If 35.09 of KCNIS added to 500mL of ater, what is the final Concentrahon of hydrocyanic acid? (Lšthe Spectator) K = 2.5x10 aserassium Potassium -5 HCN + OH cag) CN caqst Hho H CN+ OH "Caqs (),

Q: The K of bromocresol gteen is 126. x 10-5 At Whot PH WOuld you expect the endlotht for this…

A: The color of the bromocresol indicator is green in acidic solution  Suppose HIn represents the…

Q: What is the [OH¯] of a 3.50 M solution of pyridine (C5H5N, Kb = 1.70 × 10-9)?

A: Pyridine is a weak base so in solution the OH- concentration of pyridine will be very much less. It…

Q: O for coch of the following equatuns caleulate the reoles and graws of each prochuct if you start…

A: Given :-  NH3 + HCl → NH4Cl  number of moles of NH3 = 0.500 mol  To calculate :- amount of NH4Cl…

Q: For each of the salts on the left, match the salts on the right that can be compared directly, uaing…

A: Ksp can be compared directly if two compounds dissociates into the same number of ions per molecule.…

Q: Why are buffer solutions of increasingly higher pH used to elute the column that generates the…

A: The reason is as given below:

Q: In a 2.31M C2H5NH2 aqueous solution, determine the percentage of ionised C2H5NH2 molecules. Kb is…

A: We have to calculate the percentage ionization of given weak base.

Q: Quer > How mauy gram ef sodium Nitrate mult be many guram added to 230 ml of 0.15M nitrou aud in…

A: Molar mass of sodium nitrate: 85 g/mol Given, pKa of nitrous acid: 3.337 pH: 4.37 Nitrous acid…

Q: What is the percentage of a total acid expressed as acetic acid (HC2H3O2) in a sample of vinegar if…

A: The quantitative chemical reaction of an acid and a base with each other is known as neutralization…

Q: iven the Ksp of the three salts below, calculate their molar solubi ost conductive to least…

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Q: A student performs a titration on a 5.00 mL sample of an HBr solution. She uses 24.32 of a 0.459 M…

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Q: Calculate the [OH−] of a solution of 0.1595 M C5H5NH3F if Kb = 1.800e-9 for C5H5NH2?

A: The equilibrium constant for a reaction is expressed in terms of the ratio of the concentration of…

Q: what Volume in milliiters 12.0M HCl 8olution is nzeded do prepase 250.0 me goluti on at O.50OM? of a…

A: Mole is the unit of measurement for the amount of substance and one mole has Avogadro…

Q: NHINHS A mmonium ion + amnoonia Making a buffe. e aud 0-lDM 215omL of base The measure eta the…

A: The given case is a buffer solution. So, according to Henderson equation :  pH = pKa +…

Q: You need to prepare 2.21 L. of a HF/NaF buffer that has a pH of 3.95 and an osmotic pressure of L.I1…

A: Given, Volume of the buffer = 2.21L pH value of the buffer = 3.95 Osmotic pressure of the buffer =…

Q: Find the Concentration of acetate buster ? Given Am acetate butfor Contains 250mL of 5M Na CH 3 C00…

A:

Q: Q4 How many grams of sodium hydroxide (M.wt-58.5) can be added to 25 liter of a solution mixture of…

A: •Solution of ammonia and ammonium chloride is a basic buffer solution.

Q: What HPO4 2- to H2PO4 - ratio is needed to maintain the optimum blood pH of 7.40?

A: This problem can be solved by using Henderson equation which may be given by ; pH=pKa+logsaltacid

Q: 08 8 7 LO R %24 Ellucian Experience X fn Course: 21F 67914 x *colloids.pdf X PDE Test 2 Lecture 8.pd…

A: The reaction is said to be in equilibrium when the rate of forward reaction becomes equal to the…

Q: the cancentration of acetic acid Calculate wnen it Oi145m Noao solution o titrate 34.95 mL of aur…

A: During titration, at the equivalence point, No of moles of acid = No of moles of base As Molarity =…

Q: What is the percent ionization of a 0.50 M HC2H3O2 solution (Ka = 1.8 x 10-5) at 25°C? O 0.15 % 0.38…

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Q: Wite Moteular Equation, Total ionia og uationand nat ionic egunation f he followin leactions.…

A: Given, Reacting chemical species. Na2CO3  & HCl Na2CO3  & KCl Na2SO4 & BaCl2

Q: A solution is made from 0.42 M HCIO and 0.45 M NacIO. What is the pH, if the Ka for HCIO is…

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Q: 12. Percent (m/v) HC,H.O, in vinegar (Show calculations.) % HC H,O,

A: A numerical problem based on quantitative analysis, which is to be accomplished.

Q: If 500mL of 0.1IF lead altrate solution is added to 1L of 0.25F potossium lodate, calculate : a.…

A:

Q: Calculate [H3O + ] and [CH3COO− ] in an aqueous solution that is 0.100 M in both CH3COOH and…

A: Introduction: pH: pH is used to express the acidity of the solution. It is defined as the negative…

Q: What is the percent ioniation of 0.0550 M solution of HC2H202?

A: Strategy: Write the ionization equation and the expression for Ka. Next, find the concentration of…

Q: Prepare the prescription: 0.5% Ephinephrine hydrochloride (E = 0.29) Sterile water qs to make 30 ml…

A: Given, 0.5 % Epinephrine hydrochloride  ( E = 0.29 ) Sterile water qs to make 30 mL M.ft. isotonic…

Q: Q: Arrange he following Salts in order of increning Sulubility (4t Aluminum bydronide [AI COH),7…

A: that salt will be more soluble which has more solubility constant .

Q: Ka

A:

Q: Sketch the distribution diagram for orthophosphates as a function of pH, using the following K,…

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

Q: rite the expression for the Ka when HC₂H3O2 is dissolved in water 2H3O2 + H₂O C₂H3021 + H30+1 ][ Ka…

A:

Q: What is the percent ionization of a 0.50 M HC2H3O2 solution (Ka = 1.8 x 10-5 ) at 25°C? O 0.15 %…

A: Given: Concentration of HC2H3O2 = 0.50 M And Ka of HC2H3O2 = 1.8 X 10-5  Since HC2H3O2 is a weak…

Q: Ble Blue cooY 2. How does abserbance vary with Concentration ef the Copper (IT) Solution? 3. Hou do…

A: Given information Concentration of  Solution Absorbance 0.1 M 0.31 0.2 M 0.61 0.4M…

Q: A solution is made from 0.39 M HF and 0.31 M NaF. What is the pH of the K, for HF is 6.8x10 4?…

A: Given data, here HF is a weak acid and NaF is a salt. Concentration of HF ,[HF]=0.39 M Concentration…

Q: by the mohY melhof a 0.3172gm 8ample is dissolved in 5oml of water and titration to tne Aggcrou enel…

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Q: The ?a of HCNHCN is 6.2×10−10.6.2×10−10. What is the ?b value for CN− at 25 °C?

A: HCN(aq) <.......> H+(aq) + CN-(aq) Ka = 6.2×10-10

Q: 7. Calculate the titer of sodium chloride in the solution prepared from 3.6 g NaCl and 390 mL of…

A: Given: The mass of sodium chloride, NaCl, is 3.6 g. The volume of water is 390 mL and the density of…

Q: Find the concentration of [H] in 2.25 M sodium dihydrogen phosphate (NaH2PO4) solution given that…

A: Given : Ka1 = 7.5 × 10-3 Ka2 = 6.2 × 10-8 Ka3 = 4.8 × 10-13 Concentration of NaH2PO4 = 2.25 M

Q: What is the percentage of total acid expressed as acetic acid (CH3COOH) in a sample of vinegar if…

A:

Q: 4. A solution was prepared by dissolving 0.541 g of benzoic acid (HC,HSCOO) in 100 mL of water. The…

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Q: (ksp) The soubiliy of caicium phosphare, CA3(POe, IS 7.1 x 10-7 mole Ines What are the molar…

A: Given, [Ca3(PO4)2] = 7.1×10-7 M  Calculate concentration of its ions ?

Q: How can we distinguish the following compounds and provide ppm values in order the elaborate your…

A: 1) The first compound will give 3 peaks in 1-H NMR spectrum whereas the second compound will give 4…

Q: Lwhet volume ta al- O.225 M hytrochelic acid is needed to complety neutralize 25.0 me oF 0.150 M…

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Q: In which of the following aqueous solution Kf is maximum? Options 1 M NaCl O 0.7 M H2SO4 0.8 M AIC13…

A: Colligative properties are the properties of aqueous solutions in which they depend upon the…

Q: What is the percent ionization of a 0.50 M HC2H3O, solution (Ka = 1.8 × 10-5 ) at 25°C? 0.42 % 0.15…

A: Given: Concentration of HC2H3O2 = 0.50 M And Ka of HC2H3O2 = 1.8 X 10-5  Since HC2H3O2 is a weak…

Q: The acid-base indicator ethyl orange turns from red to yel-low over the pH range 3.4 to 4.8.…

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

Q: What is the pH of a sol that is 0.15m in CH3coone and 0.20m in ch3cooh the ka of ch3cooh is 1.8x10-5

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Q: Percentage ionization in 0.20M solution

A: CH3COOH                  ⇌             H+             CH3COO-…