An alkaline solution was prepared with LiOH in such a way that 0.65 g dry LiOH was directly mixed with 0.6 M 650 mL LiOH solution and finally 350 mL more water was added to it. Find the final pH of the solution. You need to consider 100% dissociation of LiOH.

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: A solution of sodium chlorite is prepared using 0.38 mol L1 NaOH as the solvent. The pK, of chlorous…

A: Solutions- Given- NaOH Conc. = 0.38 mol/lit, pKa of chlorous acid = 2, conc. of sodium chlorite =…

Q: A litre of solution containing 0.1 mole of CH,COOH and 0.1 mole of CH,COONA provides a buffer of pH…

A: Given : Moles of CH3COOH taken = 0.1 mol. Moles of CH3COONa taken = 0.1 mol. And moles of NaOH added…

Q: 18) How many grams of sodium fluoride (MM =41.988 g/mol) must be added to 250.0 mL of a 0.100 M…

A: This question based on formula of acidic buffer  NaF and HF is acidic buffer   The answer is c that…

Q: Sodium acetate, NaCH;COO (82.0343 g/mol) is commonly used as acidic buffer solution. Estimate the…

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Q: The average daily dose recommended by hematologists for drugs is no more than 200 mg in terms of…

A: The average daily dose of elemental iron in the term of moles is determined as follows.…

Q: Calculate the pH of the resulting solution when 30.0 mL of 0.16 M KOH are added to 46.0 mL of 0.15 M…

A: When KOH ( a strong base ) is added to HClO ( a weak acid , they would react to form a buffer…

Q: A 2.14-g sample of sodium hypoiodite is dissolved in water to make 1.25 L of solution. The solution…

A: Sodium Hypoiodite is NaIO. It is a base and therefore, we will symbolize it by 'B' as per the…

Q: Calculate the pH of the resulting solution when 20.0 mL of 0.150 M formic acid (Ка%3D 1.80 х 104) is…

A: Note : As per guideline if multipart questuion only 3 subparts allowed , please post it seperately ,…

Q: Describe how you would prepare a 0.1 M phosphate bufferwith a pH of 7.2. What ratio of conjugate…

A: The pKa values of phosphoric acid are: pKa1 = 2.1 pKa2 = 7.2 pKa3 = 12.3 Phosphoric acid (H3PO4) has…

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: 415 mL of 0.028 M hydroiodic acid is added to 656 mL of 0.056 M perchloric acid. Calculate the pH of…

A: Given acid s: hydroiodic acid (HI) : Concentration,M1 : 0.028 M Volume, V1: 415 mL perchloric acid…

Q: What is the pH before addition of any KOH?

A: Not, as per Bartleby guidelines, we can answer only first 3 questions  Given  50.0 mL of 0.200 M…

Q: Determine the pH of the resulting solution when the following two solutions are mixed: 50.0 mL of…

A: The given information is: Volume of HNO2 = 50ml = 0.050 L Concentration of HNO2 = 0.500 M Volume of…

Q: 0.3872g of an unknown weak acid with general formula HY, was dissolved in water and made up to a…

A:

Q: Calculate the pH of a solution prepared from 0.200 mol of NH,CN and enough water to make 1.00 L of…

A: Given :  To calculate the pH of a solution prepared from 0.200 mol of NH4CN and enough water to make…

Q: When 42.6 mL of 0.100 M Ba(OH)2 is mixed with 98.6 mL of 0.200 M HCI, the reaction goes to…

A: A numerical problem based on pH concept, which is to be accomplished.

Q: 50 ml of an ammonia solution with a specific weight of 1.42 and a purity of 52.2% mixed with another…

A: pH is negative logarithm of Hydrogen ion concentration

Q: A solution is prepared that is initially 0.36M in trimethylamine ((CH3),N), a weak base, and 0.19M…

A:

Q: An analytical chemist is titrating 159.6 ml. of a 0.7000 M solution of diethylamine ((GH), NH) with…

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Q: The pH of 280 mL of a 0.188 M solution of unknown weak base is 11.76.  What is the Kb of this…

A: Determine the pOH of the weak base.

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

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Q: 1. The pH of a buffer solution containing 0.5 mole/litre of CH:COOH and 0.5 mole/litre CH.COONA has…

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Q: The maximum buffering capacity is nearest to the pKa of the buffer. Explain why?

A: A buffer solution is capable of resisting a pH change on addition of small amounts of acid or base…

Q: I prepare a buffer solution by mixing 30.0mL of 0.10M HOAc and 40.0mL of 0.10m NaOAc. I divide this…

A:

Q: 50.0 mL of 0.100 M HBr(aq) is mixed with 50.0 mL of 0.0800 M KOH(aq). What is the pH of the final…

A: No. of mmol of HBr = 50 mL× 0.1M= 5mmol No. of mmol of KOH = 50 mL ×0.08M = 4 mmol

Q: A solution containing 15.0mL of 4.00MHNO3 is diluted to a volume of 1.00L. What is the pH of the…

A: The given volume and molarity of HNO3 are 15.00 mL and 4.00 M. The given volume of diluted solution…

Q: Calculate the pH of a mixture of 0.12 M acetic acid and 0.25 M sodium acetate. The pKa of acetic…

A: Given: Molarity of acetic acid = 0.12 M Molarity of sodium acetate = 0.25 M pKa of acetic acid =…

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: In this question, we want to determine the Ka ( acid dissociation constant ) value of weak acid HA.…

Q: To a 50 mL of 0.1 M HCL solution, 10 mL of 0.1 M NaOH is added and the resulting solution is diluted…

A:

Q: A student has a sea water sample which contains Ca2 ions . Describe briefly how he will determine…

A: To determine the concentration of calcium ions, we have to perform titration with EDTA solution. In…

Q: A solution is prepared that is initially 0.17 M in trimethylamine ((CH,),N), a weak base, and 0.20 M…

A:

Q: Calculate the pH for a 4.3 × 10−8 M HCl solution with an ionic strength of m = 0.1. yH+ = 0.83, yOH−…

A: We have to Calculate the pH for a 4.3 × 10−8 M HCl solution

Q: 1 mL of 0.01 M NaOH and 1 mL of 0.01 M CH3COOH are mixed. What is the pH of the solution. Explain…

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Q: 0.3728, 0.9319, 1.4910 and 1.8638 g aliquots of KCI were dissolved in 4 separate 250 ml samples of…

A: KCl is a salt of strong acid and strong base. As a result, it doesn't undergo hydrolysis when…

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

A:

Q: Equimolar solutions of HF, HCOOH and HCN at 298 K have the values of Ka as 6.8×10^-4, 1.8×10^-4 and…

A:

Q: A solution was prepared by 0.250 moles of ammonium chloride to 500.0 mL of 0.35 M ammonia. Given the…

A: For NH3 , pKb = -log Kb = -log ( 1.86 x 10-5 ) = 5 - log 1.86 = 5 - 0.27 = 4.73 Concentration of…

Q: A solution is prepared using the ammonium/ammonia (NH4+/NH3) acid base pair. The ratio of acid to…

A: Given: Ka = 5.6 x 10-10 ammonium/ammonia (NH4+/NH3) = 0.18

Q: A solution is made by adding 0.320 g Ca(OH)2(s), 35.0 mL of 1.10 M HNO3 and enough water to make a…

A: Given,  Mass of Ca(OH)2 = 0.320 g  Volume of HNO3 = 35.0 mL  Molarity of HNO3 = 1.10 M  Final volume…

Q: A solution is prepared by mixing 80 mL of 0.2 M KH2PO4 and 120 mL of 0.2 M K2HPO4 . What is its pH?

A: Moles of KH2PO4 ( acid), = 0.2 M × 0.08 L = 0.016 mol   Moles of K2HPO4 (base), = 0.2 M × 0.120 L =…

Q: If you have 500 mL of a 0.10 M solution of the acid, what mass of the corresponding sodium salt of…

A:

Q: 2.44 moles of HNO3 is added to water and the final volume is 330mL. The pH of this solution was…

A: Nitric acid is strong acid. Given , pH = 1.47

Q: A solution was prepared by mixing 50.0 mL of 0.10 M HCl and 25.0 mL of 0.25 M NaOH. What is the pH…

A:

Q: 7.5mL of 333mM Tris was added to 192.5ml of water.  The resulting solution was added to 240mL of…

A: The above question is a numerical problem of dilution and the equation used in such case is  M1V1 =…

Q: 3g of benzoic acid (Molecular mass = 122 g/mol) are dissolved in 100 mL of pure water. Calculate the…

A: Ionization of weak monoprotic acid and pH calculation:

Q: Which solution below would have the greatest buffering capacity? The solution was prepared from a…

A: Given, buffer solutions are: 0.197 M HOC2H4NH2 and 0.197 M HOC2H4NH3Cl, Kb = 3.20e-5 0.0966 M NH2OH…

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: A chemist starts her experiments with 25.00 mL of 0.125 mol L-1 NaCN solution. The pKa of HCN =…

A:

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.