) If 5.0 mL of 0.100 M NaOH is added to 100.0 mL of a 0.0500M phosphate buffer solution at pH 7.2, what is the resultant pH of the solution?

Q: Calculate the mass of sodium acetate (CH3COONa) required to prepare 35 mL of a 0.15 M sodium acetate…

A: Given data: Sodium acetate concentration = 0.15 M Volume = 35 mL Molar mass of sodium acetate =…

Q: acid:conjugate base

A:

Q: A buffer solution contains 0.371 Mhydrocyanic acid and 0.449 M potassium cyanide. If 0.0218 moles of…

A: pH = pKa + log[salt]/[acid]

Q: The pH of a buffer solution containing 0.35 M acetic acid and 0.39 M sodium acetate where the pKa of…

A: For acidic buffer solution: pH = pKa + log CH3COO-CH3COOH  pH = 4.75 + log 0.390.35  pH = 4.75 +…

Q: How many g of sodium formate should be added to 250 ml of 0.2 M hydrochloric acid solution to obtain…

A: Given,  Volume of HCl = 250 mL  Molarity of HCl = 0.2 M  pH = 4.3  Mass of sodium formate in g = ?

Q: What will be the pH of a buffer solution prepared from 0.20 mol NH3, 0.40 mol NH4NO3, and just…

A: Given : a buffer solution of weak base NH3 with its conjugate acid NH4NO3  Since moles =…

Q: buffer

A:

Q: An aqueous solution contains 0.464 M hypochlorous acid.How many mL of 0.364 M sodium hydroxide would…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

Q: A buffer solution is 0.486 M in NaH2PO4 and 0.394 M in Na, HPO4. If Ka for H2PO4¯ is 6.2 × 10¬8,…

A:

Q: What is the pH of a buffer solution that is 0.20 M propionic acid and 0.46 M sodium propionate?

A: Interpretation: The pH of a buffer solution that is 0.20 M propionic acid and 0.46 M sodium…

Q: What is the ph of the solution that results when 25.0 ml of 0.125 M NaOH is added to 25.0 mL of…

A: I assume that you meant the 0.250 M HClThe balanced equation for the given reaction is,

Q: 50.00 mL of 0.200 M sodium dihydrogen pyrophosphate (N22H2P207) solution is combined with 25.00 mL…

A: Buffer solution is prepared, when an strong base is added into weak acid solution then resulting…

Q: What is the pH of a buffer solution that is 0.40 M in formic acid (HCHO2) and 0.90 M in sodium…

A: Given: pKa of formic acid = 3.74 Concentration of formic acid = 0.40 M Concentration of sodium…

Q: a buffer is prepared by adding 39.8 mL of .75 M NaF to 38.9 mL of .28 M HF. what is the pH of the…

A: The volume of NaF = 39.8 mL . The volume of HF = 38.9 mL.  The concentration of NaF = 0.75 M . The…

Q: A buffer solution is 0.453 M in KH2PO4 and 0.271 M in K2HPO4. If Ka for H2PO4- is 6.2x10^-8, what is…

A: Buffer solutions show resistance to change its pH upon addition of strong acids or bases, which is a…

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.404 M nitrous acid…

A:

Q: A chemist prepares a 0.50 M solution of NaF which gives a measured pH of 8.58; and also prepares a…

A: In the above question the acidic and basic behaviour of the different salts is dependent on the…

Q: KH2PO4 and K½HPO, can be used to prepare a buffer system. True O False

A: A buffer system is used to maintain constant pH of the solution.

Q: If a buffer solution is 0.200 M in a weak base (Kb=7.4×10−5) and 0.450 M in its conjugate acid, what…

A: Calculate the pOH value of the given buffer solution,            pKb = - log Kb = -log (7.4 × 10-5)…

Q: What is buffer solution?give the application of buffer with proper solution.

A: To find: The definition for buffer solution Application of buffer

Q: If a buffer solution is 0.200M in a weak acid (?a=9.0×10−5)and 0.550M in its conjugate base, what is…

A: Ka = 9.0 x 10-5  pKa = -log Ka = - log ( 9.0 x 10-5)  pKa = 4.046 [Acid] = 0.200 M  [Conjugate base]…

Q: Calculate the pH of the following solution when the 2 reagents are mixed: 25.00mL of 0.550M KOH…

A:

Q: If a buffer solution is 0.260 M in a weak base (Kb=8.4×10−5) and 0.480M in its conjugate acid, what…

A:

Q: If a buffer solution is 0.140 M in a weak base (Kb= 1.8*10^-5) and 0.590 M in its conjugate acid,…

A:

Q: Indicate using true or false: The maximum buffer capacity for solutions can be achieved when the…

A: This is wrong statement becuase buffer capacity is maximum when PH=Pka

Q: A buffer solution of 200 mL is prepared from 0.028 mol of a weak HX acid and 0.0070 mol of NaX.…

A: Buffer solution :- A solution which resists change in its pH value by the addition small amount of…

Q: How does the pH change in a buffered system compared to an unbuffered system?

A: A system of solution in which there is a remarkable amount of a weak base with its conjugate acid or…

Q: A buffer solution is 0.080 M in lactic acid (Ka = 1.8 × 10−4) and 0.070 M in sodium lactate. The pH…

A: The pH of the buffer solution is find out using the Henderson-Hasselbalch equation. This equation…

Q: 0.25 mol of benzoic acid and 0.15 mol of sodium benzoate are dissolved in 1 L of water. What is the…

A:

Q: In titrating 40.0 ml of 0.10 M of HCI solution with 0.15 M of KOH solution, what would be the pH of…

A: Given: Concentration of HCl = 0.10 M Volume of HCl solution used = 40.0 mL = 0.040 L…

Q: The value of Ka for acetic acid is 1.75 × 10—5. The pH of a 0.100 M solution of acetic acid is:

A:

Q: There are 250 ml of a Buffer solution, where the concentration is 0.225 M of acetate of sodium and…

A: Buffer solution is a mixture of weak acid and it's conjugate base or a weak base with its conjugate…

Q: The following buffered solutions were prepared. To 50.00 ml of the following buffered solutions,…

A: Given  4ml of NaOH was added to 50 ml of Buffer  We have to determine buffer capacity for the given…

Q: The pH of a buffer solution containing 0.5 mole/litre of CH3COOH and 0.5 mole/litre CH3COONa has…

A:

Q: A buffer solution is composed of 0.1 M CH3OOH and 0.2 M CH3COONA а.) What is the pH of this buffer?…

A: As per rule only three subparts of the first question can be answered. pH = pKa + log [salt] /…

Q: ) If 5.0 mL of a 0.100M HCl solution is added to 100.0 mL of a 0.0500M phosphate buffer at pH 7.2,…

A: Calculate the moles of phosphate ion from the given volume and concentration.

Q: In what volume ratio should you mix 1.0 M solutions of NH4Cl and 1.0 M NH3 to produce a buffer…

A:

Q: If a buffer solution is 0.180 M in a weak base (Kb=7.5×10−5) and 0.400 M in its conjugate acid, what…

A:

Q: A buffer was prepared by mixing 1.00 mole of ammonia and 1.00 mole of ammonium chloride to form an…

A:

Q: A 200 mL buffer solution is prepared from 0.028 mol of a weak HX acid and 0.0070 mol of NaX. Since…

A: A mixture of weak acid (HX)  and its salt (NaX) with strong base acts as acidic buffer solution. For…

Q: If a buffer solution is 0.210 M0.210 M in a weak acid (?a=5.0×10−5)Ka=5.0×10−5) and 0.490 M0.490 M…

A:

Q: If a buffer solution is 0.270 M in a weak acid (Ka = 7.5 x 10) and 0.570 M in its conjugate base,…

A:

Q: Determine the pH of the solution obtained if 30 mL of 0.075 M ethylamine is titrated with 0.15 M HCI…

A: The balance equation is given below, Calculate the number of moles of ethylamine: 1 L = 0.001 mL…

Q: An aqueous solution contains 0.305 M methylamine (CH3NH2). How many mL of 0.365 M hydroiodic acid…

A: Interpretation-  To determine the volume ( mL) of 0.365 M hydroiodic acid would have to be added to…

Q: You have 50.00 mL of a solution that is 0.100 M in aceticacid, and you neutralize it by adding 50.00…

A: Given,  we have 50.00 mL of a solution that is 0.100 M in aceticacid, and we neutralize it by adding…

Q: 125 mL of 0.3 M HC1 was mixed with 320 mL of 0.15 M NaF. What is the pH of the solution after…

A: Given data : Concentration of HCl = 0.3 M Volume of HCl = 125 mL Concentration of NaF = 0.15 M…

Q: what is the pH?

A: Given :-  Concentration of weak acid = 0.250 M  Concentration of conjugate base = 0.450M  Ka = 5.9 ×…

Q: a. Suppose a solution contains 0.50 M NaHPO4 and 0.80 M NazHPO4. What pH should be expected for this…

A: Recall Henderson Hasselbalch equation to calculate pH of the given buffer solution          pH=pKa +…

Q: How many moles of sodium hydroxide would have to be added to 150 mL of a 0.479 M hypochlorous acid…

A: The reaction between the sodium hydroxide and hypochlorous acid as shown below. At standard…

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.