The Ka of hyperchlorous acid, HClO is 3.50 X 10-8. How many grams of NaClO (molar mass = 74.5 g/mole) should be added into a 1.00 L 0.10 M HClO solution to make a buffer with a pH of 7.50? A.) 8.25 B.) 6.73 C.) 7.45 D.) 7.50

Q: A. What is the component concentration ratio, [NH3]/[NH4 + ] of a buffer that has a pH of 9.18? B.…

A: Here we can solve the given problem by applying Henderson Hassel-Blach equation .

Q: 4. Formic acid, HFor, has a K value of 1.8 x 10-4. You need to prepare 150 mL of a buffer hav- ing a…

A: Buffer are the solution which are made on mixing weak acid or weak base with the salt of its…

Q: How many grams of solid NaF (MW = 42.0 g/mol) would have to be added to 1.0 L of 1.90 M HF solution…

A: We have to find How many grams of solid NaF (MW = 42.0 g/mol) would have to be added to 1.0 L of…

Q: -9 What mas of A chemistry graduate student is given 125. mL of a 0.20 M pyridine (C,H;N) solution.…

A: The pKb of pyridine can be calculated as follows-

Q: Assuming 0.10 M Na2HAsO4, 0.40 M NaOH and 0.50 M HCl solutions are available in your laboratory.…

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

Q: Which of the following acids is best to use to prepare a buffer with a pH of 4.5? НОC HАОСООН, Ка 3…

A:

Q: How many grams of solid potassium acetate should be added to 1.50 L of a 0.283 M acetic acid…

A:

Q: Be sure to answer all parts. Tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying…

A: Handerson Hasselbalch equation –  Buffer solution is mixture of weak acid and its conjugate base.…

Q: 1. Calculate the pH when 20.0 mL of 0.150 M KOH is mixed with 46.0 mL of 0.300 M HBrO (Ka = 2.5 ×…

A:

Q: A buffer can be prepared from a weak acid, HA, and it's conjugate base, A. A 1L solution is prepared…

A: Given : Volume of buffer solution = 1 L [HA] i.e concentration of weak acid HA = 0.2 M [A- ] i.e the…

Q: -4 A chemistry graduate student is given 100. mL of a 1.50M trimethylamine (CH,),N)s solution.…

A:

Q: The pKa of acetic acid, HC2H3O2, is 4.74. What is the pH of a buffer in which [HC2H3O2] = 0.20 M and…

A: Solution, which resist in pH change value upon addition of small amount of strong acid or base (less…

Q: Calculate the pH of A buffer solution contains 0.052 M HC2H3O2 and 0.025 M NaC2H3O2. , Ka for…

A: Given data, Concentration of HC2H3O2 is 0.052 M  Concentration of NaC2H3O2 is 0.025 M  Ka for…

Q: 2. A solution is 0.10M in Mg(NO3)2. a. What conce ntration of OH is required to just start…

A: (a). Concentration of OH- required can be calculated as:

Q: 12:19 1 Jessica - Chemical Acid-Base Equilibria 回Q K = (b) Calculate the pH of 0.1mol dm potassium…

A:

Q: Which of the following 1:1 mixtures would be best suited to form a buffer closest to a pH of 10 5? O…

A: SOLUTION: Step 1: The pH of a buffer solution can be calculated from the Pkb value as follows.…

Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A: Molarity of NaOH=0.10 M The volume of NaOH=5 mL Molarity of HF=0.10 M The volume of HF=10 mL The…

Q: What will be the pH of a buffer prepared from 5.3 g of NH4Cl and 35 mLs of 1 M NaOH, diluted to a…

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

Q: What is the pH of a buffer made by combining 45.0 mL of 0.30 M nitrous acid and 20.0 mL of 0.35 M…

A:

Q: To prepare an acetate buffer, 204 g of sodium acetate was dissolved in 0.8 L of 0.6 M acetic acid.…

A: Given : Ka = 1.78 x 10-5  Mass of sodium acetate = 204g Molarity of acetic acid = 0.6M Volume = 0.8L

Q: 25.00 mL of a 1.000 x 10-1 M solution of HClO4 is titrated with a 1.052 x 10-1 M solution of NH3. 1)…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: How many moles of NaHCO3 should be added to one liter of 0.100 M H2CO3 to prepare a buffer with pH =…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: A 15.00 mL sample of 0.355 M H3PO4 (Ka,1 7.52 ´ 10–3 , Ka,2 6.23 ´ 10–8 , Ka,3 2.1 ´ 10–13) is…

A:

Q: What is the ratio of lactic acid to sodium lactate in a solution with pH = 4.00? How many grams of…

A: The pH of a given solution can be termed as a measure of its basicity or acidity. It is a measure of…

Q: What mass of NH,CI must be added to 500 mL of a 0.150M NH3 solution to make a buffer with pH = 9.50?…

A: When NH4Cl (salt) and NH3 (weak base) mixed, then they form a buffer solution. The pH of the buffer…

Q: How many grams of solid sodium hypochlorite should be added to 2.00 L of a 0.240 M hypochlorous acid…

A: Since you have posted questions, we are entitled to answer the first only. a) Given: Concertation of…

Q: A chemistry graduate student is given 100. mL of a 0.30M diethylamine ((C,H;), NH) solution.…

A:

Q: 2)How many grams of solid ammonium chloride should be added to 2.00 L of a 0.203 M ammonia solution…

A:

Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A: First, the moles of HF and NaOH solution present initially in the buffer are determined. Now moles…

Q: How many grams of solid NaF (MW = 42.0 g/mol) would have to be added to 1.0 L of 1.90 M HF solution…

A:

Q: 4) A 2.00 L buffer solution is 0.200 M in HF and 0.400 M in KF. Calculate the pH of the solution…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: what volume of Boric acid 0.1 M and what volume of sodium hydroxide 0.1 M should be added together…

A: Step 1: Here, the amount of desired buffer solution is not given so it should be assumed as 100mL (…

Q: Calculate the pH of a buffer that is 0.208 M lactic acid, HC3H5O3, and 0.208 M sodium lactate,…

A: Given that:                                                   Molarity of lactic acid = 0.208 M…

Q: How many grams of solid potassiumfluoride should be added to 2.00 L of a 0.236 M hydrofluoric acid…

A:

Q: 25). One of your classmates, Chem 109 student said, “I can make a perchlorate buffer using equal…

A: A buffer solution is made using either a weak acid with its conjugate base salt or a weak base with…

Q: How many grams of solid ammonium bromide should be added to 2.00 L of a 0.132 M ammonia solution to…

A: Interpretation- To determine how many grams of solid ammonium bromide should be added to 2.00 L of…

Q: Calculate the pH of a buffer that is 1.26 M HClO and 0.079 M NaClO. The Ka for HClO is 2.9 × 10-8.…

A: HOCl + NaClO mixture acts as acidic buffer , its pH can be calculated by Henderson's equation pH =…

Q: A buffer consists of 0.50 M NaH₂PO₄ and 0.40 M Na₂HPO₄.Phosphoric acid is a triprotic acid…

A: A buffer solution is prepared by mixing a weak acid and its conjugate base in the aqueous medium.…

Q: Which of the following aqueous mixtures will result in a buffer with a pH higher than 7.0? (For…

A: Correct answer is option d. 10 mL of 0.1 M NH3 + 5.0 mL of 0.1 M HCl

Q: A 35.0 mL sample of a 0.110 M HBrO solution was titrated with 0.125 M KOH. The Ka for HBrO is 2.0…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Why is a buffer composed of Hc2H3O2 and NaC2H3O2 more effective at maintaining the Ph of a solution…

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

Q: 15.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What…

A:

Q: Find the pH of a buffer that consists of 0.12 M boric acid(H₃BO₃) and 0.82 M sodium borate (NaH₂BO₃)…

A: The Henderson - Hasselbalch equation is an important method which is used for the calculation of the…

Q: 4. A 300 mL buffer is prepared in which [HCO,]= 0.2M and [CO,'] 0.075M a) What is the pH of this…

A: 4. Given that : Volume of buffer = 300 mL [HCO3-] = 0.2 M [CO32-] = 0.075 M

Q: ul See Periodic Table See Hint A buffer is prepared by mixing 41.2 mL of 0.183 MNAOH with 128.8 mL…

A:

Q: 51. A 250.0 mL buffer solution is 0.250 mol L in acetic acid and 0.250 mol L in sodium acetate. a.…

A:

Q: What quantity in moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a…

A:

Q: 4. Formic acid, HFor, has a K, value of 1.8 x 10-4. You need to prepare 100 mL of a buffer hay- ing…

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

Q: A buffer solution is prepared by mixing 20.0 mL 0.45 M CH3COOH (acetic acid) with 35.0 mL 0.45 M…

A: Moles of acidic part of the buffer, CH3COOH added = C*V= 0.45 molL*20.0 mL * 1 L1000 mL= 0.009 mol…

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.