Answered: pK, of NH, is 9.26. Hence, effective pH…

pK, of NH, is 9.26. Hence, effective pH range for NH,OH-NH,Cl buffer is about :- (1) 8.26 to 10.26 (2) 4.74 to 5.74 (3) 3.74 to 5.74 (4) 8.26 to 9.26

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter15: Complex Acid/base Systems

Section: Chapter Questions

Problem 15.7QAP

See similar textbooks

Related questions

Q: Differs only in the mass of the is measured instead of its volume. a. Coulometric Titrimetry b. ...

A: Differs only in the mass of the is measured instead of its volume. The answer with explanation is gi...

Q: 3. Draw the Newman projection of the molecule below. Then show the Newman projection for the chair f...

A: Concept: Newman projection formula is the one of the stereochemical technique to write a molecule in...

Q: The following skeletal oxidation-reduction reaction occurs under acidic conditions. Write the balanc...

A: We have to predict the balance reduction half reaction.

Q: Part A Consider the balanced chemical equation. H2O2(aq) + 31 (aq) + 2H+(aq) → I3 (aq) + 2H2O(1) Pre...

Q: Match the colligative property is applied in the given situation. Blake wants to cook macaroni fast ...

Q: Write a balanced chemical equation, including physical state symbols, for the decomposition of liqui...

A: Chemical formula of Nitroglycerin: C3H5(NO3)3 It is one of the powerful explosive that decomposes ...

Q: Solving Name: ECn Spercer Haggard 1. If a block of copper measures 2.00cm x 4.00cm x 5.00cm and weig...

A: Given : We have to calculate the density of Copper block.

Q: Match Column A with Column B. Using UV-Vis, the result of the absorption of coffee is shown in the g...

A: The given graph shows the relation between absorbance and wavelength of light.

Q: Given the following molecules, identify the polarity of the molecules involved and the type of inter...

A: Polar molecules are the molecules having net dipole moment non zero and non polar molecules have net...

Q: Convert 46.8°C to degrees Fahrenheit and kelvin

A: Degree celsius, kelvin, Fahrenheit all these are units for temperature measurements. 1) to convert ...

Q: Reaction: Combustion of H2 with excess O2 mass = 2.4 g delta T = 1.2 oC heat capacity of bomb ca...

Q: Write the equation of the reaction in forming benzalacetone. Identify the electrophile and nucleophi...

Q: at volume of a 0.137 M calcium hydroxide required to neutralize 20.9 mL of a 0.261M droiodic acid so...

A: Given : Molarity of Ca(OH)2 = 0.137M Volume of HI = 20.9 ml

Q: Use the following table for questions 33-36. AH° (kJ/mol) -986.6 Substance Substance AH°; (kJ/mol) N...

Q: Lithium crystallizes in a bcc structure with an edge length of 3.509 Å. Calculate its density. What ...

Q: Caffeine is a natural stimulant most commonly found in tea, coffee and cacao plants. Caffeine is ...

A: Caffine is a natural product who's botanical origine is coffea arabica.

Q: 1-Bromobutane was hydrolysed by an aqueous sodium hydroxide (NaOH) solution. CH3CH2CH2C...

A: At first, we need to plot the concentration versus time.

Q: (Q77) Select all the methods that may generally be used to speed up a reaction: O Grinding a chunky ...

Q: For the reaction given below, the equilibrium constant (in terms of partial pressures) at 100°C is 1...

A: Equilibrium constant is equal to ratio of equilibrium partial pressure of product and equilibrium pa...

Q: 8. What is the product? .NH2 mild acid heat NH2 'N. NH2 `NH II III IV А) I B) П С) I D) IV

Q: created Is C,H1206 being created or destroyed by the chemical destroyed reaction? neither created no...

A: The concentration v/s time curve of C6H12O6 is given as,

Q: Can anyone please help me with to solve this problem?

Q: An air bubble has a volume of 0.490 L at 17 ∘C∘.What is the volume, in liters, at 6 ∘C∘, if nn and P...

A: Given: Initial volume = 0.490 L Initial temperature = 17 oC And final temperature = 6 oC

Q: Using the following graphs: 1) Provide the FAMILY NAME of the elements that make up the majority of...

A: The modern periodic table is based on the atomic numbers of elements. Properties of elements in the ...

Q: Determine the unknown (Abs-0.812) if the absorption of the standard are the following: Standard 1, A...

A: The data of absorbance v/s concentrations is given. And the absorbance of the unknown sample given i...

Q: Problem Solving: Calculate the concentratrion of the caffeine if the molar extinction coefficient in...

A: The formula of absorbance is:- A = Ecl Where A= absorbance = 0.543 E= molar extinction coefficie...

Q: If each of these substances costs the same amount per kilogram, which substance would be the most co...

Q: How long will it take for the concentration of A to decrease from 1.400 M to 0.205 for the zero orde...

Q: Which of the following statements about the ionic bond in ammonium chloride is correct?

A: The correct answer is 2. The ionic bond in NH4Cl is formed by the electrostatic attraction between a...

Q: atch Column A with Column B. Using UV-Vis, the result of the absorption of coffee is shown in the g...

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per...

Q: How many argon atoms are contained in 7.66 x 10 mmol of argon?

A: Given: Moles of argon = 7.66 × 105 mmol = 766 mol. (since 1 mol = 1000 mm...

Q: The best purification method for separating high- vapor pressure solid from its contaminants is by r...

A: Recrystallization is a process which is used to purify chemicals. By dissolving both impurities and ...

Q: Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction...

Q: In 1909, a team of British scientists led by Ernest Rutherford, carried out the Gold Foil Experiment...

A: Gold Foil Experiment helped to determine the arrangement of particles in the atom.

Q: 21. How many grams of water (4.184 J/g°C) can be heated from 20.0 °C to 75.0°C using 12.5 kJ? A) B) ...

Q: A certain reaction is first order in N, and second order in H,. Use this information to complete the...

Q: For the following five reactions: (i) Cl− + AlCl3 → AlCl4− (ii) (CH3)3N + HCl → (CH3)3NHCl (iii) OH...

A: The reactions given are, (i) Cl− + AlCl3 → AlCl4−(ii) (CH3)3N + HCl → (CH3)3NHCl(iii) OH− + H3O+ → 2...

Q: OH (a) (b) (c) NH3, NABH,CN (c) C2, H20 (b) NaOH, H20 (d) (a), H* Vork out the details of the above ...

Q: OH NH2 Неpt + CH3SO,CI + CH3(CH2)NHET H3C (a) (b) (c) (d) (c) SOCI2 (a) + (b) H3PO4 OH Et Неpt (d) (...

Q: Intravenous, or IV, solutions used in medicine must exert the same osmotic pressure as blood to prev...

Q: If a block of copper measures 2.00cm x 4.00cm x 5.00cm and weighs 356g, what is the density of the c...

Q: Biphenyl, C,,H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C,H,. At 25 °C, t...

Q: for ion. Be sure to specify states such as (aq) or (s). If a box is not needed leave it blank. If no...

A: Given, The net ionic equation for the reaction that occurs when aqueous solutions of ammonia and hy...

Q: (Q78) Consider the following rate law: Rate = k [A][B]?[D] Select all the true statements listed bel...

A: The general formula is the following: Rate of reaction = kAxByCz where A, B, C are the concentration...

Q: Please give the both answer....

A: In an electrolytic solution, charges are dispersed throughout the solution. Due to the diffusion and...

Q: (a) Given the following equilibria, calculate what % of the total dissolved Zn species is present in...

Q: 2. Draw the structure of the missing product or reactants: CH,=CH, ? + а. H2C=HC-CH=CH, C=N ? b. с. ...

Q: Ag*(aq) + Al(s) → Ag(s) + Al³+ (aq)

Q: Name the following by numbering the benzene ring. IUPAC- acceptable common names may be used where a...

Q: A 24.6 g sample of a metal is heated to 110.0°C and then placed in a coffee cup calorimeter containi...

A: Answer: This is the question based on energy conservation, one object is losing the heat and other i...

Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

75. pK, of NH," is 9.26. Hence, effective pH range
for NH,OH-NH,Cl buffer is about :-
(1) 8.26 to 10.26
(2) 4.74 to 5.74
(3) 3.74 to 5.74
(4) 8.26 to 9.26

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

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

Calculate the pH change that results when 11 mL of 5.1 M NaOH is added to 790. mL of each the following solutions. Use the Acid-Base Table. (a) pure water 4.0 5.84 (b) 0.10 M NH4CI 4.0 5.43 (c) 0.10 M NH3 4.0✔ X (d) a solution that is 0.10 M in each NH4+ and NH3 4.0✔
Determine the pH during the titration of 62.0 mL of 0.342 M formic acid (K,- 1.8x104) by 0.342 M KOH at the following points. (Assume the titration is done at 25 °C.) (a) Before the addition of any KOH (b) After the addition of 15.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 93.0 mL of KOH
7) The POH of a buffer solution that is 0.080 M aqueous HF acid and 0.042 M NH,F is: (K, of HF = 5.40 x 104) a) 11.0 b) 9.56 c) 2.99
Calculate the pH change that results when 15 mL of 2.7 M HCI is added to 600. mL of each of the following solutions. Use the Acid-Base Table. (a) pure water 4.0 -5.82 (b) 0.10 M CH3COO- 4.0 4.43 (c) 0.10 M CH3COOH 4.0 X (d) a solution that is 0.10 M in each CH3COO and CH3COOH. 4.0
14) 40 ml of 0.0900 HCI is diluted to 100 ml with water and titrated with 0.1000M NAOH. Calculate the pH after the addition of the following volume (ml) of the titrant added: (a) 0.00 (b) 10.00 (c) 18.00 (d) 30.00 (e) 35.95 (f) 36.00 (g) 36.05 (h) 40.00
Determine the pH during the titration of 67.0 ml of 0.375 M formic acid (K, - 1.8x10 4) by 0.375 M KOH at the following points. (Assume the titration is done at 25 °C.) (a) Before the addition of any KOH (b) After the addition of 17.0 ml of KOH (e) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 101 mL of KOH Submit Show Appresch Show Tutar e
A 93.0 mL sample of 0.0100 M HIO4 is titrated with 0.0200 M LIOH solution. Calculate the pH after the following volumes of base have been added. (a) 14.4 mL pH = 2.57 (d) 47.4 mL pH = X X (b) 44.2 mL pH = (e) 78.1 mL pH = X X (c) 46.5 mL pH = X
Calculate the pH change that results when 15 mL of 2.0 M HCI is added to 580. mL of each of the following solutions (a) pure water 4.0-5.70 (b) 0.10 M CH3COO 4.04.28 (c) 0.10 M CH3COOH 4.0 (d) a solution that is 0.10 M in each CH3COO and CH3COOH. 4.0
Addition of the indicator methyl orange to an unknownsolution leads to a yellow color. The addition of bromthymolblue to the same solution also leads to a yellow color.(a) Is the solution acidic, neutral, or basic? (b) What is therange (in whole numbers) of possible pH values for the solution?(c) Is there another indicator you could use to narrowthe range of possible pH values for the solution?
Which solution is a buffer?(a) a solution that is 0.100 M in HNO2 and 0.100 M in HCl(b) a solution that is 0.100 M in HNO3 and 0.100 M in NaNO3(c) a solution that is 0.100 M in HNO2 and 0.100 M in NaCl(d) a solution that is 0.100 M in HNO2 and 0.100 M in NaNO2
Calculate the number of grams of ammonium chloride that must be added to 2.00 L of a 0.500 M ammonia solution to obtain a buffer of pH = 9.20. Assume the volume of the solution does not change as the solid is added. Kb for ammonia is 1.80 * 10-5. (a) 60.7 g (b) 30.4 g (c) 1.52 g (d) 0.568 g (e) 1.59 * 10-5
Ammonia is a convenient buffer system in the slightly basic range. (a) What is the pH of a buffer solution containing 24 g of NH4Cl dissolved in 1.00 L of 0.879 M NH3? pH = 9.5521 (b) How many moles of acid are required to change the pH of this solution by 0.06 pH units? i 0.23 pH = (c) Suppose 4.8 mL of 12.9 M HCI solution is added to 362 mL of the solution of Part (a). Calculate the new pH. mol i 9.08