QI- SOLVE mathematically, then choose the correct answers: 1- Calculate the pH of solution made by combining 100 ml of 0.28 M HC,H,O; and 50 ml of 0.36 M NAOH, Ka for HC,H,Ó, =1.8 x 10 a- 3 b- 3.68 C- 4.74 d- 5 e- 6 2- The pH in a saturated Mn(OH); solution is...at solubility product constant for Mn(OH)2 is 4.6x10". a- 9.0 b- 9.2 c- 9.3 d- 9.5 e- 9.7

Q: HA 0.05 L buffer solution (pH = 11.00) was prepared from 0.02 L, 0.2 M NaHCO3 and bottle of sodium…

A: Given the volume of the buffer solution prepared = 0.05 L  pH of the buffer = 11.00  NaHCO3  and…

Q: Lalculate the pH at the halfway point and at the equivalence point for each of the following…

A: a) 100 mL of 0.10 M HC7H5O2 (Ka = 6.4 X10-5) titrated by 0.10 M NaOH Solution :              a) At…

Q: 4. Calculate the pH of a salt solution of NH,CI with molar concentration 0.1 M (Kh = 5.71 x 101")

A: Given, The molarity of NH4Cl = 0.1M            Kh = 5.71 × 10-11

Q: H.Ws: 1- What is the influence of adding buffers on the chemical solutions? Give an example of oil…

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Q: In a reaction 45.0 mL of 0.3M of HC2H3O2 is titrated with 0.2M KOH solution. Ka= 1.8x10^-5 1) what…

A: Answers are explained below.

Q: A buffer consisting of 0.36 M HA and O.321 H of the solution once the NaOH is absort for HA =67x 10…

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Q: A 50.0-mL sample of 0.10 MHNO 2 (Ka 4.0 x 10-4) is titrated with 0.18 M NaOH. The pH after 11.1 mL…

A: Given -> Volume of HNO2 = 50.0 ml Molarity of HNO2 = 0.10 M Molarity of NaOH = 0.18 M Volume of…

Q: Calculate the solubility (in moles per liter) of Al(OH)3 (Kp = 2 x 10-32) in each of the following.…

A: The solubility of ions can be calculated with help of the solubility product constant. Ksp = [A+]a…

Q: A buffer is made up of 2.0 mL of 0.1 M weak acid (AH) and 20.0 mL of 0.1 M conjugate base (A minus).…

A: Given  Volume of weak acid = 2 mL                                    = 2 × 10-3 Liter        ( 1 mL…

Q: A buffer solution was prepared by adding 4.98 g of sodium acetate, NaCH, CO₂, to 2.50 x 10² mL of…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Ksp for Zn(OH)2 is 5.0 8 0-17. mi molar solubility of Zn(OH)2 in a solution with a p 10.6. (а., 20…

A:

Q: An aqueous solution of perchloric acid is standardized by titration with a 0.159 M solution of…

A: Given, Molarity of barium hydroxide, Ba(OH)₂ = 0.159 M            volume of barium hydroxide,…

Q: 8. Calculate the pH at the equivalence point when 0.104 g sodium acetate (NaC2H3O2; K, = 5.6x10-10)…

A: The pH shows characteristics properties of solutions whether they contain high or low amount of…

Q: snip

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

Q: An aqueous solution of hydroiodic acid is standardized by titration with a 0.148 M solution of…

A:

Q: Calculate the solubility of Au(OH)3 in (a) water and (b) 1.0 M nitric acid solution. (Ksp = 5.5 ×…

A: Given,Ksp = 5.5 × 10-46

Q: Calculate the pH for each of the cases in the titration of 25.0 ml. of 0.220 M pyridine, C, H, N(aq)…

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Q: A buffered solution containing dissolved aniline, C, H, NH₂, and aniline hydrochloride, C,H, NH, Cl,…

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Q: Calculate the pH of a solution containing 0.1M NH,OH and 0.01M NH.CI, K = 1.76 x 10$. %3D

A: Given, [NH4OH] = 0.1 M [NH4Cl] = 0.01 M Kb = 1.76 × 10-5

Q: 29. A 50.0 mlL sample of 0.155 M HNO2(ag) is titrated with 0.100 M NAOH(aq). What is the pH of the…

A: Given that: Molarity of HNO2 = 0.155M Volume of HNO2 solution = 50.0ml = 50.0ml×1L1000ml = 0.050L…

Q: What is the pH of the solution when 50.0 mL of 0.20 M HI is titrated with 40.0 mL of 0.139 M…

A: Given: Molarity of HI is 0.20 M Volume of HI is 50.0 mL Molarity of Sr(OH)2 is 0.139 M Volume of…

Q: 4. The slightly soluble salt AB ionizes as shown. (1) AB2 (s) A2* (aq.) + 2B (aq.) When a solution…

A: The above given question is not complete ques. This is an incomplete problem. I need more to…

Q: A buffer is made by dissolving 12.4 g of sodium dihydrogen phosphate, NaH,P04, and 21.8 g of…

A: pH means the negative logarithm of hydronium ions. By using Henderson - Hasselblach equation: A is…

Q: A buffer is to be prepared from acetic acid (CH3COOH) and sodium acetate (NACH3COO). What ratio of…

A: Correct answer is 100 : 1. pka = -log ka = -log ( 1.82 x 10-5 ) = 5 - 0.26 = 4.74 Henderson equation…

Q: Q1/ A buffer solution having pH of 4.7 at 25 °C, Calculate the molar solubility of Al(OH)3 in this…

A: Molar solubility  is the ratio of concentration at equilibrium.

Q: a. [CH3 COOH] = 0.85 M, [CH;CO0-] = 0.45 M (the pK, for acetic acid is 4.74) pH = b. [Н,РО, ] 3 0.50…

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Q: A buffer solution is made that is 0.309 M in HN02 and 0.309 M in NaNO2. If Ka for HNO2 is 4.50 x…

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Q: Consider the titration of 25.0 mL 0.175 M CH3COOH (Ka 1.8 X 105) with 0.105 M aqueous NaOH. Write…

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Q: -33 For the equilibrium; = (1.3×10 a. What is the minimum pH at which Al(OH)3() will precipitate 3+…

A: The objective of the question is to find the minimum pH at which Al(OH)3 will precipitate from a…

Q: . The solubility of a salt A2B3 is 1.0 x 10-3 M. Calculate its solubility product. A. 1.08 x 10-13…

A: We know that the amount of a substance that will dissolve in a given amount of another substance is…

Q: The pH at the equivalence point for the titration of a weak acid with a strong base will always be O…

A: Answer: pH defines the acidity of the solution. Mathematically, it is the negative logarithm of H+…

Q: A 24.84 mL aliquot of a weak acid has a concentration of .58 M. It will be titrated with .32 M NaOH,…

A: We have to predict the pH of the solution.

Q: what is the pH at the equivalent point in the titration of 5 mnol Potussium acid phthalute dissolved…

A: Potassium hydrogen phthalate is denoted as KHP, and is a weak acid. NaOH is a strong base and will…

Q: Consider the titration of a 30.0 mL sample of 0.126 M CO32- so HI. Determine each quantity. Kb = 2.1…

A: The objective of this question is to determine the concentration of a specific reactant in a…

Q: Assume you dissolve 0.333 g of the weak acid benzoic acid, CH, CO₂H, in enough water to make 1.00 x…

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Q: Calculate the pH of a buffer solution prepared by mixing 10.00 mL of a 0.50 M CH₂CO₂H and 10.00 mL…

A: Acidic buffer solution is made by reacting any weak acid and it's salt (conjugate base) with strong…

Q: A 30.00 mL of 0.125 M NaOH solution is titrated with a standard 0.250 M HCI solution. Calculate the…

A: Given :  Volume of NaOH solution = 30.00 ml  Molar Concentration of NaOH solution = 0.125  M  Volume…

Q: 1. Calculate the pH of a 0.048 M solution of NaCH3COO. (Sodium acetate) [4]

A: 8.pOH=−log[OH−]=−log(5.16×10−6)≈5.3

Q: If 283.0 mg of AgBr is completely dissolved in 143.0 mL of 0.2 M NH3, what is the equilibrium…

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Q: i. A 1.000L buffer is made of 0.7 M CH3COOH and 0.6 M CH3COONa .What is the pH of the buffer…

A: (i) We have  volume of solution =1 L Molarity of CH3COOH=0.7 M⇒moles =0.7 mol/L ×1L=0.7 molMolarity…

Q: A buffer solution is composed of 1.923 g of KH,PO4 and 4.699 g of Na HPO4. (K, for dihydrogen…

A: Given that : Mass of KH2PO4=1.923 gMass of Na2HPO4=4.699 gKa for dihydrogen phsophate=6.2×10-8The…