If a buffer solution is 0.260 M in a weak base (Kb=8.4×10−5) and 0.480M in its conjugate acid, what is the pH?

Q: If a buffer solution is 0.230 M in a weak acid (Ka = 3.4 x 10-3) and 0.410 M in its conjugate base,…

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Q: 6. A buffer solution is formed by adding 0.500 mol of sodium acetate (CH3CO2NA) and 0.500 mol of…

A:

Q: When 0.412 g of a weak base with Kb = 3.10 ×10-5 the base is dissolved in 1.00 L of solution, it has…

A: Assuming the molar mass is M  Hence moles of base = mass / molar mass = 0.412 / M And concentration…

Q: ) If 5.0 mL of 0.100 M NaOH is added to 100.0 mL of a 0.0500M phosphate buffer solution at pH 7.2,…

A: A solution which resists the change in pH when a small amount of acid or base is added to it,  is…

Q: If a buffer solution is 0.120 M in a weak acid (Ka = 5.4 x 10-) and 0.480 M in its conjugate base,…

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Q: Two acids are mixed in solution: 0.20 M of HBr and 1.50 M of HBRO (Ka = 2.3 x 10-9). What is the…

A: HBr is a strong acid while HBrO is weak acid and therefore, the resulting pH will be due to HBr,…

Q: If a buffer solution is 0.170 M in a weak base (Kb = 4.2 × 10-5) and 0.490 M in its conjugate acid,…

A: Buffer solution: It is an aqueous solution which contains a mixture of a weak base and its conjugate…

Q: If a buffer solution is 0.200 M in a weak base (Kp = 6.4 x 10-) and 0.480 M in its conjugate acid,…

A: Again.     pH= 14 - pOH Using these two formula pH of the solution can be calculated.

Q: If a buffer solution is 0.240 M in a weak base (Kp = 5.5 x 10-) and 0.510 M in its conjugate acid,…

A: Henderson Hasselbalch equation is given by, pOH = pKb+log[conjugate acid][weak base] pKb is the…

Q: If a buffer solution is 0.280 M in a weak base (K, = 5.7 x 10-5) and 0.450 M in its conjugate acid,…

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

Q: A buffer solution is 0.478 M in H3PO4  and 0.362 M in NaH2PO4 . If Ka1 for H3PO4  is 7.5 x 10^-3 ,…

A: According to the Henderson Hasselbalch equation is given by, Ph = Pka + log ([salt] / [acid] ) The…

Q: How many mL of a 5.0-M solution of sodium borate must be added to a 200-mL solution of 50 mM boric…

A: Pka of boric acid = 9.14    Cl+ consider x ml  5.0 M sodium borate is  required.   PH  = Pka +…

Q: If the Ka of a monoprotic weak acid is 7.8×10−6, what is the pH of a 0.47 M solution of this acid?

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Q: Acid rain is due to the dissolution of sulfur oxide (SO3) present in contaminated areas in the…

A: The reactions taking place are-

Q: If a buffer solution is 0.150 M in a weak base (K, = 3.5 × 10-5) and 0.430 M in its conjugate acid,…

A: The Henderson- Hasselbalch equation can be used for the for the evaluation of pOH of the buffer…

Q: 1. A buffer solution is 0.200 M in HC,H;O2, a monoprotic acid, and 0.200 M in NaCH,O2. K, for the…

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Q: If a buffer solution is 0.160 M in a weak acid (Ka = 2.1 × 10-5) and 0.580 M in its conjugate base,…

A: The question is about calculating the pH of a buffer solution with the given data -

Q: If a buffer solution is 0.300 M in a weak acid -5, (K = 2.6 x 10) and 0.470 M in its conjugate base,…

A: The Henderson-Hasselbalch equation is given as,

Q: You have a 0.189 M solution of propanoic acid.  You add enough sodium propanoateto make the solution…

A:

Q: If a buffer solution is 0.170 M in a weak base (?b=3.7×10−5) and 0.540 M in its conjugate acid, what…

A: In question it is not mentioned whether the base is monoprotic or polyprotic. Hence assuming it to…

Q: If the Ka of a monoprotic weak acid is 5.8 x 10-6, what is the pH of a 0.12 M solution of this acid?

A: Negative logarithm of Concentration of [H+] ion present in the solution is known as pH of the…

Q: The conjugate base, A⁻ of a certain weak acid, HA has the molar mass 67.997 g/mol. What mass of this…

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Q: If a buffer solution is 0.560 M in a weak acid (Ka=5.3×10−6) and 0.120 M in its conjugate base, what…

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Q: If a buffer solution is 0.290 M in a weak base (K, = 1.4 × 10-5) and 0.580 M in its conjugate acid,…

A: pH of the buffer solution is determined by the Henderson-Hasselbalch equation as shown below: pH =…

Q: What is the pH after 15.0 mL of 0.200 M HCl has been added to 100.0 mL of a buffer solution, X, with…

A: Given that,  Concentration of 100 mL weak base X solution = 0.70 M Moles of X in 100 mL buffer =…

Q: If a buffer solution is 0.410 M in a weak acid (K, = 5.9 x 10-6) and 0.210 M in its conjugate base,…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: An aqueous solution of 0.057 M weak acid, HX, has a pH of 4.65. What is the pH of the solution if…

A: A buffer solution is made with a weak acid and its conjugate base, such solution resist the change…

Q: If a buffer solution is 0.140 M in a weak base (K, = 5.6 x 10-) and 0.400 M in its conjugate acid,…

A:

Q: Calculate the pH of a buffer solution that is 2.00 M in phosphoric acid and 1.50 M in potassium…

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Q: If the K of a monoprotic weak acid is 1.8 x 10-6, what is the pH of a 0.35 M solution of this acid?

A: Given: Ka of weak monoprotic acid (Assuming HA) = 1.8 × 10-6  And the concentration of HA = 0.35 M

Q: If a buffer solution is 0.230 M0.230 M in a weak base (?b=7.4×10−5)Kb=7.4×10−5) and 0.540 M0.540 M…

A: we have to calculate the pH of the given buffer solution

Q: When 32.3 mL of 0.100 M Ba(OH)2 is mixed with 197.2 mL of 0.200 M HCl, the reaction goes to…

A: The reaction result in the formation of Barium chloride. The pH of a solution is the negative…

Q: How many grams of dry NH4C1 need to be added to 2.50 L of a 0.800 M solution of ammonia, NH3 , to…

A: NH3 + NH4Cl forms a basic buffer. For a basic buffer:  pOH = pKb + log c2/c1 pH + pOH = 14

Q: If the K, of a weak base is 3.9 x 10-6, what is the pH of a 0.48 M solution of this base?

A: Kb- is a dissociation constant of weak base. Formula is, pOH - pOH is defined as negative logarithm…

Q: If the K of a monoprotic weak acid is 1.4 x 10-6, what is the pH of a 0.14 M solution of this acid?…

A: Given : Ka of monoprotic acid (assuming HA) = 1.4 X 10-6  And Concentration of acid = 0.14 M Since…

Q: The Ka of a weak monoprotic acid is 1.85 x 10-5. What is the pH of a 0.0761 M solution of this acid?

A: First, we have calculated the concentration of [H+] with the help of Ka and the concentration of the…

Q: Consider the titration of a strong acid, HClO4, with a strong base, KOH. What is the pH of the…

A: Given: 20.0 mL of 0.150 M HClO4  30.0 mL of 0.125 M KOH.

Q: What is the pH of a sodium acetate (NaCH3CO2) solution prepared by adding 0.820 g of sodium acetate…

A: Given: Mass of sodium acetate = 0.820 g Volume of water             = 100.0 mL Ka of acetic acid…

Q: A buffer solution is 0.389 M in H3PO4 and 0.351 M in NaH PO4. If Kal for H3PO4 is 7.5 x 10°, what is…

A: The given data is as follows:  The concentration of H3PO4 = 0.389 M The concentration of NaH2PO4 =…

Q: If a buffer solution is 0.100 M in a weak acid (K, = 5.7 x 10-5) and 0.530 M in its conjugate base,…

A: We have  0.1 M of weak acid of Ka 5.7*10-5 . Concentration of conjugate base as 0.53 M We have to…

Q: If a buffer solution is 0.210 M0.210 M in a weak acid (?a=5.0×10−5)Ka=5.0×10−5) and 0.490 M0.490 M…

A:

Q: If a buffer solution is 0.200 M in a weak base (K = 1.9 x 10-5) and 0.420 M in its conjugate acid,…

A: A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate…

Q: The acid ionization constant for a certain monoprotic acid (HA) is 4.52×10−5. What is the pH of a…

A: Given data,Ka=4.52×10-5Molarity of HA=0.35

Q: If a buffer solution is 0.270 M in a weak acid (Ka = 7.5 x 10) and 0.570 M in its conjugate base,…

A:

Q: If a buffer solution is 0.300 M in a weak base (K₁ = 8.7 x 10-5) and 0.400 M in its conjugate acid,…

A:

Q: If a buffer solution is 0.240 M in a weak acid (Ka = 3.8 x 10-5) and 0.530 M in its conjugate base,…

A: Introduction Henderson - Hasselbalch equation gets used to calculate the pH for any buffer solution…

Q: If a buffer solution is 0.260 M in a weak acid (K, = 5.3 × 10-5) and 0.470 M in its conjugate base,…

A: This question is based on the prior knowledge of the Handerson Hasselbach equation which determines…

Q: If the KbKb of a weak base is 1.6×10−6,1.6×10−6, what is the pH of a 0.18 M0.18 M solution of this…

A: Concentration of the solution is 0.18 M. Kb = 1.6 x 10-6 The Ka value is calculated by following…

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.