How many grams of dry NH4Cl need to be added to 1.80 L of a 0.800 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.53? Kb for ammonia is 1.8×10−5. Express your answer with the appropriate units.

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Q: When a 20.3 mL sample of a 0.386 M aqueous acetic acid solution is titrated with a 0.472 M aqueous…

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A: Gastric Juice contains HCl. Volume of gastric juice = V1 = 20ml Volume of KOH = V2 = 25.6ml…

Q: How many grams of dry NH4Cl need to be added to 2.0 L of a 0.300 mol L-1 solution of ammonia, NH3,…

A:

Q: What is the pH of the solution formed when 125 mL of 0.200 M NaOH is added to 250. mL of 0.500 M…

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Q: A buffered solution is prepared containing acetic acid, HC2H3O2, and sodium acetate, NaC2H3O2, both…

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

Q: a buffer solution is 0.210 Min a weak base (?b=1.6×10−5) and 0.490 M in its conjugate acid, what is…

A: Given-> Concentration of weak base (BOH) = 0.210 M Kb = 1.6 × 10-5  Concentration of conjugate…

Q: A student was given a 0.15 M solution of an unknown diprotic acid H2A and asked to determine the Ka1…

A:

Q: A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine…

A: Milimoles = Molarity × Volume.Number of milimoles of acid is equal to number of milimoles of base in…

Q: A student forgot to label two bottles of aqueous base. One contained KOH and the other C6H5NH2. What…

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Q: You are asked to estimate the pH of a 15mL of 0.09 N of HCl when 16.9mL of 0.085 N NaOH is added to…

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Q: What is the purpose of the buffer salts?   The buffer salts serve to make water a better conductor…

A: To explain the purpose of the buffer salts.

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Q: How many milliliters of 0.0200 M Ca(OH)₂are required to neutralize 79.7 mL of 0.0300 M HCl?

A: B

Q: Which of the following could you add to a solution of the weak acid, hydrosulfuric acid (H2S), to…

A: answer- hydrosulphuric acid 's conjugate base , HS- added to the solution of weak acid , H2S to make…

Q: A student is trying to prepare a buffer solution with a pH of 9.00. Calculate the mass of potassium…

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Q: A chemistry graduate student is given 125.mL of a 1.00M methylamine CH3NH2 solution. Methylamine is…

A: pH of buffer solutions can be calculated using Henderson-Hasselbalch equation. pOH of basic buffer…

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A: Given:Volume of HCl (V1) =20.00 mL =0.020 LMolarity of KOH (M2) = 1.70 x 10-4 MVolume of KOH (V2) =…

Q: You are titrating 50 mL of 0.100 M HF with 0.050 M NaOH. What is the pH after: a. 50 mL of NaOH…

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Q: Part C In Part A, a 35.00 ml aliquot of a 0.195 mol L 2-methylbutanoic acid solution was titrated to…

A: First we will draw ICE table of the salt formed, then calculate pH using Kb value.

Q: A mixture of ascorbic acid (C6H,06H, Ka = 6.8 x 105) and sodium ascorbate is prepared such that…

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Q: What is the pH of 100 mL of a 50 mM solution of benzoic acid is added to 70 mL of a 50 mM NaOH…

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Q: 0.800 grams of solid barium hydroxide, Ba(OH)2, is added to enough water to prepare 250.0 mL of…

A: Given :-  Mass of Ba(OH)2 = 0.800 g  Volume of solution = 250.0 mL  To calculate :-  pH of resulting…

Q: Given two buffer solutions:       Buffer 1 : 0.200 M CH3COOH - 0.200 M NaCH3COO       Buffer 2 :…

A: The buffer solutions given are, Buffer 1 : 0.200 M CH3COOH - 0.200 M NaCH3COO          Buffer 2 :…

Q: 10.0 cm³ of a solution of a strong acid with a pH of 3 is added to a volumetric flask and the total…

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Q: An aspirin tablet contains 250 mg of acetylsalicylic acid, C9H8O3 (Ka = 6.4x10-4).  If you take the…

A: Answer :- pH = 2.30  pH of mixture of 250 mg acetylsalicylic acid, C9H8O4 in 35.0 mL water is 2.30…

Q: An analytical chemist is titrating 156.4 mL of a 0.2700 M solution of butanoic acid (HC3H7CO2) with…

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Q: Enter your answer in the provided box. A buffer solution is prepared in such a way that the…

A:

Q: The ability of a solution to resist changes to the pH from added acid or base depends upon the…

A: We know that best buffering occurs, when buffering capacity is 1.

Q: Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or…

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Q: Which one of the following pairs of compounds would be able to function as a buffer? HBr and Br-…

A: *Acidic buffer is equimolar  mixture of weak acid and it's salt with strong base.  * HBr and HNO3…

Q: 1. Write the complete chemical equation for the reaction of a solution of sodium hydroxide and…

A:

Q: What would be considered a buffer solution? A mixture of a weak base and its conjugate acid A…

A: Buffer solution is defined as a solution that oppose changes in  while adding little amount of…

Q: How many grams of dry NH,Cl need to be added to 1.60 L of a 0.100 mol L- solution of ammonia, NH3 ,…

A: We have a buffer solution of base NH3 and salt NH4Cl.      From henderson hasselbalch equation ,…

Q: In the laboratory, a general chemistry student measured the pH of a 0.365 M aqueous solution of…

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

Q: A 0.025 M solution of an unknown organic acid has a pH of 5.70. 2.1 By means of a full calculation,…

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Q: Twenty millimeters of 0.50N HOAc is diluted with water to 100mL, and the resulting solution is…

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Q: 4) Calculate the pH of a solution that is composed of 90.0 mL of 0.345 M sodium hydroxide, NaOH, and…

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Q: A student was given a 0.15 M solution of an unknown diprotic acid H2A and asked to determine the Ka1…

A: The first acid dissociation constant of diprotic acid is calculated as,

Q: A patient is suspected of having low stomach acid, a condition known as hypochloridia. To determine…

A: Given : Volume of gastric juice = 200 ml  Molarity of KOH = 1.73 × 10-4 M  Volume of KOH = 4.82 ml…

Q: Consider the titration of potassium hydroxide with hydrocyanic acid and answer the following…

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

Q: The student titrates 20.0 mL of the weak acid with 0.300 M sodium hydroxide, NaOH(aq). When 5.00 mL…

A: This is a question related to buffer solution

Q: Which of the following pairs would be appropriate to make a buffer of pH 8.0? O HBr and NaBr O…

A: For pH = 8 , weak acid must have  pKa value nearest to 8

Q: 4. Lactic acid is found in milk and is present in human muscle tissue during exertion. It has also…

A: Henderson-Hasselbach equation. this equation shows the relationship between pH of a solution, the…

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Q: A buffer solution is prepared by dissolving  1.700 g of ammonium chloride (NH4Cl) into 100.00 mL of…

A: Mass of ammonium chloride is 1.7 g. Molar mass of ammonium chloride is 53.491 g/mol.

Q: Consider the following solutions: Solution 1: 0.100 L of 0.25 M NaCH3CO2 + 0.050 L of 0.25 M HCl…

A: # Solution-1: Volume of 0.25 M  NaCH3CO2 = 0.100 L Moles of NaCH3CO2  = C*V= 0.25 molL * 0.100 L=…

Q: 50 mL of a 0.500M solution of ammonia (Kb=1.8x10^-5) was added to 200 mL ultra pure water. What is…

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Q: Predict whether each of the following pairs of substances could function as a buffer system in…

A: Given Buffer  System  (a) HNO3 and KNO3 (b) HCN and NaCN (c) KCl and KCN (d)…

Q: What is the pOH of a solution prepared by diluting 50ml of 0.06M HCl with 20ml of distilled water?

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