A buffer solution is 0.486 M in NaH2PO4 and 0.394 M in Na, HPO4. If Ka for H2PO4¯ is 6.2 × 10¬8, what is the pH of this buffer solution? pH

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

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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 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: Vhat is the pH of a solution containing 0.2 M citric acid (pKa = 5.4) and 0.1 M sodium citrate?

A: Introduction: Since having sodium citrate that is a buffer solution so we can use the…

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: What is the pH of a 0.220 M solution of sodium cyanide (NaCN)? Ka for HCN is 4.9 x 10-9.

A: NaCN has one less hydrogen and corresponds to a conjugate base (a weak base). The credentials…

Q: A solution is prepared that is initially 0.0010 M NaOH and 0.10 M NH3. What is the pH of this…

A: [NaOH] =0.001 M [NH3] = 0.10M

Q: Calculate the pH of a solution that is 1.314 M HF, 0.442 M NaOH, and 0.719 M NaF. For HF K = 7.2 x…

A: Here we have NaOH which is a strong base and will completly dissociate on reacting with HF.

Q: | Calculate the pH of a solution which is 0.345 M NHẠCI. (Kô of NH3 = 1.80 x 105)

A: Introduction: An acid is defined as substance which can donate protons and base which can accept…

Q: A buffer solution is prepared in which the concentration of pyruvic acid, HC;H3O3, is 0.300 M and…

A: The solution given is a buffer solution of monoprotic pyruvic acid and its conjugate base pyruvate.

Q: The pH of a 0.45 M solution of a weak acid, HA, is 2.13. What is the value of Ka for the weak acid?

A: Given data,pH=2.13Molarity of HA=0.45

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: you mix 100. mL of 0.11 M HCl with 50.0 mL of 0.22 M NH3, what is the pH of the resulting solution?…

A: Volume of HCl=100.0mL Concentration of HCl=0.11M Volume of NH3=50.0mL Concentration of NH3=0.22M For…

Q: If 0.090 mole of solid NaOH is added to 1.0 liter of 0.180 M CH;COOH, what will the pH of the…

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Q: If the Ka of a monoprotic weak acid is 3.7×10−6, what is the pH of a 0.39 M solution of this acid?

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Q: HCIO is a weak acid (Ka 4.0 x 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a…

A: Given data; Ka=4×10-8Also, Kw=Ka×KbAnd,Kw=1×10-14 Consider the dissociation of given weak acid as;…

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

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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: What is the pH of a buffered solution that is 0.12 m lactic acid (HC3H5O3) AND 0.10 m sodium…

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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: 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 0.410 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: If 34.6 mL of a 0.68 M NaOH solution is added to a 51.9 mL sample of a 0.68 M weak acid, HA , what…

A: 34.6 mL of a 0.68 M NaOH solution is added to 51.9 mL sample of a 0.68 M weak acid, HA (ka = 1.8 x…

Q: Calculate the pH and ionization percentage of a solution of 4.7 = PKa 0.2 molarity of ammonium…

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Q: Malonic acid, HOOC CH2 COOH, can be used in a buffer system. What is the pH of a solution that…

A: A system containing Na+ -OOC CH2 COOH and Na+ -OOC CH2 COO-Na+ will act as as acidic buffer solution…

Q: What is the pH of the resulting buffer solution when 25mls of 0.10 M NaH is added to 25mls of 0.200…

A: pH of the buffer solution is calculated by using Henderson equation, it is,

Q: The acid ionization constant for a certain monoprotic acid (HA) is 1.57×10−4. What is the pH of a…

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Q: Calculate the pH of the weak acid, lactic acid (HC3H5O3), if the concentration is 0.10 mol/L and the…

A: Given data,Molarity of lactic acid=0.10mol/LKa of lactic acid=1.4×10-4

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: A 0.15M solution of a weak base has a pH of 9.08. What is Kp for this weak base?

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Q: 20 ml of 0.2 M NaOH solution be treated with 40 ml of 0.2 M acetic acid solution to give 60 ml.…

A: An acidic buffer is defined as an aqueous solution that consists of a mixture of a weak acid and its…

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: A 1.0 M solution of a weak acid, HA has a pH of 2.64. What is the value of Ka for this acid?

A: The acidic strength of all known acids is dependent on their dissociation constants. This constant…

Q: A buffer solution is 0.328 M in H₂C2O4 and 0.275 M in NaHC204. If Ka for H₂C₂O4 is 5.9E-2, what is…

A: In this question, we need to determine pH of the solution. Here given the values of concentration of…

Q: What is the pH for a weak monoprotic acid if a 0.020 M solution of the acid has a Ka of 3.28 x 10-7…

A: The H3O+ concentration for the weak acid is determined given below:

Q: Provided that a chemist prepared a 1.00 M acetic acid solution (HC2H3O2) wherein he found out that…

A: The weak acids are those that partially dissociate in aqueous solution to give protons. The pH is…

Q: A solution prepared by mixing 1.73 of propionic acid (HC3H5O2) and 0.53 g of NaOH in water (Ka…

A:

Q: The Ka for cyanic acid HOCN is 3.5 x 10-4. What is the pH of a 0.37 M solution of the acid? What is…

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Q: If 10 mL of 0.1 M hypothetical acid, HA, is added with 10 mL of 0.1 M of the salt of its conjugate…

A: Answer: The mixture of acid HA and its conjugate base XA will be a buffer solution.

Q: Calculate the pH of a 0.10-M solution of aluminum chloride, which dissolves completely to give the…

A: The hydration of aluminum chloride to furnish [Al(H2O)6]3+ ion is expressed as follows:…

Q: The pH of a 0.55 M aqueous solution of hypobromous acid, HBrO, at 25oC is 4.48. What is the value of…

A: The concentration of HBrO solution = 0.55 M. pH of aqueous HBrO solution = 4.48.

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: The pH of a 0.16 M solution of a weak acid, HA, is 2.85. What is the value of Ka for the weak acid?

A: The question is based on the dissociation of weak electrolyte. We  have been given a weak Acid which…

Q: A buffer solution is 0.416 M in H2 S and 0.245 M in NaHS. If K for H2S is 1.0 x 10-7, what is the pH…

A: This question is checking our basic concept regarding "Handerson - Hasselbalch equation".  We have…

Q: A 0.100 M solution of an acid, HA, has a pH = 1.52. What is the KA value for this acid?

A: Calculate the concentration of hydronium ion:

Q: The pH of a 0.800 M aqueous solution of a weak acid is 1.99. What is the value of Ka for this acid?

A: Given  pH = 1.99 Concentration (c) = 0.800 M Ka =?

Q: A solution is prepared by adding 0.10 mol of sodium fluoride, NaF, to 1.00 L of water. What is the…

A: Answer: pH of the solution is 8.09.

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: A buffer solution is 0.402 M in NaH2PO4 and 0.318 M in Na2HPO4. If Ka for H2PO4- is 6.2 x 10 -8,…

A: The solution has NaH2PO4 which will dissociate completely into ions Na+ and H2PO4-  Hence…