The Kb for dimethylamine, CH3NH2, at 25oC is 4.0×10-4. What’s the Ka of its conjugate acid?

Q: Calculate the pH of a 1.22×10-2 M solution of the decongestant ephedrine hydrochloride if the pKb of…

A: The pH of the decongestant ephedrine hydrochloride can be calculated as

Q: The base protonation constant K, of lidocaine (CH, NONH) is 1.15 × 10 °. 8- 14 Calculate the pH of a…

A: Lidocaine being a weak base , dissociates partially in water. The dissociation is lidocaine in water…

Q: Calculate the pH of a 1.01×10-2 M solution of the decongestant ephedrine hydrochloride if the pKb of…

A: Given:Molarity = 1.01×10-2 MpKb of ephedrine = 3.86we need to Calculate the pH.

Q: The base protonation constant K, of azetidine (C,H¸NH) is 1.5 × 10 °. 8- Calculate the pH of a 0.80…

A:

Q: Calculate the pH of a 0.100 M solution of alanine prepared from the form shown below. pKa (-COOH) =…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. Calculate [A]/ [HA] ratio of phosphoric acid species presents in blood at pH=7.4. Identify…

A: Henderson Hasselbach equation is used in the preparation of a buffer.  pH = pKa + log [base][acid]…

Q: The base protonation constant K, of allantoin (C,H,N,O,NH,) is 9.12 x 10. Calculate the pH of a 1.3…

A: Reaction: C4H4N3O3NH2 + H2O ⇌ C4H4N3O3NH3+ + OH-    Kb of allantoin = 9.12×10-6  Concentration = 1.3…

Q: Phosphoric acid (H3PO4) is tribasic, with pKa's of 2.14, 6.86, and 12.4. The charge of the ionic…

A: Given: pKa's of phosphoric acids are 2.14, 6.86 and 12.4. And the pH of the solution = 8

Q: The Ka of a weak acid is 3 x 10^-12 What is the pKa of this acid?

A: Ka which is dissociation constant of acid is given  3*10^-12  Pka = ?

Q: The base protonation constant K of azetidine (C,H,NH) is 1.5 x 10 Calculate the pH of a 0.70 M…

A:

Q: Which structure best represents the protonation state of the amino acid cycteine at a pH-value of 7?…

A: option C is correct because at ph 7 which is neutral ph, the amino acid will present in zwitter…

Q: What is Ka for the conjugate acid of HONH₂ (Kb = 1.1 × 10⁻⁸)?

A: ↳ using this formula . ka×kb=kw Given value kb=1.1×10-8 kw=1×10-14 ka=?  ka×kb=kw ka= kwkb     =…

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10 °. Calculate the pH of a 0.44 M…

A:

Q: What is the acid dissociation constant Ka for its conjugate acid? If the base dissociation constant…

A: Conjugate acid of hypochlorite ion is,

Q: What is Kb for the conjugate base of HNO2 (Ka = 4.5 × 10-4)?

A: Relationship between Ka, Kb, and Kw. Ka×Kb=Kw Kw=1.0×10-14 So, Kb=1.0×10-14Ka

Q: One way to determine the predominant species at equilibrium for an acid-base reaction is to say that…

A: The given data is:

Q: the Ka for acetic acid is 1.8x10^-5. What is the pKa of this weak acid?

A:

Q: What is the ionization constant at 25 C for the weak acid (CH3)2NH2+, the conjugate acid of the weak…

A: The given solution contains a weak acid and a weak base.

Q: Which of the following statements is/are correct at 25 °C? 1. Benzoate (C,H;O2) requires a Ka to…

A: To determine pH we need Ka or Kb value. Which among Ka or Kb is used depends on the nature of…

Q: If the Ka of the conjugate acid is 7.68 × 10-4 , what is the pKb for the base?

A: Applying relationship between ka and kb Ka× kb= Kw

Q: A student determines that the value of Ka for H2CO3 = 5.7×10-7 . What is the value of pKa?

A:

Q: Calculate the pH at 25°C of a 0.64M solution of anilinium chloride C6H5NH3Cl. Note that aniline…

A: The pKb of C6H5NH2 is 4.87. The pKa of C6H5NH3+ is calculated using equation (1).

Q: Draw the products formed from the following acid-base pairs, using approximate pka values to predict…

A:

Q: Estimate the pH and percentage of dissociation of 0.010 M CH3CH(OH)COOH(aq) (lactic acid). pKa of…

A: For a weak acid:                                     HA           =            A-        +       H+…

Q: Calculate the pH of 0.045 C5H5N (Pyridine) K_b= 1.7 x 10^-9 for C5H5N

A: We will ionize pyridine , then draw ICE table to calculate pH of solution.

Q: Calculate the pH of a 0.0200 M solution of ibuprofen (isobutylphenylpropionic acid, C,2H17COOH)…

A:

Q: The Kb for ethylamine (C2H5NH2) is 5.6 x 10-4. What is the pH of a 0.020 M solution of ethaylamine?

A: The reaction is –              C2H5NH2 + H2O↔C2H5NH3+ + OH-I                 0.02…

Q: Draw the amino acid proline with the biologically preferred stereochemistry and ionization state at…

A: An amino acid are molecule which has acid COOH and basic NH2 group . Thus it is  amphoteric in…

Q: The pKb for the propanoate ion, CH3CH2CO3 , is 9.126. What is the value of Ka (NOT the pKa) for…

A: Given-> pKb of CH3CH2COO- = 9.126

Q: The base protonation constant K, of allantoin (C,H,N;03NH,) is 9.12 × 10 °. Calculate the pH of a…

A: Given:

Q: determine the ph ef sogh of a suffer 6-SM etofi- chloine sul of l,072X106

A: pKa = 5.97 pH = 5.27 Explanation:

Q: The base protonation constant K of azetidine (C²H²NH) is 1.5 × 10¯8. Calculate the pH of a 0.39 M…

A: The base protonation constant Kb of azetidine C3H6NH is 1.5 × 10-8 .We have to calculate the pH of…

Q: Acid A with ka 3.5 x 10-5 is more acidic than acid B with ka 6.5 x 10-6

A:

Q: the pH value of an aqueous solution of trimethylamine [(CH3)3N] is 10.75, what should the molarity…

A: Answer  Calculate molerity C = ?

Q: Determine the pH of a 0.10 M solution of sodium acetate (CH3COONa) at 25°C. (Ka of acetic acid = 1.8…

A:

Q: Consider two acids: CH;CO,H (benzoic acid, pK, = 4.2) and CH,CO,H (acetic acid, pK,= 4.8). Which…

A: According to Bronsted-Lowry concept  Acid is a substance which donates proton to other and forms its…

Q: The Kb of a weak base, Z, is 3.75 x 10−12.  What is the Ka for its conjugate acid, HZ+?

A:

Q: At 25 °C the pk, for methylammonium, NH3CH3*, is 10.64. What is the pK, for its conjugate base? Оа.…

A: pka for acids and pKb for bases . For it refers to the conjugate pair.    The relationship between…

Q: The Ka of formic acid (HCHO) is 1.8 x 10^-4. Calculate the pH with 0.15 M potassium formate (KCHO).…

A: The reaction of an acid with a base will result in the formation of salt and water. The salt formed…

Q: What is Ka for the conjugate acid of C₅H₅N (Kb = 1.7 × 10⁻⁹)?

A: Kw is ionization constant for water . Ka and kB ionization constant for Acid and base respectively…

Q: Calculating the pH of a weak base solution The base protonation constant K, of morpholine (C,H;ONH)…

A: Given, Kb of morpholine (C4H8ONH) = 2.14 × 10-6 Concentration of morpholine (C) = 1.3 M pH = ? Note:…

Q: A 2.5 M solution of formic acid (HCOOH) has a pH of 1.67. What is the pK, of the formate ion…

A: Welcome to bartleby ! We have to calculate pKb

Q: HE Which of the following protons has the lowest pKa? Hc Hg Ho 1. Ha 2. Hb 3. Hc 4. Hd 5. He

A: The proton has lowest pKahas to be indentified

Q: If the Ka of the conjugate acid is 4.39 × 10-8 , what is the pKb for the base?

A: Acid dissociation constant  (Ka) and base protonation constant (Kb) can be mathematically expressed…

Q: The base protonation constant K, of trimethylamine ((CH,) N) is 6.31 × 10 °. 3 Calculate the pH of a…

A:

Q: The base protonation constant K, of allantoin (C,H,N,0,NH,) is 9.12× 10¯°. 9. 4 Calculate the pH of…

A: Given information: Concentration = 1.3 M

Q: If an acid has a Ka of 2.12 x 10-3, what is its pKa?

A:

Q: What is Ka for the conjugate acid of HONH2 (Kb = 1.1 × 10-8)?

A: For a conjugated acid-base pair, the product of Ka and Kb is known as Kw. where K_\text{w}Kw​ is…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.