5.0 mL of 0.40 M solution NaOH is added to a 85. mL buffer solution of a containing HNO2 and KNO2 with the concentration of HNO2 0.11 M and that of KNO2 0.062. What is the concentration of the NaOH in the resulting solution after it is added to the buffer? 0.062 0.078 0.084 0.022 0.0

Q: A buffer solution contains 0.338 M NaH₂PO4 and 0.304 M K₂HPO4. Determine the pH change when 0.088…

A: Henderson-Hasselbalch equation gives the relation between the pH of acids and their pKa values. It…

Q: Which of the following mixtures will result in a buffer solution? a. 0.1 M NH, and 0.1 M CUOH b. 0.1…

A: Buffer is a solution that resist the change in pH. Buffer is formed by a weak acid and its conjugate…

Q: The function of a buffer is to   act as a strong acid         maintain a neutral pH         be a…

A:

Q: Determine the pH at the point in the titration of 40.0 mL of 0.200 M H2NNH2 with 0.100 M HNO3 after…

A: Henderson's equations enable the calculation of the pH of buffer solutions prepared by mixing known…

Q: Part B The pH of the buffer solution in part A is 4.13. 17.5 mL of 3.78x102 mol L- NaOH solution was…

A: Handerson hasselbalch equation was applied for the pH of buffer solution

Q: 47. Four solutions of unknown HCl concentration are titrated with solutions of NaOH. The following…

A: Given , HCI is titrated with NaOH solution.

Q: A buffer solution contains 0.361 M CH3NH3Cl and 0.221 M CH3NH₂ (methylamine). Determine the pH…

A: The objective of this question is to determine the change in pH of a buffer solution when a certain…

Q: A buffer solution is made that is 0.481 M in HCIO and 0.481 M in NaCIO. If K, for HCIO is 3.50 x…

A:

Q: A 20.00 mL of of the following acid solutions is to be titrated to the equivalence point using a…

A:

Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a) To…

Q: The pKa of hypochlorous acid is 7.530. A 58.0 mL solution of 0.126 M sodium hypochlorite (NaOCI) is…

A: According to the question, we have pka = 7.530 The volume of NaOCl = 58 ml Concentration of the…

Q: The pKa of hypochlorous acid is 7.530. A 58.0 mL solution of 0.126 M sodium hypochlorite (NaOCI) is…

A: The balanced equation for the reaction of NaOCl(aq) with HCl is: NaOCl(aq) + HCl(aq) → HOCl(aq) +…

Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each…

A: To identify: An option that can form a buffer solution.

Q: A 10.00 Liter (L) sample of HCI requires 35L of 0.100 M KOH. What is the molarity (M) of the acid?

A: Given :-  KOH + HCl → KCl + H2O  Volume of HCl = 10.00 L  Molarity of KOH solution = 0.100 M  Volume…

Q: A buffer solution is made that is 0.482 M in HS and 0.482 M in NaHS. If Ka for H2S is 1.00 x 10-7,…

A: Given: Concentration of weak acid H2S = 0.482 M Concentration of conjugate base salt of weak acid…

Q: PH of diluted calcium hydroxide=7.01 1.) Hydronium ion concentration in dilute solution,M?…

A: The given pH of Ca(OH)2 = 7.01 Known,                        pH = -log[H+]               pOH = -…

Q: A buffer solution is made that is 0.384 M in H2S and 0.384 M in KHS. If Kal for H2S is 1.00 × 10-7,…

A: Given: The concentration of H2S and KHS in the buffer solution is 0.384 M and 0.384 M, respectively.…

Q: A buffer solution contains 0.387 M NaH,PO4 and 0.212 M K,HPO4. Determine the pH change when 0.061…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: Which of the following mixtures would result in a buffer solution? Very briefly explain why for each…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. a) To…

Q: 65.0 mL of 0.575 M HNO, is titrated by 0.450 M KOH. Calculate the pH of the acid solution before any…

A:

Q: A solution may contain any or all of the following cations: Ag+, Pb2+, Ba2+, Ni2+ in an UNKNOWN…

A: Identification of cations

Q: The pK, of hypochlorous acid is 7.530. A 52.0 mL solution of 0.148 M sodium hypochlorite (NAOCI) is…

A: V of NaOCl = 52.0 ml, Molarity of NaOCl = 0.148 M  mmoles of NaOCl = 52 x 0.148   mmoles of NaOCl =…

Q: Determine the pH change when 0.079 mol HI is added to 1.00 L of a buffer solution that is 0.372 M in…

A: The objective of the question is to calculate the  change.

Q: A buffer solution contains 0.361 M CH3NH3Cl and 0.221 M CH3NH₂ (methylamine). Determine the pH…

A: The objective of this question is to determine the change in pH of a buffer solution when a certain…

Q: Which of the following aqueous solutions are good buffer systems? 0.10 M nitrous acid + 0.13 M…

A: A good buffercalled as  relatively equal concentrations of a weak acid and its conjugate base.

Q: A student was required to prepare 250.0 mL of a cyanoacetic acid/sodium cyanoacetate buffer in which…

A: Given, Volume of buffer = 250.0 mL Concentration of weak acid = 0.067 M Concentration of conjugate…

Q: please answer all of them especially at 50 ml. Thank you. Consider the titration of 80.0 mL of…

A:

Q: buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 of a…

A:

Q: Which of the following aqueous solutions are good buffer systems? 0.18 M barium hydroxide + 0.22 M…

A:

Q: The pH of the buffer solution in part A is 4.70. 17.5 mL of 9.50x10-3 mol L1 HCI solution was added…

A:

Q: Which of the following aqueous solutions are good buffer systems? . 0.12 M potassium  acetate + 0.20…

A: To identify: The best buffer solution among the given ones.

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.