A buffer with pH of 4.74 is composed of 0.50mol sodium acetate and 0.60mol acetic acid is diluted to a volume of 1.0L. To increase its pH to 5.74, how many moles of sodium hydroxide should be added. O 0.41mol 0.25mol 0.55mol 0.50mol 0.32mol

Q: How many moles of potassium hydroxide would have to be added to 150 mL of a 0.477 M hydrofluoric…

A: Given: V=150mL;[HF]=0.477;pH=3.150;Ka​=6.3x10−4The value in this question may have been different…

Q: A buffer solution contains 0.327 M NH Br and 0.336 M NH3 (ammonia). Determine the pH change when…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.  It…

Q: Which of the following aqueous solutions are good buffer systems? . 0.26 M nitric acid + 0.16 M…

A: Buffers are formed by weak acid and its salt, weak base and its salt or salt or weak acid and weak…

Q: Which of the following will not form a buffer solution when added to 100 mL of 1M NaOH? I. 0.1 mol…

A: Buffer is a solution of a weak acid and its conjugate base or weak base and its conjugate acid which…

Q: This

A: a. Molar quantity of HCl added to the buffer: =Molar concentration of HCl×Volume of HCl added=1.00…

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

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Q: Calculate buffer pH after adding strong acid or strong base. Determine the pH change when 0.080 mol…

A:

Q: A buffer solution contains 0.411 M CH3NH3Cl and 0.320 M CH3NH2 (methylamine). Determine the pH…

A: Concentration of CH3NH3Cl=0.411M Concentration of CH3NH2=0.320M Moles of NaOH=0.076mol Volume=1.00L…

Q: For each combination of substances dissolved in water shown below, determine whether it forms or…

A: Buffer Solution is a water solvent based solution which consists of a mixture containing a weak acid…

Q: 2. Define buffer capacity. 3. If you had a 1.0 M acetic acid/acetate buffer and a 0.1 M acetic…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.It is…

Q: Consider the following reaction: CH3 COOH + OH- -----> CH3COO- + H2O How much 5.90M  NaOH must be…

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Q: Consider a buffer composed of the weak acid HA and its conjugate base A-. Which pair of…

A: A buffer solution does not change its pH if a small amount of acid or base is added to it.

Q: O adding 0.060 moles of HOCI

A: I   Buffer are solution that contain a buffer pair of either a weak acid and a salt of its…

Q: A buffer is made by adding 19.4 grams of lithium fluoride to 200 mL of 2.00 M HF. a) What is the pH…

A:

Q: Which of the following aqueous solutions are good buffer systems? . a. 0.26 M hydroiodic acid + 0.20…

A: A buffer solution is defined as when a weak acid is added to the conjugate base of the weak acid, or…

Q: Which of the following combinations can be used to make a buffer? assume equal values are used A.…

A: For buffer solution : we take weak acid/ weak base and it's conjugate base / conjugate acid.....

Q: To prepare an acetic acid/acetate buffer, a technician mixes 31.9 mL of 0.0836 M acetic acid and…

A: Concept:  Molarity = no of Moles/ Volume Now  No of Moles = MV  Where  M = molality  V = volume

Q: Which of the following mixtures would create an effective buffer? Give reasoning in each case. 1.…

A: A buffer solution is a solution in which the  of the solution does not change appreciably upon…

Q: Determine whether or not the mixing of each pair of solutions results in a buffer.a. 75.0 mL of 0.10…

A: A buffer solution is the solution which resist to changes its pH with the addition of strong acid or…

Q: For a buffer initially containing .6 mol of NH3 and .3 mol of NH4CI in 1.0 L, what is the pH after…

A: NH3 is a weak base while NH4Cl is salt made from weak base and strong acid.  So, NH3 and NH4Cl is a…

Q: Consider the following reaction: CH3 COOH + OH- -----> CH3COO- + H2O How much 5.90M  NaOH must be…

A: CH3 COOH + OH- -----> CH3COO- + H2O

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: A buffer solution is prepared by combining 3.00 grams of 3-nitrobenzoic acid (138.12g/mol) in…

A: (A) The molar mass of 3-nitrobenzoic acid is 167.12 g/mol. The moles of acid is calculated as…

Q: . A 38.1 mL sample of a 0.391 M aqueous hydrocyanic acid solution is titrated with a 0.475 M aqueous…

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

Q: 2. Phenol (C6H5OH) has a Ka of 1.6*10-10. Starting with a 100.0 mL solution that is 0.300 M phenol,…

A: Given that : Volume of C6H5OH=100mLIts concentration=0.300 MpH = 10Ka of C6H5OH=1.6×10-10So,…

Q: A buffer is made with 1.0 mol of sodium acetate and 1.0 mol acetic acid in 1 liter of solution.…

A: A buffer is made with 1.0 mol of sodium acetate and 1.0 mol acetic acid in 1 liter of solution. The…

Q: A buffer solution contains 0.375 M CH₂NH₂3Cl and 0.444 M CH₂NH₂ (methylamine). Determine the pH…

A: pH change for the buffer solution after HCl is added

Q: Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer…

A: A buffer solution is a solution that resists changes in pH when an acid or base is added to it. It's…

Q: Which of the following aqueous solutions are good buffer systems? 0.25 M ammonium nitrate + 0.34 M…

A: An acidic buffer will be formed if a weak acid is mixed with its salt. Again, a basic buffer will be…

Q: A student wishes to make a buffer that has a pH of 4.65.  The student has HNO2 and NaNO2.  Nitrous…

A: Volume of HNO2 = 100.0 mL = 0.1000 L Molarity of HNO2 = 0.100 M = 0.100 mol/L pH of buffer = 4.25…

Q: What is the pH of buffer solution containing 0.25 M acetic acid and 0.4 M sodium acetate ?

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

Q: Which of the following aqueous solutions are good buffer systems? . 0.34 M nitrous acid + 0.27 M…

A: The good buffer solutions are : (a). 0.34 M nitrous acid + 0.27 M potassium nitrite, Because, HNO2…

Q: A buffer is prepared by mixing 43.9 g of NH3 and 43.9 g of NH4Cl in 0.548 L of solution. What is the…

A:

Q: An aqueous solution contains 0.32 M potasslum hypochlorite. One liter of this solution could be…

A: Buffer solutions:  A solution which resists it's pH by addition of small amount of Strong acid…

Q: Describe/ explain what a buffer is/ how it works. Do Not use the words "acid" or "base" or any…

A:

Q: hoose a suitable acid-base pair to prepare a buffer with a pH of 4.75.

A: A buffer solution is defined as an aqueous solution consisting of a mixture of a weak acid and its…

Q: What is the pH of a buffer made by combining 45.0 mL of 0.34 M nitrous acid and 60.0 mL of 0.48 M…

A: Answer

Q: Suppose there is 1.00 L of an aqueous buffer containing 60.0 mmol of acetic acid (p?a=4.76) and 40.0…

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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.