Answered: How many millilitres of a 0.1 M…

How many millilitres of a 0.1 M solution of NaF and of 0.1 M solution of HF must be mixed to obtain 1L of buffer at pH = 4? Ka = 6.7 × 104

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 49P

See similar textbooks

Related questions

Q: why liquids like mineral oil or acetone are not good at dissolving salts, or why mineral oil and…

A: This is because of the fact that mineral oil are aprotic in nature

Q: 1. Determine the percent composition of the following: a. A scientist analyzes a 50.0g sample and…

A: Here we are required to find the percentage composition.

Q: iv) At STP, one mole of an ideal gas occupies.... a) 10.22 L b) 20.24 L c) 30.22 L d) none of these

A: STP stands for standard temperature and pressure. Standard temperature is 298 K and standard…

Q: Calculate either [H3O+] or [OH−] for each of the solutions. Solution A: [OH−]=1.43×10−7 M; [H3O+]=…

A: Solution which have pH is greater than 7 is basic . and which have pH is less than 7 acidic.

Q: 1. The diagram shows bubbles rising in a glass of fizzy drink. Why do bubbles get larger as they…

A: The solubility of gaseous molecules increases in solvent as pressure is increases. This is proven by…

Q: 1. Why is energy needed to boil water? 2. When water is heated, the temperature eventually reaches a…

Q: 2. Name the following drugs and name their pharmacological groups. H;CO HCI H3CO LOCH3 CH3 NH2 1)…

Q: Consider the reaction 2NH3(g) → N2g) + 3H2(g) What is the rate of NH3 ? A[NH3]/At O-% ANH3]/A! O %…

Q: What is the pH of a buffer solution that contains 20.0mL of 0.10M H2CO3 and 50.0mL of 0.10M NaHCO3?

A: We would use Henderson Hasselbalch equation to calculate the pH of buffer solution.

Q: Summarize the main characteristics of nucleophilic acyl substitution

A: Nucleophilic acyl substitution reaction is a special type of substitution reaction which occurs…

Q: I. Draw the structure or give the systematic name of the following: CH CH;CHCH,CCHCH; ÓH ČH2CH3 2.…

A: Given, Given IUPAC names of the given compounds = ?

Q: How much of NaOH (in mg) do you need to make 33ml of a 82% (w/v) NAOH solution (Mr(NaOH) = 40.00).…

Q: What reactant should be used to form the following product after adding OsO4 and NMO? HO OH a) c) d)…

Q: If the initial reactant concentration of a first order reaction is 1.60 M, what would be the…

A: Given :- Reaction is first order Initial concentration of reactant = 1.60 M Half life = 9 s To…

Q: Which equation should the students use to calculate the percent yield? Calculate the percent yield…

A: Given that - Theoretical yield of acetaminophen (paracetamol) = 7.82 g Actual yield of group 1 =…

Q: How do I prepare 100 mL of 5% NaNO2, 100 mL of 10% AlCl3 and 100 mL 1 M NaOH?

A: Consider the given information is as follows; Preaparation of 100 mL of 5% NaNO2 Preaparation of…

Q: Calculate Kp for the following reaction: * PCI,(g) + Cl,(g) = PCl,(g) K. = 1.67 (at 500. K)

A: Given: Kc = 1.67 Temperature = 500 K

Q: Polyamides can be produced from O two monomers, one containing two amino groups, the other…

Q: Provide an arrow pushing mechanism for the following reaction. Include protons and each step clearly…

Q: drug passing throughn a 1-mm-thick membrane has a diffusion coefficient f 4.23 10-7 cm? per second.…

A: The answer is attached below-

Q: An unknown amount of copper(II) ions produces a faradic current of 12.3 A on a normal pulse…

Q: b) the mass of used acetylene in pounds 0.734 0.434 0.299

A: 40 inches long and 6 inches diameter a drum contains acetylene at a initial pressure of 250 psia…

Q: Titanium(IV) and vanadium(V) form colored complexes when treated with hydrogen peroxide in 1 M…

Q: The nucleus of an isotope, mass 203.3168 amu, contains 81 protons and 121 neutrons. Calculate the…

A: ★ Answer : Binding energy of the nucleus will be 2.99 × 108 eV. ★ Solution :

Q: Co ligand insertion oc | CH, to co co co n-CHOCH, oc čo oc OCH, OCH, čo CHOCH, o0 Co B D E O A O B…

Q: 5. The initial volume of a balloon is 118 mL. If the pressure of the gas inside the balloon changes…

Q: 2. a) Draw the most stable chair confomation of: cis 1,3-dichlorocyciohexane b) Draw a Newman…

A: The structures of the organic compounds given are

Q: What is the product of the reaction P4O6 + H2O? A) H3PO4 B) H2PO4 C) H3PO3 D) H2PO3 E) H2P4O7

A: Which one of the following is correct answer

Q: y protons and neutrons are in each of the following nuclides? d. 21482P. b. 23491 Th c. Bi-212

Q: into the indicated products. Identify the substrate, reagent(s) and catalyst if any used for each…

Q: The following are properties of ionic compound: Except for

A: Crystalline solids can be defined as solids in which atoms are arranged in definite pattern.

Q: Write the net-ionic, acid-base reactions that would occur in order to dissolve the precipitate…

Q: What would the potential of a standard hydrogen electrode (S.H.E.) be under the following…

Q: 6. The amount of calcium present in milk can be determined by adding oxalate to a sample and…

A: Na2C2O4 (aq) + Ca2+(aq) →CaC2O4(s) + 2Na+(aq) number of moles of Ca2+(aq) = number of moles of…

Q: HCN +HPO4 2- CN-1+H2PO4-1 Which specie is conjugate acid?

A: Conjugate acid contains one more proton than base.

Q: Balance the following electrochemical reaction in acid: MnO 4 (aq) + Zr( s) → Mn –"( aq) + Zr + Zr…

Q: Consider the following electrochemical cell notation with a cell potential of 1.22 V. Pt(s) | H2(g,…

Q: Given that u 0.25Katm- for nitrogen, calculate the value of its isothermal Joule-Thomson…

A: The equation for Joules-Thomson coefficient is μT, μT=-Cp×μ For diatomic molecule nitrogen, Cp = 7/2…

Q: Write an equation for the aldol condensation of two molecules of propanal.

A: For aldol condensation reaction alpha hydrogen are required and strong base is used

Q: What is the molality of a solution made by dissolving 23.9 grams of LiI in 260 grams of water?…

Q: 7. CH, - OCH,CH, + H,O= OCH,CH,

Q: What is the mass of a golf ball traveling at 88.1 ms1? The rest mass of a golf ball is 45.9 g, as…

Q: Starting from the expression for the total differential dV in terms of T and p, show that (ôp / aT),…

A: Here we are required to prove the following differential

Q: he volume w

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

Q: explain substitution reactions in simpler terms?

Q: A soil was measured for cation exchange by leaching 15 g of soil with 80 mL of solution of 1 M…

Q: pH Practice Problems You may want to use Google Calculator so that you can enteriread longer numbers…

Q: Question 17 For the fullowing coordination complex:(Fe(CO,O4)(H,0)) are pre se nt lif none State…

A: Interpretation- We have to tell about that which type of geometrical isomerism is showing by the…

Q: NaOH, H20 Cl CH2OH ÇO,H ÇO,H ÇO.H C) D) B) A) Cl HO, Cl CH2ONA ČH2OH CH,OH ČO,H

A: ->NaOH is base hence, it can abstract most acidic hydrogen present in the given compound.

Q: The measured cell potential, Ecell, for the cell shown is –0.3549 V at 25 °C. Calculate the H*…

A: If standard reduction potential values of two half cells are given then the half cell with less…

Concept explainers

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.

Question

How
many
millilitres of a 0.1 M solution of NaF and of 0.1 M solution of HF
must be mixed to obtain 1L of buffer at pH = 4? Ka = 6.7 × 104

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A 10.00-g sample of the ionic compound NaA, where A is the anion of a weak acid, was dissolved in enough water to make 100.0 mL of solution and was then titrated with 0.100 M HCl. After 500.0 mL HCl was added, the pH was 5.00. The experimenter found that 1.00 L of 0.100 M HCl was required to reach the stoichiometric point of the titration. a. What is the molar mass of NaA? b. Calculate the pH of the solution at the stoichiometric point of the titration.
What mass of NH4Cl must be added to 0.750 L of a 0.100-M solution of NH3 to give a buffer solution with a pH of 9.26? (Him: Assume a negligible change in volume as the solid is added.)
A diprotic acid, H2B(MM=126g/moL), is determined to be a hydrate, H2B xH2O. A 10.00-g sample of this hydrate is dissolved in enough water to make 150.0 mL of solution. Twenty-five milliliters of this solution requires 48.5 mL of 0.425 M NaOH to reach the equivalence point. What is x?
Without doing detailed calculations, sketch the curve for the titration of 30.0 mL of 0.10 M NaOH with 0.10 M HCl. Indicate the approximate pH at the beginning of the titration and at the equivalence point. What is the total solution volume at the equivalence point?
When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence point is reached when 35.00 mL base has been added. After 20.00 mL NaOH solution has been added, the titration mixture has a pH of 5.75. Calculate the ionization constant of the acid.
A buffer is prepared by adding 35 mL of 0.100 M hypochlorous acid, HOCl, to 65 mL of 0.300 M hypochlorite, OCl ̄. What is the pH of the final solution? (the Ka hypochlorous acid of is 3.5 x 10-8)?
Suppose that a 1000 mL buffer (pH=5) solution will be prepared using 2.6g C6H5COOH (its Ka is 6x10-5) and 2.6g NaC6H5COOH in H2O. How much (in g) of the component of the buffer should be added in the 1000mL buffer so that its pH will be 3?
A buffer solution is 0.444 M in CH3COOH and 0.346 M inCH3COONa . If Ka for CH3COOH is 1.8×10-5 , what is the pH of this buffer solution?
A sodium hydrogen carbonate/sodium carbonate buffer system is to be prepared with a pH of 9.89. The relevant pKa valueis 10.33. What volume of 0.1066 M HCl must be added to 750 mL of 0.132 M Na2CO3 to obtain this pH?
a. A formic acid/sodium formate buffer solution can be prepared with 0.012 M each offormic acid (HCOOH) and sodium formate (NaCOOH). The Ka for formic acid is1.8 x 10-4. The simultaneous equilibrium reaction is as shown below. Calculate the pH andthe buffer capacity of the solution.
When 25.0 mL of 0.20M weak acid (HA) is titrated with 45.0 mL of 0.18 M NaOH solution, the resulting pH will be: (Ka of HA is 2.0 x 10-9)
What is the pH of a buffer solution consisting of 0.0350 M NH3 and 0.0500 M NH4+ (Ka for NH4+ is 5.6 x 10-10)?