Which is the conjugate base in this reaction? Pyridinium- acetic acid Pyridine H ion -oH pka =4.76 pKa= 5.25 A acetic acid B) acetate ion pyridine D pyridinium ion

Q: The species that act as bases in the following reaction are: H2SO4 + HNO3 = H2NO3 + HSO4 1 2 4 3

A: There are several theory to define acid and base and one of the theory is Bronsted Lowry  theory

Q: 5. Identify the acid-base conjugate pairs in each of the following reactions: (а) СНЗСОО- + HCN…

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Q: Phenol, C6H5OH, has a Ka of 1.3 x10-10.(a) Write out the Ka reaction for phenol.(b) Calculate Kb for…

A: Phenol is an aromatic alcohol.  The Ka value of phenol is given as 1.3×10-10.

Q: aniline

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Q: acids/bases)Distinguish between strong/weak and concentrated/dilute:

A: Acids are the substance which are sour in taste.   Bases are the substances which are   bitter in…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

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Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: Values of ka and pKa can be calculated from given one of the value using the relation between them…

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: What is the weak conjugate base in the following reaction?                 CCl3COOH + H2O CCl3COO-…

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Q: Rank the conjugate bases of each group of acids in order of increasing basicity. a.NH3, H2O, CH4…

A: (a)

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: Ka is known as acid dissociation constant. Larger the value of pka, lesser is the acidic strength.

Q: 2. What is [OH-] in a solution of 0.125 MCH3NH₂ and 0.130 MCH3NH3CI? CH3NH2(aq) +H₂O) CH3NH3(aq) +OH…

A: Given: The concentration of CH3NH2 = 0.125 M The concentration of CH3NH3Cl = 0.130 M Kb = 4.4×10-4…

Q: he weakest base below is   1.2 M barium hydroxide   0.12 M potassium hydroxide   0.012 M calcium…

A: Strong bases are those bases which ionize completely in their aqueous solutions. The degree of…

Q: 10. The Kb of pyridine (C5H5N) is 1.8 x 10-9. What is the Ka of pyridine's conjugate acid?

A: The reaction as follows,

Q: Which of the following compounds is the conjugate base in the following reaction? H2SO3(aq) + H20(1)…

A: The compound to which an acid donates a pair of electrons is acts as a base. The conjugate base is…

Q: Which of the following two acids has the stronger conjugate base? Nitrous acid, Ka = 7.1 x 10–4…

A: The solution is provided below:

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

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Q: Select the stronger base from each pair (in aqucous solution): NH2 NH2 (a) HyC (2) NH2 or NH (2) NH3…

A: (a) Compound (2) is stronger base than compound (1). Reason: Aliphatic amine ( compound 2 ) is more…

Q: List the bases from strongest to weakest Ammonia, Kb=1.8x10^-5 Dimethylamine, kb= 5.4x10^-4…

A: Kb…

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

A: The compound which is rich in electrons is called as Lewis base. It donates electrons to Lewis acid…

Q: For each value of Ka, calculate the corresponding value of pKa. Which compound is the stronger acid?…

A: pKa of any acid can be calculated as: pKa=-logKa Ka is dissociation constant of an acid. Larger the…

Q: In the following reaction: NH, (aq) + H,0(aq) = NH,(aq) + H,0 (aq) Select one: O a. H,0 is a base…

A: A number of scientists put forward theories to explain the acidic and basic nature of the…

Q: JO () (1) JO JO но JO HO (a) (4) (a) JO HO (a) (6) (p) H. 6.46 For each pair which is the stronger…

A: As you not specified so I am giving answer of first three  question as per guidlines A) basicity is…

Q: CH3 o 11 HgC-C-C Ha C-C CH3

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Q: H2O                                                        HCN (Ka = 6.2 x 10-10)      HCl (Ka >…

A: Answer : the order of acidic strength:  HCl >HF>H2O>HCN .

Q: You need to make a buffer whose pH is 7.0, and you can choose from the weak acids shown. Briefly…

A: An acid is defined as the chemical substance that loses protons or hydrogen ion to the solution. A…

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

A: The base in non aqueous medium is given below

Q: In the following reactions, label the Lewis acid and Lewis base. Predict the products of the…

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Q: Using the data in the table, which of the conjugate bases below is the weakest base? Ка 1.8 x 10-5…

A: According to Bronsted-Lowry concept, the acidic and basic character of a compound can be interpreted…

Q: Ka = 3.5 x 10-8 reaction between formic acid (HCO2H) and a solution containing hypochlorite ions…

A: Reaction is HCO2H + ClO- ---> HClO + HCO2- A) Name of conjugate base =Formate B) name of…

Q: In each pair, select the stronger acid. Q.) Pyruvic acid (pKa 2.49) or lactic acid (pKa 3.08)

A: Ka is the acid dissociation constant. Therefore, higher the value of Ka, higher is the acidity.  pKa…

Q: The table shows four bases and their base dissociation constants. Base ammonia 1.8 x 10-5 ethylamine…

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

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Q: Identify the base in this reaction: H2SO4 (ag) + 2 NaOH(ag) → Na2 S04 (ag) + 2 H200 Na2SO4 (aq) O…

A: Bases are the substance which gives hydroxide ion (OH-) in aqueous solution. The given reaction is,…

Q: 12. Which is the conjugate acid in the following reaction? HCI H20 II II IV A) I B) II С) I D) IV…

A: Bronsted-Lowry concept for acid and base:  A substance is acid which donates hydronium ion and a…

Q: Any conjugate acid of a weak base has a Ką value that is less than 1.0 x 107 at 25 °C. Select one: O…

A: We can solve this question by applying one of the commonly know concept of acid and base called as…

Q: Which is the strongest base? A) acetate ion B) benzoate ion C) salicylate ion D) hypochlorite ion

A: Among all these 4, the hypochlorite ion is the strongest base.

Q: relationship between the value of pKa and the strength of a weak acid

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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: Identify each of the following compounds or chemical species as a Lewis acid, base, or neither.…

A: A Lewis acid is any chemical species that can accept a pair of non-bonding electrons whereas a Lewis…

Q: 1-Select the conjugate acid for the weak base CH3CH2NH2 a) NH4+ b) CH3CH2NH- c) CH3CH2NH3+ d)…

A: Conjugate acid :  When a base gets one H+ ion from the other elements , it becomes and acid which is…

Q: Which of the following compounds has the most stable conjugate base? 2-Fluoropropionic acid…

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Q: Draw the products that would form in the reaction below. Then label each product as either the…

A: A conjugate acid is formed when a proton is added to a base, and a conjugate base is formed when a…

Q: In each pair, select the stronger acid. Q.) citric acid (pKa1 3.08) or phosphoric acid (pKa1 2.10)

A: Acidic strength of an acid is directly proportional to its dissociation constant (Ka ) value . pKa =…

Q: 6 Identify the conjugate base of HSO4- in the reaction H2PO4 + HSO, → H3PO4 + SO42- www

A: We have given that   H2PO-4 + HSO-4 -------> H3PO4 + SO2-4

Q: HCN+NH−2↽−−⇀CN−+NH3

A: Reaction HCN+NH2- → CN-+ NH3According to bronsted lowry theory in  an acid base reacrion acid is a…

Q: Identify which of the acids below will yield the stronger conjugate base and why.  a) HOCl (K a =…

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Q: NaCHO2 (the conjugate base)?  Ka of HCHO2 = 1.8 x 10-4

A: It is the acidic buffer s olution,  Acidic buffer contains weak acid and its conjugate base.  Ka =…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: ->pKa = -log Ka  ->Ka tells about acid strength ->Ka proportional to acid strength ->pKa…

Q: The following reactions all have K<1. 1) HCOO (aq) + HCN (aq) HCOOH (aq) + CN" (aq) 2) CN (aq) +…

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