what is the pKa of the acid?

Q: Calculate the ratio of (conjugate base)/(conjugate acid) for an acetic acid /acetate buffer when the…

A:

Q: A weak monobasic acid is half neutralized by a strong base. If the pH of the solution is 5.4, its…

A: In the titration of monobasic acid and a strong base, Half neutralization point or Half equivalence…

Q: The pKa of a particular weak acid is 4.81. What is the pH of the weak acid solution when exactly…

A: When half of the acid has been neutralised, that means the concentration of acid remaining will be…

Q: Ammonium ion, NH4+, is a weak acid and its pKa is 9.25. (a) Write the balance chemical equation…

A: We will use weak acid concept

Q: What is the ratio of concentrations of acetate ion and undissociated acetic acid in a solution that…

A: Ethanoic acid is a weak acid and the dissociation of acetic acid is given by: CH3COOH   ⇌  CH3COO-…

Q: The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial…

A: All the details are explained in handwritten solution.

Q: The pH of a solution that is 0.5 in MA and 0.3 in HA is 5.40; determine the pKa of the acid.

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Q: Calculate the Ka of weak acid.  The initial concentration of the weak acid is 4.93 x 10-4 M.  The…

A:

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: ow does the pKa of an acid change as very electronegative atoms (such as Cl) are added to the acid…

A:

Q: In a 0.100M solution of lactic acid, the hydrogen ion concentration is 0.0036 at 25°C. Find the pH…

A: We have given the concentration of hydrogen ion  that is H+ = 0.0036 M and molarity of lactic acid…

Q: What is the [A-]/[HA] ratio when the weak acid is in a solution one pH unit above its pKa? 1:1 1:10…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: A weak base has Kp 6.5x10-6. Calculate the pKa of the conjugate acid. Express your answer to two…

A: The dissociation constant of an aqueous solution of weak acid is known as the acid ionization…

Q: weak

A: We used the Hinderson equation for calculating the concentration of salt ( NaA ) and it's acid ( HA…

Q: A solution is prepared from two weak acids, 0.2 M HA and 0.1 M HB. If the Ka of HA is 1x10-5 and the…

A: pH - It is the negative logarithm of the hydronium ion concentration of a  solution. Equilibrium -…

Q: The pka of HCN = 9.31. Which solution, when added to 10.0 mL of 0.10 M HCN, has a pH of 9.31? O 10.0…

A:

Q: What is the pH of a solution made by adding 5.0 mL of 0.80 M NaOH to a 10.0 mL solution of 1.0 M…

A:

Q: Define pKa for a weak acid. What is the relationship between the value of the pKa and the strength…

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Q: Oleic acid (which can be denoted as HOL), is a weak acid. Considering its sodium salt, sodium oleate…

A: We have to calculate the pKa of the HOL.

Q: State the fact below ? An acid can be deprotonated by the conjugate base of any acid havinga higher…

A: The formula for pka is shown below.

Q: What are the approximate pH ranges and color changes of the following dyes? Indicator pH range Color…

A: Indicators are the substance whose solution color changes due to change in pH and are called…

Q: The pKa for the first protonation of nicotine (2) is 8.02. What is the pH and the fraction of…

A:

Q: Lactic acid, CH3CH(OH)COOH, is a monoprotic acid that is present in sour milk. The pH of a 0.100 mol…

A: [H3O+]= 10-pH [H3O+]= 10-2.44 [H3O+]=3.6308 x 10-3 M

Q: 0.100M solution of monoprotic weak acid has a pH of 3.00. What is the pKa of this acid?

A: Let , weak monoprotic acid = HA  pH = 3.00  [HA] = 0.100 M

Q: When 2.0 x 10-2 mole of nicotinic acid (a monoprotic acid) is dissolved in 350. mL of water, the pH…

A: Nicotine is a weak monoprotic acid so it dissociated in less amount. So we can denotes it by HA .

Q: a 1L, 0.1M, pH = 7.4 buffer solution. The weak acid is 0.5M, pKa = 8.6. The conjugate base is 0.1M.…

A:

Q: Calculate the ratio of (conjugate base)/(conjugate acid) for an acetic acid /acetate buffer when the…

A: Using Henderson-Hasselbach equation,

Q: A 0.030 M solution was prepared by dissolving potassium valinate in 1 L of water. What is the pH of…

A: pH is defined as the negative logarithm of hydrogen ion concentration present in the solution. pH =…

Q: 3. The pH of the given solution of lactic acid and lactate is 4.30. Calculate the pKa of lactic…

A: Given,

Q: Sodium formate (NaCHO2) is used in fabric dyeing and painting process.  Formic acid is the conjugate…

A:

Q: A 0.500M solution of a weak acid has a pH of 2.251. a. What is the pKa of the weak acid?

A: Given data Concentration of weak acid : C = 0.500 M pH of solution = 2.251  We know that for a weak…

Q: pkal pK₂2 Phosphoric acid, H, PO, (aq), is a triprotic acid, meaning that one molecule of the acid…

A:

Q: Calculate the pH of a solution that is 1.8*10^-3 M morphine if the pKa of its conjugate acid is 8.21

A: We have to predict the pH of the morphine solution.

Q: How do I use the numbers given to find the masses in grams?

A: Preparation of a buffer solutionBuffer is a solution that can resist any change in its pH by the…

Q: What is the pH of a 0.639 M solution of lactic acid? The pKa of lactic acid is 3.854.

A:

Q: A weak acid HA, has a pKa of 5.0. If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in one…

A:

Q: The pKa of lactic acid is 3.86, an equimolar solution of lactic acid and potassium lactate will have…

A: Lactic acid and potassium lactate makes an acid buffer. Henderson equation is used to determine the…

Q: Codeine 1C18H21NO32 is a weak organic base. A 5.0 * 10-3M solution of codeine has a pH of 9.95.…

A: Given: Concentration of the solution=5.0×10-3M pH=9.95 To find: The pKb for the base.

Q: A weak acid, HA, has a pKa of 4.268. If a solution of this acid has a pH of 4.853, what percentage…

A:

Q: To find the pKb of the conjugate base of a weak acid, one must subtract the pKa of the weak acid…

A: Ka and Kb are the dissociation constant of weak acid and weak base respectively. pKa is the -log of…

Q: The amino acid tyrosine has pKa = 2.20 for deprotonation of its carboxylic acid group. What are the…

A: Henderson-Hasselbalch equation establishes a relationship between pH of the solution and the acid…

Q: A solution is a mixture of 0.100M weak acid and 0.020M of its conjugate base. The pH of the…

A:

Q: The pK, of a particular weak acid is 5.17. What is the pH of the weak acid solution when exactly…

A:

Q: Calculate the sodium acetate/acetic acid ratio to prepare a buffered solution with a pH of 5.06.…

A: The ratio can be found by using Henderson-Hasselbach equation: pH = pKa + log[salt][acid]…

Q: Three acids found in foods are lactic acid, LA, (in milk products), oxalic acid, OA, (in rhubarb),…

A: Answer:- This question is answered by using the simple concept of weak acid strength which is…

Q: Calculate the pKa of the weak acid HA, given that a solution that is 0.357 in HA and 1.24 in A- has…

A: Buffer solution is made of weak acid and it's conjugate base or weak base and it's conjugate acid.

Q: Caffeine is a weak base with a ?bKb of 4.1×10−44.1×10−4. Calculate the initial molar concentration…

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

Q: Calculate the degree of ionization of morphine, pKa 8.0, in a solution with a pH of 2.2. Predict how…

A: The question is placed on the concept of equilibrium. we have to identify degree of dissociation of…

Q: A weak monobasic acid is half neutralized by a strong base. If the pH of the solution is 5. 4, its…

A: The question is based on the concept of titrations. we are titrating a weak acid and a  strong base.…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".