the choices above is burning gasoline in a car engine a pan full of eggs floating in water
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3) During a chemical reaction, atoms are ________. A) destroyed B) created C) rearranged D) destroyed and created
Answers
Answer: C- rearranged
Explanation:
Answer:
C
Explanation:
If a hydrogen atom has its electron in the n = 3 state, how much energy in ev is needed to ionize it?
Answers
The energy of the hydrogen atom will be -0.85 ev.
Ionization, also known as ionization, would be the phenomenon by which an atom or molecule gains or loses electrons to acquire a negative and positive charge, frequently in conjunction with those other chemical changes. Ions are the name for the electrically charged molecular or atom that results.
These chemicals are known as ionic compounds, with table salt serving as an example. Ionization would be the process of removing electrons from such an element as well as a molecule as well as the dissociation of an ionic material, such as salt, itself into the individual ions in a solution like water.
The energy of hydrogen atom will be calculated by using the formula:
[tex]E_{n} = -13.6 ev / n^{2}[/tex]
where, [tex]E_{n}[/tex] = energy of nth level, n is the state.
It is given that, n = 3 .
Now put the value of n in above equation.
[tex]E_{4} = -13.6 ev / 4^{2}\\E_{4} = -13.6 ev / 16\\E_{4} = -0.85 ev[/tex]
Therefore, the energy of the hydrogen atom will be -0.85 ev.
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URGENT PLEASE HELP
In an experiment, hydrochloric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was formed during the reaction. A cross drawn at the base of each flask became gradually invisible due the formation of this yellow precipitate. The time taken for the cross to become invisible was recorded. A partial record of the experiment is shown.
Experimental Record
Flask Volume of
HCl Volume of
Sodium Thiosulfate Volume of
Water Time
1 10 mL 10 mL 40 mL 14 seconds
2 10 mL 20 mL 30 mL
3 10 mL 30 mL 20 mL
4 10 mL 40 mL 10 mL
Based on your knowledge of factors that affect the rates of chemical reactions, predict the trend in the last column of the experimental record. Use complete sentences to explain the trend you predicted. You do not have to determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs.
Answers
The trend will be such that the time taken for the cross to disappear will be increasing.
Rate of reactionsThe rate of reactions is affected by the concentration of reactants. The more concentrated the reactants are, the more the rate of the reaction, and vice versa. This is based on the condition that all other factors are kept constant.
In the illustrated reaction, the volume of sodium thiosulfate decreases downward while the volume of water increases. This means that the sodium thiosulfate gets more diluted as we move downward.
Thus, the reaction rate will keep decreasing. In other words, more time would be needed for the cross to disappear as the concentration of sodium thiosulfate decreases.
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The theoretical yield of a reaction is 75.0 grams of product and the actual yield is 42.0 grams. What is the percent yield?
Answers
The theoretical yield of a reaction is 75.0 grams of product and the actual yield is 42.0 grams. The percent yield of the reaction is 56 %.
What is Theoretical yield and Actual Yield ?The amount can be produced from the correct computation is called Theoretical Yield.
The actual amount which is produced in the experiment is called Actual Yield.
How to calculate the percentage yield ?To calculate the percentage yield use the formula
[tex]\text{Percentage Yield} = \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \times 100 \%[/tex]
Here,
Actual yield = 42 grams
Theoretical yield = 75 grams
Put the value in above expression we get
[tex]\text{Percentage Yield} = \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \times 100 \%[/tex]
[tex]= \frac{42\ g}{75\ g} \times 100 \%[/tex]
= 56 %
Thus from the above conclusion we can say that The theoretical yield of a reaction is 75.0 grams of product and the actual yield is 42.0 grams. The percent yield of the reaction is 56 %.
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Calculate the molality of a sulfuric acid solution containing 24. 4 g of sulfuric acid in 198 g of water
Answers
Answer:
1.26 m
Explanation:
The molality equation looks like this:
Molality = moles solute / mass solvent (kg)
In this case, sulfuric acid is the solute and water is the solvent. To calculate the molality, you need to (1) convert grams solute to moles solute (via molar mass), then (2) convert grams solvent to kilograms solvent, and then (3) calculate the molality.
(Step 1)
Molar Mass (H₂SO₄): 2(1.008 g/mol) + 32.065 g/mol + 4(15.998 g/mol)
Molar Mass (H₂SO₄): 98.073 g/mol
24.4 grams H₂SO₄ 1 mole
----------------------------- x ------------------------ = 0.249 moles H₂SO₄
98.073 grams
(Step 2)
198 grams H₂O 1 kg
------------------------- x ---------------------- = 0.198 kg H₂O
1,000 grams
(Step 3)
Molality = moles solute / mass solvent
Molality = 0.249 moles H₂SO₄ / 0.198 kg H₂O
Molality = 1.26 m
Why is 15 m acetic acid an appropriate solvent in which to perform rate studies of electrophilic bromintations?.
Answers
Acetic acid activates the bromine and makes it a better electrophile.
What is bromination?
When a substance undergoes bromination, bromine is added to the compound as a result of the chemical reaction. After bromination, the result will have different properties from the initial reactant.
Why is 15M acetic acid used as a solvent for bromination?DCM (dichloromethane) requires more time. Acetic acid has protons that can give one of the Br (bromine) a positive charge and activate it. There is a brief loss of aromaticity that calls for high energy activation.
Refer to the attached image for bromination reaction.
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The bromine is activated by acetic acid, which improves its electrophilic properties.
What is meant by bromination?When a material gets brominated, the chemical reaction causes bromine to be added to the compound. The outcome will differ from the initial reactant in terms of its properties after bromination.Why is 15M acetic acid employed as a bromination solvent?DCM (dichloromethane) takes longer to process. One of the Br (bromine) atoms can be activated by the protons in acetic acid, which can give it a positive charge. Short-lived loss of aromaticity necessitates high-energy activation.For the reaction of bromination, refer to the attached file.To learn more about electrophilic bromination visit:
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Write the mass of a neutron without using scientific notation and powers of ten. Include units in your answer.
{not a bot question} {physical science 1110}
Answers
The mass of a neutron without using scientific notation and powers of ten. The mass of a neutron is slightly greater than the mass of a proton, which is 1 atomic mass unit (AMU).
Particle Symbol Mass (amu)
proton p+ 1
electron e− 5.45 × 10−4
neutron n0 1
A neutron is an atom with the atomic number 10. Its atomic mass is 20.179, resulting in 10 neutrons and 10 protons in the nucleus, and 10 electrons outside. Neon; Neon, Ne is a colorless noble gas and also the second lightest noble gas. Neutron and proton masses are 1.0087 amu and 1.0073 amu respectively.
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Please Help!!!
You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask containing CO₂(g) at 30.0°C and 750. torr. The solid BaO and MgO in the flask completely reacted to form BaCO₃(s) and MgCO₃(s), respectively. After the reactions to form BaCO₃(s) and MgCO₃(s) were completed, the pressure of CO₂(g) remaining was 115 torr, still at 30.0°C. Calculate the mass of BaO(s) in the initial mixture in grams. (Assume ideal gas behavior).
Answers
By the use of stoichiometry, the mass of BaO in mixture is 0.06475 g.
What is the mass of BaO?From the question;
V = 3.50 LT = 303 K P = 750 torrMass of BaO in the mixture = x grams
Mass of MgO in the mixture = (6.35 - x) grams
Number of moles of CO2 initially present;
PV = nRT
= ((750/760) × 3.50) / 0.0821 × 303
n= 0.139
Number of moles of CO2 at the end;
n= PV /RT
= ((245/760) × 3.5) / 303 × 0.0821
= 0.045 mole
Amount of CO2 reacted;
= 0.139 - 0.045
= 0.044 mole
Now;
amount of reacted CO2 = ( amount of BaO + amount of MgO)
amount of BaO in mixture = x / 153 mole
amount of MgO in mixture = 6.35 - x mole / 40
Hence;
= x/ 153 + 6.35/40 = 0.094
= x/153 + 6.35 / 40 - x/40 = 0.094
= x (1/40 - 1153) = (6.35/40 - 0.094)
= x × 10.018464
= 0.06475 g
Hence, the mass of BaO in mixture is 0.06475 g.
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A buffer containing 0.2000 m of acid, ha, and 0.1500 m of its conjugate base, a−, has a ph of 3.35. what is the ph after 0.0015 mol of naoh is added to 0.5000 l of this solution?
Answers
After 0.0015 mol of NAOH is added to 0.5000 l of this solution, the pH is 3.37.
StepsFirst, modify the Henderson-Hassle-batch equation to find the acid's pka.
[tex]pH=pka + log\frac{[A]}{[HA]}[/tex]
[tex]pka = pH-log\frac{[A]}{[HA]}[/tex]
[tex]=3.35- log \frac{[0.1500]}{[ 0.2000 ]}[/tex]
[tex]pka =3.47[/tex]
Molarity of the added NaOH.
[tex]M=\frac{mol}{L}[/tex]
[tex]=\frac{0.0015 mol}{ 0.5000L}[/tex]
= 0.003 M
In water, NaOH will dissociate
[tex]NaOH- > Na^{+} + OH^{-}[/tex]
strong base OH will react with HA
HA+ OH --> [tex]H_{2} O[/tex] + A
the reaction also produced A. as, all OH are consumed in the reaction
HA will be decreased by 0.003 M and A will be increased by 0.003 M.
[tex]HA= 0.2000-0.003 \\= 0.1970[/tex]
[tex]A=0.1500+0.003=0.1530 M[/tex]
solving new pH using pka and the new values of [HA] and [A]
[tex]pH=pka + log\frac{[A]}{[HA]}[/tex]
[tex]=3.35 + log\frac{[0.1530]}{[0.1970]}[/tex]
pH=3.37 is the ph after 0.0015 mol of naoh is added to 0.5000 l of this solution
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Cellular respiration release co2 and photosynthesis absorbs co2. these two reactions are part of which biogeochemical cycle?
Answers
The metabolic process that takes place in an organism's cells is called cellular respiration. Both photosynthesis and cellular respiration contribute carbon dioxide to the biogeochemical cycle.
What is biogeochemical cycle?
The mechanism that distributes and circulates abiotic chemical elements among the various realms of the planet is known as the biogeochemical cycle. The carbon, water, nitrogen, phosphorus cycle, etc. are all included.
Carbon dioxide is released during cellular respiration as a waste gas into the atmosphere, where it is then taken by plants to produce energy, which is then utilized by the organism, which then releases more carbon dioxide. The ecological chain's carbon cycle continues from the producer to the consumer.
Therefore, the carbon cycle is influenced by photosynthesis and cellular respiration.
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What substance is produced at the cathode during the electrolysis of a mixture of molten calcium bromide, cabr2(l)cabr2(l), and molten magnesium iodide, mgi2(l)mgi2(l)? assume standard conditions
Answers
Mg (Magnesium) is produced at the cathode during the electrolysis of a mixture of molten calcium bromide, CaBr₂ (l) and molten magnesium iodide, MgI₂ (l).
What is Anode and cathode ?The anode in the cell has been the negative electrode and attracts the positive ions in the solution. The cathode has been the positive electrode, and attract negative ions.
What is Electrolysis of Calcium Bromide ?In electrolysis of Calcium bromide, Calcium will form at the cathode and Bromine will form at the anode.
The reaction is as follows:
2Br⁻ (aq) → Br₂ (g) + 2e⁻
What is Electrolysis of Magnesium Iodide ?In electrolysis of magnesium Iodide, Magnesium will form at the anode Iodine will form at the cathode.
The reaction is as follows:
2I⁻ (aq) → I₂ (g) + 2e⁻
Thus from the above conclusion we can say that Mg (Magnesium) is produced at the cathode during the electrolysis of a mixture of molten calcium bromide, CaBr₂ (l) and molten magnesium iodide, MgI₂ (l).
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The human eye has an osmotic pressure of 8. 00 atm at 37. 0 °c. what concentration (in moles/l) of a saline (nacl) solution will provide an isotonic eyedrop solution?
Answers
0.3147 concentration (in moles/l) of a saline (NaCl) solution will provide an isotonic eyedrop solution.
Isotonic eye drops
Because it might result in eye discomfort or tissue damage if it is not maintained, isotonicity is regarded as a crucial component of ophthalmic medicines. A few drops of blood are mixed with the test preparation before being examined and judged under a microscope at a magnification of 40. Isotonic solutions are those that have the same amount of water and other solutes in them as the cytoplasm of a cell. Since there is no net gain or loss of water, placing cells in an isotonic solution will not cause them to either shrink or swell.
We can calculate the osmotic pressure exerted by a solution using the following expression.
π = M . R . T
where,
π is the osmotic pressure
M is the molar concentration of the solution
R is the ideal gas constant
T is the absolute temperature
The absolute temperature is 37 + 273 = 310 K
π = M . R . T
8 = (X mol/L) . (0.082atm.L/mol.K) . 310 K = 0.3147 mol/L
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