The pH of a benzoic acid solution (20 mL, 0.15 M) after the addition of NaOH solution (20 mL, 0.1 M) is: [Кa 3D6.3 x 10-5] a. 4.50 b. 12.22 С. 1.60 d. 8.95

Q: A chemist titrates 70.0 mL of a 0.1144M nitrous acid (HNO, solution with 0.2245 M NaOH solution at…

A: Nitrous acid is a weak acid , so when it is titrated with NaOH , it's conjugate base will form . And…

Q: Dilute phosphoric acid(K1 = 7.5 x 10-3) solution is titrated with standard NaOH solution to form…

A: Which indicators is used not used for this titration are given below.

Q: Calculate the solubility of Ag2PO4 in solution buffered to pH = 9

A: Since you have posted a multiple question, we will solve first one for you. To get remaining…

Q: What is the final pH of a solution obtained by mixing 450 ml of 0.20 M NaOH with 150 ml of 0.10 M…

A: H3PO4 is a tri-protic acid ( it have 3 acidic Protons ) , so when NaOH is added to it, protons would…

Q: Calculate the volume, in milliliters, of 0.170 M NAOH that must be added to 315 mL 0.0547 M…

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Q: A buffer solution after the addition of 20.0 mL of 1.00 M NaOH solution to 500.0 mL ot a buffer…

A: Buffer solution shows vary little variation or no change upon addition of an acid or a base.

Q: What would be the ideal buffer range for an acid if its Ka = 1.6 x 10-5?

A:

Q: 4. Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2–Tris, or THAM] is a weak base frequently used to…

A: Buffers are the mixtures that resists change in pH when small amount of acid or base is added to it.…

Q: Calculate the pH of 0.391 L of a 0.25 M acetic acid - 0.27 M sodium acetate buffer before (pH1) and…

A: Given data,Molarity of acetic acid=0.25 MMolarity of sodium acetate=0.27 MVolume of buffer=0.391…

Q: What is the pH of a buffer that results when 5.46 mole of H3PO4 is mixed with 2.97 mole of NaOH and…

A: · Moles of H3PO4 = 5.46 mol· Moles NaOH = 2.97 mol· Volume of solution = 1.00 L· Ka1 = 7.5 × 10–3

Q: Calculate the volume, in milliliters, of 0.170 M NaOH that must be added to 409 mL 0.0463 M…

A:

Q: What volumes of stock 0.500 M sodium propanoate and 0.500 M propanoic acid (pKa 4.88) are needed to…

A:

Q: 5) Calculate the volume of concentrated ammonia (molecular weight = 17) needed to prepare 100 ml of…

A: Given :  Kb = 1.8 x 10-5  Density of solution = 0.9 g/ml  Concentration of ammonia solution = 28%…

Q: A 15.00 ml aliquot of a 0.75 M solution of a weak acid (Ka = 1.50E-04 at 25°C) is titrated with…

A:

Q: Calculate the ionic strength of 0.0087 M NaOH0.0087 M NaOH. ?=μ=   MM

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

Q: e. 9.50 H: 14-5.4413 ZpH=8.50 [OH ]=V1445 xlo- COH-7=3.180Ix 10-6. " •(0.70) Ja 11. A buffer…

A:

Q: Which of the following mixtures has the highest buffering capacity? OA0.90 M HPO42-/0.90 M PO43- OB.…

A:

Q: 3. Uh oh, the labels fell off the bottles of chloroaniline (FW 127.57). Again. There are three of…

A: (a) The reaction that occurs during the titration is:…

Q: 3.Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2-Tris or THAM] is a weak base frequently used to…

A: Given: Kb=1.2×10-6pKb= 5.92pKa=8.08 Volume of HCl= 100mL Concentration of HCl= 0.50M pH of buffer=…

Q: Describe the preparation of 500.00 mL of 0.250 M benzoate buffer ( pH = 4.7; pKa = 4.20). The…

A:

Q: If 25.0 ml of 0.10 M NH3 (K, = 1.8 x 10 5) is used to titrate 0.027 L of 0.47 M HCI, the pH is: Your…

A: Interpretation: If 25.0 mL of 0.10 M NH3 is used to titrate 0.027 L of 0.47 M HCl, the pH is to be…

Q: 1. a) Calculate the solubility of pbs in water. Ignore the basicity of s² (Kç pbs=7×10-27). b) Since…

A: Solubility is the extent to which a mineral will dissolve in water.

Q: The PH of a buffer solution containing 0 5mole/litre of CH3COOH and 0.5mole/litre CH3COONa has found…

A: PH of solution after adding the 0.1M HCl is calculated as

Q: If 25.0 ml of 0.18 M NH3 (K, = 1.8 x 10-5) is used to titrate 0.046 L of 0.49 M HCI, the pH is: Your…

A:

Q: Calculate the Ph of the ffg. a. 500 mL of pure water b. 10.0 mL of hydrochloric acid added to pure…

A:

Q: What will be the appropriate pH of a buffer prepared by mixing 100 ml of 0.1 M Na2HPO4 and 100 ml of…

A: amount of given concentration salt concentration Na2HPO4 = 100 ml x 0.1 M = 10mmol acid…

Q: Ka for benzoic acid, c6h5cooh, 6.5x10^-5. Calculate the pH of solution after addition of the…

A: a. The balanced equation for this reaction is given as,

Q: Phosphoric acid is a triprotic acid (Kal = 6.9 × 10-3, K2 = 6.2 x 10-8, and Ka3 = 4.8 x 10-13). To…

A:

Q: Consider the following information about sulfurous acid, a diprotic acid (H-SO3). H2SO3 = HSO,+H…

A: The titration curve given is, And the titration of Na2SO3 with HCl is given.

Q: The arterial blood plasma is buffered by the carbonic acid and bicarbonate ion, with a ratio of…

A:

Q: A solution is prepared by adding 0.01 M acetic acid and 0.01 M ethylamine to water and adjusting the…

A: Solution-using the Henderson hesselbach equation-pH=pKa+logsaltacidpH=pKa=4.75pH=7.4by the above…

Q: Let HA represent a weak acid. A 27.5 mL sample of 0.20 M HA was titrated with 0.25 M NaOH. The…

A:

Q: What is the pH at 25°C of a solution that results from mixing equal volumes of a 0.0500 M solution…

A: The pH of a solution is related to the acid dissociation constant by the Henderson-Hasselbalch…

Q: 11-What is the pH of a solution obtained when 50 ml of 0.05 M NAOH is added to 100 ml of 0.05…

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

Q: What is the pH of 0.37 M acetic acid to 1.00 L of which 1.43 g of sodium acetate, NaCH3CO2, has been…

A: pKa of Acetic acid can be determined as : Molarity of CH3COONa can be calculated as follows:

Q: Let HA represent a weak acid. A 10.0 mL sample of 0.60 M HA was titrated with 0.30 M NaOH. The…

A: The pH of a weak acid and dissociation constant (Ka) are related by the following Henderson…

Q: A chemist titrates 160.0 mL of a 0.3349M cyanic acid (HCNO) solution with 0.3751 M KOH solution at…

A: Given data : Concentration of HCNO = 0.3349 M Volume of HCNO = 160.0 mL Concentration of KOH =…

Q: Calculate the pH after addition of 19.35 mL of 0.1302 M KOH to 25.00 mL of 0.1785 M CH 3CH 2CO 2H. K…

A: Given:  Molarity of KOH is 0.1302M Volume of KOH is 19.35mL Molarity of CH3CH2CO2H is 0.1785M Volume…

Q: Using your knowledge of buffer systems , calculate the pH of blood with its carbonic acid buffer…

A: H2CO3               ↔                H+                    +                    HCO3- 0.0024M…

Q: Calculate the pH of 0.391 L of a 0.25 M acetic acid - 0.27 M sodium acetate buffer before (pH1) and…

A: The pH of a buffer solution is given by the Henderson-Hasselbalch equation as follows;…

Q: What is the pH at 25°C of a solution that results from mixing equal volumes of a 0.0500 M solution…

A: The Henderson–Hasselbalch equation shows the pH of a solution which have a mixture of the two…

Q: Calculate the pH during the titration of 25.00 mL of 0.1000 M NaOH with 0.0500 M HCl at 25 °C after…

A: Given,  Molarity of NaOH = 0.1000 M  Volume of NaOH in mL = 25.00 mL  Molarity of HCl = 0.0500 M…

Q: olution D: 20.0 mL of 1:1 buffer + 5.00 mL NaOH. [NaOH] = 0.1108M [HCl] = 0.1153M pKa(acetic acid) =…

A: A weak acid is solution that contain species of partially dissociated acid, that is hydrogen ions…

Q: (a) Calculate the percent ionization of 0.125 M lactic acid(Ka = 1.4 x10-4 ). (b) Calculate the…

A: a) The percent ionization of 0.125 M lactic acid has to be given, The equilibrium reaction of acetic…

Q: Consider how best to prepare one liter of a buffer solution with pH = 3.79 using one of the weak…

A: In the given question, preparation of buffer solution is required with pH = 3.79. The closest pKa…

Q: Phosphoric acid is a triprotic acid (Ka1 = 6.9 x 10-3, K2 = 6.2 × 10-8, and K,3 = 4.8 × 10-13). To…

A:

Q: Calculate the ionic strength of 0.0087 M NaOH0.0087 M NaOH. ?=μ=   MM Calculate the ionic strength…

A: The ionic strength is defined as the sum of the molar concentration of each ion multiplied by their…

Q: A solution prepared by dissolving 2.25 g HA (MW = 51.0) and 4.00 g of NaA in 500 mL of solution has…

A:

Q: Choose the buffer with the greatest buffering  capacity:     d. 0.25M formic acid/formate buffer at…

A: We are given three different types of buffer solution at different pH and concentrations and we have…