the dissociation constant of formic acid, HCOOH, with concentration 0.1M and pH 2.38 is: a) 1.8 × 10-⁴ b) 18 × 10-⁴ c) 0.9 × 10-⁴ d) 9 × 10-⁴

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

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

Q: Ex.2 What is the millieqquivalent wt of each of the ff subst acting as bases with complete…

A: The formula for equivalent weight is: Equivalent weight = Molecular weightTotal charge on action or…

Q: For a weak acid HA in aqueous solution, the dissociation reaction is expressed as: HA (aq) + H2O (l)…

A: The acid ionization of a weak acid, HA is given asThe weak acid, HA differs from a strong acid in…

Q: Calculate the Kb for the weak acid of Ka = 3.1 x 10-8. Calculate Ka for the weak base of Kb = 6.5 x…

A:

Q: • Calculate the pH of water sample with hydrogen ion concentration of 3.16 * 10-8 mols/L • Calculate…

A: pH = - log [H+]

Q: EXAMPLE 9-8 Calculate the hydronium ion concentration in a solution that is 2.0 X 10-4 M in aniline…

A: The Equilibrium Reaction of hydrolysis of C6H5NH3+  given in the question is -   C6H5NH3+  + H2O…

Q: Calculate the pH and pOH of a 1.00 × 10-3 M solution of acetic acid (Ka = 1.75 × 10-5

A: We know                 CH3COOH + H2O ⇌H3O++CH3COO-t=0                 C                 -…

Q: (Q11) lodic acid (HIO3) is a relatively strong weak acid (Ka = 0.17). What will be the equilibrium…

A:

Q: A solution that is 6.0×10−2 M in potassium propionate (C2H5COOK or KC3H5O2 ) and 8.0×10−2 M in…

A: A solution given is 6.0×10−2 M in potassium propionate (C2H5COOK or KC3H5O2) and 8.0×10−2 M in…

Q: If the acid dissociation constant, Ka, for an acid HA is 8 x 10-4 at 25°C, what percent of the acid…

A: Given; Acid Dissociation constant (Ka) = 8 x 10-4. Concentration (c) = 0.5 M.

Q: Calculate the basic dissociation constant for pyridine, C5H5N, if the acid dissociation constant for…

A: Given that, Ka =5.9×10-6  Kb= ?

Q: 2. What concentration of HF is needed for a sol'n to have a pH = 2.43 @ 25°C? Acid ionization…

A:

Q: Criven ka = 2.5×10-9 Find the pH at a 0.724 M Savetion of the weak Jose bese Bro- ?

A:

Q: (10 pts) What is the Kg of an acid HA if the pH of a 0.150 M solution NaA has a measured pH 8.52? 9.

A: Molarity of NaA solution = 0.150 M Measured pH = 8.52 From the relation, pOH is calculated as,

Q: The Ka for acid HA is 7.0 x 10-4. What is the pH of a 0.15 M aqueous solution of KA?   Answer…

A: pH is used to determine the concentration of hydronium ion.

Q: -3 The pH value of a (0.062 + 0.002) mol dm HCI solution is: Select one: 1.21 0.11 1.21 1 1.21 0.01…

A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…

Q: HF is considered a weak acid .Calculate the pH of an aqueous solution of 0.850 M HF (K₁ = 7.10 x…

A:

Q: Chemistry The Ka of propanoic acid (C2H5COOH) is 1.34×10-5. Calculate the pH of the solution and the…

A: Given-> Ka = 1.34 × 10-5 concentration of propanoic acid = 0.543 M

Q: a) Calculate the percent ionization of 0.00490 M hypobromous acid (Ka = 2.5e-09). % ionization =…

A: a) Given: Concentration of hypobromous acid i.e. HBrO = 0.00490 M And Ka of HBrO = 2.5 × 10-9  Since…

Q: 11) Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in…

A:

Q: The base protonation constant K, of azetidine (C;H,NH) is 1.5 × 10-8. Calculate the pH of a 0.31 M…

A: The pH of the solution can be determined by using ICE table and equilbrium expression for the given…

Q: Calculate the molar concentration of OH- in a 0.075 M solution of ethylamine 1C2H5NH2; Kb = 6.4 *…

A: Given,  Concentration of C2H5NH2 = [C2H5NH2] = 0.075 M  Base dissociation constant of C2H5NH2 = Kb…

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

A:

Q: What is the fraction of association (a) for each potassium propionate solution? The Ka of propanoic…

A:

Q: A weak base has K, = 2.4 x 10-4 at 25°C. By adding a strong acid to solution, there is an acid-base…

A: Weak base = B Kb = 2.4×10-4

Q: Ammonia is a weak base (Kb = 1.8 x 10-5). What is the pH of 1.2 M ammonia? 2.33 4.74 9.26 10.14…

A: Given, Concentration of the ammonia (C) = 1.2 M Kb  for Ammonia (NH3) = 1.8 × 10-5 Note: Ammonia…

Q: ) Calculate the percent ionization of 0.00780 M hydrocyanic acid (Ka = 4.9e-10). % ionization =  %…

A: Ka for HCN= 4.9 x 10-10

Q: Your answer is correct. The value of K for the C4H7O₂ ion is 6.7 x 10-10. What is the value of K₂…

A:

Q: Q1//A solution of 0.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

A:

Q: Given: k₂₁ = 1.1 x 10-² K₂2 = 1.1 x 10-º; K₂ = 1.1. x10-16. The acid will be: Tetraprotic Triprotic…

A: Ka is known as acid dissociation constant.

Q: IP wc dissolve an a cid weak HzA in wate, the solution volume willbe looml, and its pH=27 if you…

A: The question is based on the concept of chemical equilibrium. We have to calculate mass of the acid…

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

A:

Q: - 10 The acid dissociation constant K, of boric acid (H,BO,) is 5.8 × 10 *°. a Calculate the pH of a…

A: Given - Dissociation constant =5.8×10-10 Concentration of boric acid =4.9 M To calculate - pH of 4.9…

Q: What is the pH of 0.62 M methylammonium bromide, CH3NH3Br? The Kb of CH3NH2 is 4.2 x 10-4. (value ±…

A:

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong basc. Calculate…

A:

Q: Calculate the Ka of an acid, HX, whose ionization is 31% when CHX= 0.60 M (Note that the %…

A:

Q: Calculate the [H3O+] and [OH−] in a saturated solution of calcium hydroxide. (Ksp=4.7×10-6)

A: The chemical equation is given by, CaOH2(aq)⇔Ca(aq)2++2OH(aq)- (Ksp=4.7×10-6)

Q: The pH of 0.25 M methylamine is 11.98 at 25 °C. The [OH-] at equilibrium is given below. What is the…

A:

Q: Case 3: pH with known K: The dissociation of ammonia (NH3) in water is shown below: NH3 (aq) + H2O…

A:

Q: Calculate the pH of an aqueous solution that is 3.24 x 10-1 M oxopropanoic acid and 0.101 M sodium…

A: A buffer solution is a type of solution which can resist the pH change when small amount of acid or…

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

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

Q: A weak acid has a Ka of 4.9 *10^-5. Determine the pH of a 0.55M solution of that weak acid.

A:

Q: - 10 The acid dissociation constant K, of boric acid (H,BO, is 5.8 × 10 °. Calculate the pH of a…

A: To find pH

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

A: Use pH formula, used to calculate the pH of salt formed by weak acid and strong base to find the…

Q: For a 0.0448 M aqueous solution of aniline, C6H5NH2 (Kb = 7.4E-10), determine the following. Kw =…

A:

Q: What is the pH of a 0.040 M solution of benzoic acid (Ka = 6.3 × 10-5) at 25ºC?

A: Given : Concentration of benzoic acid i.e C6H5COOH = 0.040 M And Ka of C6H5COOH = 6.3 X 10-5  Since…

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

A: molarity of the solution = 0.1 M The pH of the solution  = 9.5

Q: Q1//A solution of o.1 M of BX salt with pH=9.5, the HX is weak acid and BOH a strong base. Calculate…

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

Q: Aniline is a weak organic base with a Kbof 4.17 x 10-10. Find the pH of a 0.373 M aqueous solution…

A: Base - A base is a substance that can accept hydrogen ions or basically they can release -OH ions.…

Q: The hypothetical weak acid H2A ionizes as shown below. Calculate the [HA-] in 0.20M H2A. H2A ↔ H+ +…

A: Given:  The initial concentration of H2A = 0.20 M Ka1 = 1× 10-7 Ka2 = 5×10-11