Calculate AH° for each reaction. HO• + CH4 а. •CH3 + H20 CH;OH + HBr CH,Br + H20 b.

Q: What is the conjugate base of HPO42-? OA H3PO4 O B. PO43 H2PO4 O D.OH O E HPO4

A:

Q: Select the LEAST acidic compound from the following OH H3C OH ČN CH,OH CN CN

A: option - c is least acidic since conjugate anion or base is not well stablized and other options…

Q: Arrange the following chemical structures from MOSI to LEAST acidic and explain the reason behind…

A: Higher the oxidation state of central atom, more is the acidic nature and also so simply more the…

Q: 4. Determine the pOH given the following values: a. [H] = 2 x 10-8 b. [OH-] = 5.1 × 10-11

A: In this question we have to tell the POH of the given solution.

Q: What is the conjugate acid of HCO3? O H3O+ CO2 O CO3(2- charge) Н20 there isn't one H2CO3

A: Explanation to the correct answer is given below

Q: Which reaction below will produce significant amounts of product? The acids in decreasing strength…

A: Given that, the acids in decreasing strength are H2SO4>HNO3>H3PO4>HCN. We have to tell…

Q: The conjugate acid of HC204- is Select one: O A. H* O B. HC204* O C. HC203* O D. H2C204 O E. C20,2

A: The question is based on conjugate acid base principle.   a strong acid has a weak conjugate base…

Q: Which compound below is the stronger acid in aqueous solution? W 5.0M H2SO3 or 0.020M H2SO4…

A: To find: Which is stronger acid in solution, 5.0 M H2SO3 or 0.020 M H2SO4?

Q: Calculate the [H3O+] of 0.15 M hypobromous acid, HOBr. Ka = 2.40 x 10-9

A: Ka is acid dissociation constant. For the dissociation of acid, HA i.e HA → H+ + A-, Ka, may be…

Q: 1. Arrange the following compounds in order of increasing acidity (start with the most acidic). ÇOOH…

A: Carboxylic acids are Organic compounds with acidic nature. Alcohols are generally neutral but…

Q: An acid has a Ka = 7.77 x 10-4. Is it stronger or weaker than an acid with Ka = 7.77 x 10-3 ? A.…

A: We have to compare the acid strength.

Q: What is the conjugate acid of H2PO4-?  H3PO4  PO43-  HPO42-  HPO32-  H2PO3-

A:

Q: Which statement is correct regarding the acid-base equilibrium system below? CH . OH HN I.…

A: Answer  III   spontaneous in reverse direction because H3C-CH2-NH3+…

Q: For the reaction H20 + SO, 2 HSO, + OHT, SO4 behaves as a(n) -2 O acid O base O both acid and base…

A: We have reaction of water and SO4-2 , we have to see what sulphate ion is behaving as.

Q: Which of the following would represent the strongest acid? OK₁ = 2.5 x 10-5 O pk = 14.5 O pk = 4.60…

A:

Q: warm, (а) H. D acidic KMNO4 РСС (b) но ČH3 HBr (с) Al2O3, high T (d)

A: Given reaction are :  Complete the following reactions = ?

Q: 1. KMNO4, OH- (warm) 2. H3O* Select to Draw

A:

Q: Label the Lewis acid and Lewis base in each reaction. Use curved arrows to show the movement of…

A: According to Lewis concept of acid and bases, Lewis acid is an electron pair acceptor whereas the…

Q: но HO но он The pK, of ascorbic acid (vitamin C) is 4.17, showing that it is slightly more acidic…

A: AAn acid looses or releases proton in the aqueous solution to form conjugate base which contains…

Q: NaOEt 8. EtoH

A:

Q: Which base, CH3NH2 or (CH3)2NH, is the stronger base? Which conjugate acid, (CH3)2 NH2+ or(CH3)2…

A:

Q: 2- What is the conjugate base of HPO4 ? O H2PO4 O PO45 О НРОД- 2- O H3PO4

A: Acid is a substance which donate a proton or hydronium ion (H+) in water. For example HCl, CH3COOH.…

Q: 1 alBalance Mhe acid-base neutralicaton reaction: H3 PO4+ NaOH-7 Nag POq +H20 b) wrik the net…

A:

Q: What is the conjugate acid of HCO3 ? O A HCO3* в. Соз2- OC. CO3- D. H2CO3 O E. HCO32-

A: Bicarbonate anion is a conjugate base of carbonic acid. D option.

Q: What is the conjugate base of H3PO4? O A. H2PO42- O B HPO42- В. O C. OH OD.PO43- E H2PO4

A:

Q: For the stronger acid: Draw the resonance structures of its conjugate base a. BrCH2COOH or FCH2COOH…

A:

Q: Rank the following bases in order of strength strongest CH4 02 s2- 02- weakest

A: Given: Some compounds are given  To find: Basic strength Solution: Electronegativity of an atom…

Q: Identify the base in the following non-aqueous reaction  POCl3 + Cl- → POCl4-

A: The base in non aqueous medium is given below

Q: Which solution has the highest concentration of H3O+: a 0.50 M solution of acetic acid (CH3CO2H),or…

A: ∝=Degree of Dissociation           HA⇌        H+   + A-t=0      C            0          0t=eq…

Q: Show the progress of the reactions below with curved arrows. What kind of reactions are these? Show…

A:

Q: If an acid solution has a concentration of 0.10 M and a pH of 2.5, what is the [H1+]?And what is the…

A:

Q: 10. Which is the conjugate acid in the following reaction? :CH3 H20 CH4 Но + II II IV А) І B) II C)…

A:

Q: Choose the stronger acid in each of the following pairs:(a) H₂Se or H₃As (b) B(OH)₃ or Al(OH)₃(c)…

A: To answer this question, one should know what an acid is. A substance which can give protons when…

Q: What is the conjugate acid of HAsO4-2?   H3O+ H2AsO4- H3AsO4 H3As AsO4-3

A: A conjugate acid contains one more hydrogen atom and one more positive charge than the base that…

Q: What is the conjugate acid of HСОЗ ? O A. HCO32- O B. H2CO3 В. OC. CO3- O D. CO32- O E. HCO3+

A: conjugated acid is substance that is form when a base receive a proton ( H+ )

Q: In acidic solution, ________. Select one: A. [H3O+] = [OH-] B. [H3O+] = 0M C. [H3O+] < [OH-]…

A: The pH is the negative logarithm of hydronium ions. The pH determines the acidity or alkalinity of a…

Q: In this reaction below, the conjugate base of ethanoic acid is H3C-C H20 H3C-C H30 O-H О н20 О нзо+…

A: Note: As per our guidelines, we are supposed to answer only the first question when multiple…

Q: What is the concentration of OH- in 0.1863 M HNO2 ?

A: Given :- initial concentration of HNO2 = 0.1863 M  ka = 4.600 × 10-4  To calculate :- [OH-]

Q: 4. Watter verbinding (i of ii) is die sterker basis? Bespreek jou antwoord volledig deur o.a. h suur…

A: Strong base:- A Lewis base have capacity to donate its lone pair electrons.

Q: 5. Identify the Bronsted acid and the Bronsted base in both sides in each reaction below: a. CH,OH +…

A: Bronsted acid is the substance which donates protons in the reactions. And Bronsted base is the…

Q: 17.Which is the conjugate acid in the equation? HSO4 + H2o = S04-2 + H30+ А. HSO4 В. H30+ С. so4-2…

A: A conjugate acid, within the Brønsted–Lowry acid–base theory, is a species formed by the reception…

Q: Given that Ka for acetic acid is 1.8 * 10-5 and that for hypochlorous acid is 3.0 * 10-8, which is…

A: The given problem deals with acidic strength comparison on the basis of value of Dissociation…

Q: 5. For each of the following pairs of substances, identify the conjugate bases for each one and…

A: conjugate base is the substance formed when an acid loses a hydrogen ion. Considered a base because…

Q: Hydrochloric acid and sodium hydroxide СМЕ: НС (аq) + NaOH (aq) → NaCl(aq) + H2O(1) CIE: H* + Cl- +…

A: Interpretation: We have to write complete molecular , ionic and net ionic equations.

Q: what is the dissociation reaction for the compound below in an aqueous solution? write NR after the…

A: CH3OH is a weak acid. Hence it dissociates in negligible amount in aqueous solution.

Q: major pro Tollowing reaction? O- OH CH,Cl2 HO он но, || II IV

A:

Q: 8b AgCls) + NH3(aq) (15M) -> * CaClzaq) + NH3(aq) +1 O NH.Claq), + NaOH(aq)

A: Here we have to determine the incorrect net Ionic equation from the following chemical reactions.

Q: What is the conjugate acid in the forward reaction?                     A. HF B. H3O+ C. H2O D. F -

A: According to Bronsted-Lowry Concept acid is defined as the substance which has tendency to give H+…

Q: In a basic solution at 25°C, Oa. [H3O+]> [OH]. O b. [H3O+][OH-] 1.0 × 10-7. O d. [OH-]> 1.0 × 10-7.…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.