A buffer solution contains 0.53 mol of hydrosulfuric acid (H2S) and 0.10 mol of sodium hydrogen sulfide (NaHS) in 8.70 L. The Ka of hydrosulfuric acid (H2S) is Ka = 9.5e-08. (a) What is the pH of this buffer? pH = ____

Q: A buffer solution is 0.409 M in H2SO3 and 0.311 M in KHSO3. If Kal for H2SO3 is 1.7 x 10-2, what is…

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Q: A buffer solution is 0.320 M in H3PO4 and 0.254 M in KH2PO4. If Kal for H3PO4 is 7.5 × 10-3, what is…

A: H3PO4 is acid and KH2PO4 is a conjugate base of this acid. We use the Henderson Hasselbalch equation…

Q: A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH;COONA) into 100.00 mL of a…

A: Answer:- This question is answered by suing the simple concept of calculation of pH of a buffer…

Q: If 24.6 mL of 0.053 M hydrochloric acid (HCI) solution is added to 22 mL of 0.144 M ammonia (NH3)…

A: Given : Concentration of HCl = 0.053 M Volume of HCl solution added = 24.6 mL = 0.0246 L…

Q: Question 3 I'm not sure how to solve this question.

A: We assume 1L of solution  Adding 16g of HBr  Moles of HBr added = 16/80.91 = 0.197 moles

Q: 8. A buffer solution is prepared by dissolving1.000 g of sodium acetate (CH3COONa) into 100.00 mLof…

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Q: A buffer solution is prepared by dissolving 0.200 mol of NaH2PO4 and 0.100 mol of NaOH in enough…

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

Q: 0.3872g of an unknown weak acid with general formula HY, was dissolved in water and made up to a…

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Q: A. What is the pH of a buffer prepared by adding 0.607 molof the weak acid HA to 0.406 mol of NaA in…

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Q: A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the…

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Q: Calculate the pH of a 0.96 M solution of a weak BOH, for instace NH4OH, often written as NH3, and…

A: If the base is mixed to the basic buffer then the pOH value will be declined while the pH value will…

Q: What mass of Na2HPO4 must be added to 250. mL of 0.50 M H2PO4- to generate a buffer with a pH of…

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Q: A buffer solution contains 1.250 mol of phenol, C6H5OH, and 0.950 mol of sodium phenoxide, C6H5ONa,…

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Q: Which of the following solutions, prepared by dissolving in water 0.50 mol of each substance at 1.0…

A: Buffer solutions are made by either mixing a weak acid and salt of its conjugate base or mixing a…

Q: Phosphorous acid, H, PO, (aq), is a diprotic oxyacid that is an mportant compound in industry and…

A: a.) Before any KOH is added , there is only acid , so we would draw an ICE table and use Ka value to…

Q: 3. A buffer solution is created with the following components: 0.067 M HC,H;O, (acetic acid) 0.075 M…

A: This question is related to ionic equilibrium concept. Follow step-by-step solution.

Q: The stockroom contains 1M NaAc (Sodium acetate), 1M HAc (Acetic acid), distilled water and strong…

A: ANSWER : Initial pH = 4.75   ,    pKa (CH3COOH)  = 4.75  We know that pH =  pKa +…

Q: buffer solution is prepared by dissolving 1.50 g each of benzoic acid, HC7H5O2, and sodium benzoate,…

A: First to calculate moles of each.  Then using formula to calculate pH.

Q: When a 22.9 ml. sample of a 0.347 M aqueous nitrous acid solution is titrated with a 0.309 M aqueous…

A: The volume of the sample = 22.9 mL The molarity of the sample = 0.347 M  The molarity of Ba(OH)2…

Q: A buffer solution is made that is 0.378 M in H2 CO3 and 0.378 M in KHCO3. If Ka1 for H2 CO3 is 4.20…

A: PH of a buffer solution given by Henderson's equation as follows                PH=PKa +…

Q: 9. A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL…

A: Calculation of pKa of Acetic acid: Calculation of no. of mol of CH3COONa: Calculation of no. of…

Q: A buffer solution is made that is 0.399 M in H2CO3 and 0.399 M in NaHCO3. If Ka1 for H2CO3 is 4.20 x…

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Q: A buffer is prepared by combining 150 mL of 0.50 M NaOH and 250 mL of a 0.75 M weak acid, HA. If the…

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Q: Tris(hydroxymethyl)aminomethane is a common base used to prepare buffers in biochemistry.  Its Kb is…

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Q: A chemistry graduate student is given 500. mL of a 0.20 M nitrous acid (HNO,) solution. Nitrous acid…

A: Given : Concentration of weak acid HNO2 = 0.20 M Volume of solution = 500 mL = 0.500 L…

Q: A 20.00 mL aliquot of sorbic acid solution (HC6H7O2) was titrated with 0.0985 M NaOH * (aq) using…

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Q: 1) In the laboratory, a general chemistry student measured the pH of a 0.554    M aqueous solution…

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Q: A student peforms a titration, titrating 25.00 mL of a weak monoprotic acid, HA, with a 1.14 M…

A: Given: Concentration of NaOH = 1.14 M Volume of HA solution used = 25.0 mL = 0.025 L…

Q: What is the pH of the buffer that results when 12.3 g of NaH2PO4 and 7.79 g of Na2HPO4 are diluted…

A: Given: Mass of NaH2PO4 = 12.3 g Mass of Na2HPO4 = 7.79 g Molar mass of NaH2PO4 = 120.0 g/mol Molar…

Q: a.)  A student titrated 50.0mL of a 0.10M solution of a certain weak acid with NaOH(aq). The results…

A: A student titrated 50.0mL of a 0.10M solution of a certain weak acid with NaOH. I) The approximate…

Q: Propanoic acid that, along with its sodium salt, can be used to make a buffer that has a pH of 5.25.…

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Q: A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the…

A: We have to find pH of given buffer on addition of KOH

Q: what is the pH of this buffer solution?

A: Given :-  concentration of HNO2 = 0.309 M  concentration of NaNO2 = 0.340 M  Ka = 4.5 × 10-4  To…

Q: A buffer solution is made that is 0.411 M in H₂S and 0.411 M in NaHS. If Kal for H₂S is 1.00 x 10-7,…

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Q: What is the pH of a buffer composed of 0.35 M H2PO4–(aq) and 0.65 M HPO42–(aq)? (Ka of H2PO4– is 6.2…

A: Ka of H2PO4– = 6.2 x10–8 pKa of H2PO4– = - log Ka = - log 6.2 x10–8 = 7.2

Q: 25.00mL of a 0.100 M sodium hydroxide is added to 45.00 mL of a 0.100 M acetic acid solution. The Ka…

A: Reaction CH3COOH + NaOH ------------> CH3COONa  +  H2O  Volume of acetic acid = 45 mL Molality of…

Q: A 250-mL buffer solution contains 0.0510 mole of KH2PO4 and 0.0875 mole of K2HPO4. (a) Calculate…

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Q: A buffer solution is composed of 1.324 g of KH2PO4 and 4.362 g of NazHPO4. (K, for dihydrogen…

A: Given the mass of KH2PO4 = 1.324 g Molar mass of KH2PO4 = 136.086 g/mol  Moles of KH2PO4  = 1.324 g…

Q: How many grams of solid ammonium chloride should be added to 1.50 L of a 0.235 M ammonia solution to…

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

Q: The stockroom contains 1M NaAc (Sodium Acetate), 1M HAc (Acetic Acid), distilled water and strong…

A: Concentration of stock solution of NaAc = 1M Concentration of stock solution of HAc = 1M A buffer…

Q: A buffer solution is 0.402 M in H2CO3 and 0.314 M in KHCO3. If Kal for H2CO3  is 4.2 X 10 -7 , what…

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Q: 0.020 mol of solid NaOH to 1.0 L of the solution?

A: Moles of CH3COOH = M × V(L)      = 0.50 × 1.0 = 0.50 mol Moles of CH3COONa = 0.50 × 1.0    = 0.50…

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

A: Given : Mass of CH3COONa = 1.000 g Volume of acetic acid solution = 100.00 mL = 0.100 L…

Q: A buffer is prepared by mixing 25 mL of 0.10 M nitrous acid (HNO2) and 25 mL of 0.15 M sodium…

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Q: A buffer solution is made that is 0.432 M in H₂CO, and 0.432 M in KHCO3. If Kal for H₂CO, is 4.20 x…

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Q: At 22 °C, an excess amount of a generic metal hydroxide, M(OH),2, is mixed with pure water. The…

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Q: 7. A 10.00-g sample of the ionic compound NaA, where A is the anion of a weak acid, was dissolved in…

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Q: A 25 mL sample of 0.150 M monoprotic organic acid is titrated with aqueous sodium hydroxide. After…

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Q: A 50.0-mL solution of 0.100 M propanoic acid (HC3H5O2; Ka= 1.34 x 10–5) is titrated with 0.200 M…

A: Hii there, since there are multiple subparts posted. we are answering first three subparts.  if you…

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.