1,2-diaminoethane, H₂N-CH₂-CH₂-NH2, is used extensively in the synthesis of compounds containing transition-metal complexes in water. If pKh1 =3.29 and pK62-6.44, what is the pH of a 2.49x104 M solution of diaminoethane?

1,2-diaminoethane, H₂N-CH₂-CH₂-NH2, is used extensively in the synthesis of compounds containing transition-metal complexes in water. If pKh1 =3.29 and pK62-6.44, what is the pH of a 2.49x104 M solution of diaminoethane?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter14: Acids And Bases

Section14.6: Molecular Structure And Acid Strength

Problem 14.14CE

See similar textbooks

Related questions

Q: How do i draw the VSEPR diagrams for CH3CCOH and for H3AsO4 (no oxygen to oxygen bonds)?

A: The full form of VSEPR is valence shell electron pair repulsion theory. According to this the shape…

Q: Which of these properties is/are characteristic(s) of gases? O High compressibility. O Relatively…

A: Particles of gas are in random and ceaseless motion. The moving particles collide with each other…

Q: The energy associated with chemical processes is often quoted in kilojoules per mole of reactants.…

Q: Looking up one snowy afternoon from a book titled The Moral Case Against Turning Lead Into Gold (Or…

Q: Identify the best reagents to complete the following reaction. A B O D H₂O pyridine PHCH₂OH pyridine…

Q: Which of the following statements concerning the structures below is/are true? Formal charges are…

A: A Lewis structure is a diagrammatic representation indicating how the valence electrons are arranged…

Q: Be sure to answer all parts. Part 1: Predict the product of the following reaction. Part 2 out of 2…

A: Alkene gives an electrophilic addition reaction with borane. Alkene reacts with BH3 and then NaOH…

Q: C. SO3 H₂SO4

A: Benzene and its derivatives react with SO3 , H2SO4 to produce benzenesulfonic acid or its…

Q: Add any remaining curved arrow(s) to complete step 1 of the mechanism, and modify the given…

A: Tautomers are the structural isomers and that isomers interconvert with each other.The concept is…

Q: A student wanted to make large alum crystals, larger than what was made in the lab. Her goal was to…

A: A crystal formed from aluminum is known as alum crystal. The percent yield of the formation of the…

Q: Draw the structure of the major product and clearly indicate regiochemistry and stereochemistry…

A: Secondary alkyl halide reacts with base NaOEt and gives elimination product i.e alkene in major…

Q: Consider this acid-base titration curve. OH™ 12 H₂O* 10- 8- 6. 4 2- 10 •A ç.. 20 30 40 Volume…

A: Answer:Since, on adding the volume of titrant, pH of the solution is decreasing, therefore it is…

Q: Magnesium fluoride (MgF2, MW = 62.30 g/mol) is slightly soluble in water, with Ksp = 7.4 x 10^-11 at…

A: (a) Balanced solubility equilibrium equation for MgF2 is MgF2 (s) <=> Mg2+ (aq) + 2F- (aq)

Q: 2. Obtain an equation describing how the degree of polymerization, which represents the average…

A: Given that, for a condensation polymerization reaction, the time-dependent rate law is d[M]/dt =…

Q: Bay Water Titration The concentration of Cl- in ocean water is about 500-600 mM. The baywater is…

A: In the provided scenario, a chemical analysis is performed to determine the chloride ion…

Q: Complete the equation for this crossed Claisen condensation. OEt (excess) + OEt 1. Eto Na+ 2. H₂O,…

Q: How many regions of electron density is in Ammonium sulfide?

A: We are to discuss the regions of electron density in ammonium sulfide.VSEPR (Valence Shell Electron…

Q: 8.000 g of Compound X with molecular formula C₂H6 are burned in a constant-pressure calorimeter…

Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

A: The initial volume = 10.0 LThe initial pressure = 239 kPaThe final volume = 89.0 LThe final pressure…

Q: Draw the major elimination and substitution products formed in this reaction. Use a dash or wedge…

A: Given that, the reaction is:

Q: Show all organic products

A: One of the important reactions of alkene is ozonolysis. In the ozonolysis reaction, the…

Q: 21.26 A student conducting undergraduate research is studying an enzyme in the laboratory. She…

A: b) The rate will increase rapidly at first and then gradually level off at a constant high rate.

Q: Be sure to answer all parts. Complete the reactions to show the synthesis of the following compound…

A: Detail mechanistic pathway is given below to carry out the following conversion

Q: (5) Calculate the activity coefficient for Ce in a solution of 0.040M FeSO4.

A: A solution of Ce4+ in FeSO4. Concentration of FeSO4 solution = 0.040 MWe have to determine the…

Q: Draw the major product of the substitution reaction shown below. Ignore any inorganic byproducts.…

A: This is an SN1 reaction where first of all carbocation intermediate is formed which is then…

Q: ▼ Part A a solution that is 0.17 M in HCHO₂ and 0.13 Min NaCHO₂ (K₂ (HCHO₂) = 1.8 × 10-¹) Express…

A: The question is based on the concept of the pH of the solution.It is defined as a negative logarithm…

Q: Question 2: myo-Inositol is a growth factor in humans and micro-organisms, the structure of which is…

A: Given compound is myo-Inositol.The least stable chair conformation is one in which maximum groups…

Q: Provide the product structure from the reaction of Cis-1-iodo-2-methyl- cyclohexane with NaSCH 3.

Q: Question 1: 1,4-dimethylcyclohexane can exist in two diastereomeric forms, cis and trans. The…

A: The conformational isomers are formed by the rotation of a carbon-carbon single bond in a…

Q: 1) Magnesium fluoride (MgF2, MW = 62.30 g/mol) is slightly soluble in water, with Ksp = 7.4 x 10-¹¹…

A: Information of question

Q: Which of the following disaccharides is a non-reducing sugar? -ОН НО. ОН НО ОН -ОН ОН ОН но НО НО ОН…

A: Given,The molecules are:

Q: What is the predicted major product of the reaction shown? 1.. 11 ||| IV OC(CH₂) ILL ||| IV V

A: We have to draw the major product of the given reaction.

Q: Which of the following molecules would be expected to have the highest molar entropy? O ethane O…

A: Higher the molecular weight greater is the molar entropy

Q: A 10% (w/v) (NH4)2SO4 standard is needed. How much solute would be needed to mak 50 mL?

Q: 0 OH Dilute HCI H2O

A: Alcohols on heating in presence of acid undergo dehydration through Carbocation intermediate to form…

Q: Draw the lewis dot structure. 1) CH2F2 2) AlCl3 3) CIO4- 4) PCl5 5) XeOF4 6) NH4+

A: 1) CH2F22) AlCl33) CIO4-4) PCl55) XeOF46) NH4+

Q: CH3CH₂ONa CH₂CH₂OH Br (CH3)3CONa (CH3)3COH Br CH₂CH₂OH A CH,CH,ONa [3.] Acetone

A: The given reactions are shown below.We have to predict the major product of each reaction.As per…

Q: Click the "draw structure" button to launch the drawing utility. What is the product of the below…

A: Organic compounds can be defined as compounds that contain carbon and hydrogen atoms. We have been…

Q: Which statement is NOT true for weak acids (HA)? A) Weak acids are partially dissociated in aqueous…

A: On the basis of their extent of dissociation, Acids are classified as strong acids and weak acids,…

Q: Which of the following images best represents the net dipole moment for this molecule? A B C D

A: The product of the magnitude of the charge and the distance between the centers of the positive and…

Q: If 176.8 kilojoules of heat were released when iron, Fe, was burned to form Fe₂O3(s) at standard…

A: Heat released when iron is burned to form Fe2O3 = 176.8 kJMass of iron,Fe=?

Q: Characterize each of the following as product- or reactant-favored at equilibrium. CO2 (g) = CO(g)…

Q: Give the IUPAC name for the following compound, including the R,S designations for each stereogenic…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by…

Q: By controlling the pH of an aqueous solution it is possible to control the formation of a…

A: It is defined as the equilibrium constant for a solid to dissolve to form an aqueous solution. The…

Q: What is the pOH of a 0.089 M NaOH solution at 298K?

A: [NaOH] = 0.089 M at 298 K Calculate pOH

Q: Which of the following can be used to make 2-butene as the major product? HO OH Br Br CI 1. TsCl.…

A: The question is based on organic reactions.We need to identify the product and explain its…

Q: Determine the bond order for Al2

A: Information of question

Q: Name this molecule using the systematic nomenclature rules used in the textbook and in class. Use…

A: Answer:IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as…

Q: Draw an acceptable Lewis structure for the molecular ion (radical cation) formed from this molecule…

A: It is a very simplified representation of the valence shell electrons in a molecule. It is used to…

Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

1,2-diaminoethane, H₂N-CH₂-CH₂-NH2, is used extensively in the synthesis of compounds containing transition-metal
complexes in water. If pKb1-3.29 and pK62-6.44, what is the pH of a 2.49x104 M solution of diaminoethane?

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: Define pH

VIEW

Step 2: Calculate degree of dissociation

VIEW

Step 3: Calculate pH

VIEW

Solution

VIEW

Step by step

Solved in 4 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

Consider two acids: HCO2H (formic acid, pKa = 3.8) and pivalic acid [(CH3)3CCO,H, pK = 5.0]. (a) Which acid has the larger K? (b) Which acid is the stronger acid? (c) Which acid forms the stronger conjugate base? (d) When each acid is dissolved in water, for which acid does the equilibrium lie further to the right? %3D The pKa values in Table 2.1 span a large range (-7 to 50). The pK, scale is logarithmic. small difference in pK, translates into a large numerical difference, For example, the diffe between the pK, of NH3 (38) and CH2=CH, (44) is six pKa units. This means that NH, is one million times more acidic than CH,=CH,.
What is the pH of a solution that is 0.14 M C,H;NH2 (ethylamine) and 0.51 M C;H;NH;Br (ethylammonium bromide)? K, (ethylamine) = 4.7 x 10 4 pH =
COHSOH(ag) + H2On + CeHsO (aq) + H3O*(a9) Ka= 1.12 x 10-10 (a) Phenol is a weak acid that partially dissociates in water according to the equation above. Write the equilibrium-constant expression for the dissociation of the acid in water. (b) What is the pH of a 0.75 M CaHsOH(ag) solution? (C) For a certain reaction involving CaHsOH(ag) to proceed at a significant rate, the phenol must be primarily in its deprotonated form, C3H5O (eg). In order to ensure that the CsHsOH(aq) is deprotonated, the reaction must be conducted in a buffered solution. On the number scale below, circle each pH for which more than 50 percent of the phenol molecules are in the deprotonated form (CoHsO (aq). Justify your answer. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Justification: (d) CeHsOH(ag) reacts with NaOH(ag). Write a net ionic equation representing this reaction (aka: invasion equation). (e) What is the pH of the resulting solution when 30 mL of 0.40 M CSH5OH(aq) is added to 25 mL of 0.60 M NAOH. Show all work…
Like any equilibrium constant, Kw changes with temperature. (a) Given that autoionization is endothermic, how does Kw change with rising T ? Explain with a reaction that includes heat as reactant or product. (b) In many medical applications, the value of Kw at 37°C (body temperature) may be more appropriate than the value at 25°C, 1.0 x 10-14. The pH of pure water at 37°C is 6.80. Calculate Kw, pOH, and [OH-] at this temperature.
1. The following equilibrium exists when ammonium is dissolved in water: NH4+ (aq) + H2O (l) « H3O+ (aq) + NH3 (aq) The Ka of NH4 is 5.6 x 10-10. Find the pH of a 3.00 M solution of NH4Cl. (hint: since NH4Cl completely ionizes, the concentration of the ammonium ion is 3.00 M) NH4Cl (s)àNH4+ (aq) + Cl- (aq)
Consider two acids: HCO2H (formic acid, pKa = 3.8) and pivalic acid [(CH3)3CCO2H, pKa = 5.0]. (a) Which acid has the larger Ka? (b) Which acid is the stronger acid? (c) Which acid forms the stronger conjugate base? (d) When each acid is dissolved in water, for which acid does the equilibrium lie further to the right?
4. A student has prepared 0.05 M solution of CH3-C=CH and has added to it 0.05 M solution of potassium tert-butoxide (K" O-C(CH3)3). (i) Write the equation for the acid-base reaction that might occur. (ii) With curved arrows track the movements of electron pairs. (iii) Assign Base, Acid, Conjugate acid for the base, Conjugate base for the acid. (iv) Calculate the percentage of deprotonated methyl acetylene taking into account that pKa of the conjugate acid of potassium tert-butoxide equals 18 and pKa of methyl acetylene equals 24.
A solution of sodium acetate is prepared using 0.56 mol L-1 NaOH as the solvent. The pKapKa of acetic acid is 4.75 . The concentration of sodium acetate after mixing, before any reaction takes place is 0.44 mol L-1 . Calculate the equilibrium concentrations of all acid species: [ CH3COOH ], [ CH3COO- ], the pH and the pOH in the solution. Some assumptions may not work, on the other hand, if you do not make the correct assumptions first, the quadratic formula will give you the wrong answer. [ CH3COOH ] = ___mol L-1 , [ CH3COO- ] = ___mol L-1 , pH = ___ pOH = ____
Benzoic acid (C6H5COOH) and aniline (C6H5NH2) areboth derivatives of benzene. Benzoic acid is an acid withKa = 6.3 x10-5 and aniline is a base with Ka = 4.3 x10-10. (a) What are the conjugate base of benzoic acid andthe conjugate acid of aniline? (b) Anilinium chloride(C6H5NH3Cl) is a strong electrolyte that dissociates intoanilinium ions (C6H5NH3+) and chloride ions. Which willbe more acidic, a 0.10 M solution of benzoic acid or a 0.10M solution of anilinium chloride? (c) What is the value ofthe equilibrium constant for the following equilibrium?C6H5COOH(aq) + C6H5NH2(aq) ⇌ C6H5COO-(aq) + C6H5NH3+(aq)
3) 4 7 8. 9. 10 11 12 13 A solution is prepared at 25 °C that is initially 0.44M in diethylamine ((C,H,),NH, a weak base with K,=1.3 × 10 °, and 0.072M in diethylammonium chloride ((C,H5), NH,CI). Calculate the pH of the solution. Round your answer to 2 decimal places. pH = Submit Assignr Cornue
Phosphoric acid is a tri-acid. It is often associated to biological molecules (i.e. proteins, lipids) in the form of phosphate group. Its ionisation state depends on the pH of the solution and of its pKa values. Data: pka₁ = 2.1; pKa₂ = 7.2 ; pka3 = 12.4 1- What are the forms present at physiological pH (7.4) ? 2- Indicate which form is the most prominent.
An acetic acid solution was prepared by dissolving 0.02 moles of acetic acid (HOAC) in water to give a final volume of 1L. The Ka of HOAC s 1.82 x 10°. (a) Calculate the pKa of acetic acid (b) Calculate the pH of the acetic acid solution (c) If 0.012 moles of concentrated NaOH was added to your prepared solution from above, what is the new pH (There is no appreciable chareo ine volumes).