EP BASIC CHEMISTRY-STANDALONE ACCESS
6th Edition
ISBN: 9780134999890
Author: Timberlake
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Question
Chapter 14.5, Problem 34PP
Interpretation Introduction
Interpretation: Meaning and value of Kw at 25 degree C.
Concept introduction:
- According to Le Chatelier, if you increase the temperature of the water the equilibrium will move to lower the temperature again. It will do that by absorbing the extra heat.
- That means that the forward reaction will be favored, and more hydrogen ions and hydroxide ions will be formed. The effect of that is to increase the value of Kw as temperature increases.
Chemical equilibrium is the state in which both reactants and products are present at concentrations which have no further tendency to change with time.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The pOH of an aqueous solution of 0.591 M phenol (a weak acid), C,H5OH, is
Use the Referenc
The pOH of an aqueous solution of 0.313 M acetylsalicylic acid (aspirin), HC9H¬O4, is
The neutralization of a strong acid and strong base has an enthalpy change, ∆H°, = -55.9 kJ/mol. The net ionic equation for this reaction is H⁺(aq) + OH⁻(aq) ⇌ H₂O(l) which is the reverse of the autoionization of water, and therefore ∆H° for the autoionization of water = +55.9 kJ/mol. Kw for the autoionization of water is 1.0 × 10⁻¹⁴ at 25°C. Distilled water has a [H⁺] = 1.0 × 10⁻⁷ M and a neutral pH of 7.0. Calculate the neutral pH of distilled water at 65°C.
Chapter 14 Solutions
EP BASIC CHEMISTRY-STANDALONE ACCESS
Ch. 14.1 - Indicate whether each of the following statements...Ch. 14.1 - Prob. 2PPCh. 14.1 - Prob. 3PPCh. 14.1 - Prob. 4PPCh. 14.1 - Write formulas for each of the following acids and...Ch. 14.1 - Write formulas for each of the following acids and...Ch. 14.2 - Identify the reactant that is a Brønsted-Lowry...Ch. 14.2 - Identify the reactant that is a Brønsted-Lowry...Ch. 14.2 - Write the formula for the conjugate base for each...Ch. 14.2 - Write the formula for the conjugate base for each...
Ch. 14.2 - Write the formula for the conjugate acid for each...Ch. 14.2 - Prob. 12PPCh. 14.2 - Prob. 13PPCh. 14.2 - Prob. 14PPCh. 14.2 - When ammonium chloride dissolves in water, the...Ch. 14.2 - Prob. 16PPCh. 14.3 - What is meant by the phrase "A strong acid has a...Ch. 14.3 - Prob. 18PPCh. 14.3 - Prob. 19PPCh. 14.3 - Prob. 20PPCh. 14.3 - Prob. 21PPCh. 14.3 - Prob. 22PPCh. 14.3 - Prob. 23PPCh. 14.3 - Prob. 24PPCh. 14.3 - Prob. 25PPCh. 14.3 - Write an equation for the acid-base reaction...Ch. 14.4 - Answer True or False for each of the following: A...Ch. 14.4 - Answer True or False for each of the following: A...Ch. 14.4 - Consider the following acids and their...Ch. 14.4 - Prob. 30PPCh. 14.4 - Phosphoric acid dissociates to form hydronium ion...Ch. 14.4 - Prob. 32PPCh. 14.5 - Why are the concentrations of H3O+ and OH equal in...Ch. 14.5 - Prob. 34PPCh. 14.5 - Prob. 35PPCh. 14.5 - Prob. 36PPCh. 14.5 - Indicate whether each of the following solutions...Ch. 14.5 - Indicate whether each of the following solutions...Ch. 14.5 - Calculate the [H3O+] of each aqueous solution with...Ch. 14.5 - Prob. 40PPCh. 14.5 - Calculate the [OH] of each aqueous solution with...Ch. 14.5 - Prob. 42PPCh. 14.6 - Prob. 43PPCh. 14.6 - Prob. 44PPCh. 14.6 - State whether each of the following solutions is...Ch. 14.6 - State whether each of the following solutions is...Ch. 14.6 - A solution with a pH of 3 is 10 times more acidic...Ch. 14.6 - A solution with a pH of 10 is 100 times more basic...Ch. 14.6 - Calculate the pH of each solution given the...Ch. 14.6 - Calculate the pOH of each solution given the...Ch. 14.6 - Prob. 51PPCh. 14.6 - Complete the following table:Ch. 14.6 - A patient with severe metabolic acidosis has a...Ch. 14.6 - A patient with respiratory alkalosis has a blood...Ch. 14.7 - Prob. 55PPCh. 14.7 - Prob. 56PPCh. 14.7 - Balance each of the following neutralization...Ch. 14.7 - Balance each of the following neutralization...Ch. 14.7 - Write a balanced equation for the neutralization...Ch. 14.7 - Prob. 60PPCh. 14.8 - If you need to determine the molarity of a formic...Ch. 14.8 - If you need to determine the molarity of an acetic...Ch. 14.8 - Prob. 63PPCh. 14.8 - What is the molarity of an acetic acid solution if...Ch. 14.8 - Prob. 65PPCh. 14.8 - A solution of 0.162MNaOH is used to titrate 25.0mL...Ch. 14.8 - A solution of 0.204MNaOH is used to titrate 50.0mL...Ch. 14.8 - A solution of 0.312 M KOH is used to titrate...Ch. 14.9 - Which of the following make a buffer system when...Ch. 14.9 - Prob. 70PPCh. 14.9 - Consider the buffer system of hydrofluoric acid,...Ch. 14.9 - Consider the buffer system of nitrous acid, HNO2 ,...Ch. 14.9 - Nitrous acid has a Ka of 4.5104 . What is the pH...Ch. 14.9 - Prob. 74PPCh. 14.9 - Using Table 14.4 for Ka values, compare the pH of...Ch. 14.9 - Using Table 14.4 for Ka values, compare the pH of...Ch. 14.9 - Someone with kidney failure excretes urine with...Ch. 14.9 - Someone with severe diabetes obtains energy by the...Ch. 14.9 - Prob. 79PPCh. 14.9 - Prob. 80PPCh. 14.9 - Prob. 81PPCh. 14.9 - After Larry had taken Nexium for 4 weeks, the pH...Ch. 14.9 - Prob. 83PPCh. 14.9 - Prob. 84PPCh. 14.9 - Prob. 85PPCh. 14.9 - Prob. 86PPCh. 14 - The chapter sections to review are shown in...Ch. 14 - Prob. 88UTCCh. 14 - Prob. 89UTCCh. 14 - Prob. 90UTCCh. 14 - Prob. 91UTCCh. 14 - Prob. 92UTCCh. 14 - Prob. 93UTCCh. 14 - Prob. 94UTCCh. 14 - Prob. 95UTCCh. 14 - Prob. 96UTCCh. 14 - The chapter sections to review are shown in...Ch. 14 - Prob. 98APPCh. 14 - Prob. 99APPCh. 14 - Prob. 100APPCh. 14 - Prob. 101APPCh. 14 - The chapter sections to review are shown in...Ch. 14 - Prob. 103APPCh. 14 - Prob. 104APPCh. 14 - Prob. 105APPCh. 14 - Prob. 106APPCh. 14 - Prob. 107APPCh. 14 - Prob. 108APPCh. 14 - Prob. 109APPCh. 14 - Prob. 110APPCh. 14 - Prob. 111APPCh. 14 - Prob. 112APPCh. 14 - Prob. 113APPCh. 14 - Prob. 114APPCh. 14 - Prob. 115CPCh. 14 - Prob. 116CPCh. 14 - Prob. 117CPCh. 14 - Prob. 118CPCh. 14 - Prob. 119CPCh. 14 - Prob. 120CPCh. 14 - Prob. 121CPCh. 14 - The following problems are related to the topics...Ch. 14 - Prob. 123CPCh. 14 - Prob. 124CPCh. 14 - Prob. 125CPCh. 14 - Prob. 126CPCh. 14 - Prob. 127CPCh. 14 - Prob. 128CPCh. 14 - Prob. 129CPCh. 14 - Prob. 130CPCh. 14 - Prob. 21CICh. 14 - Prob. 22CICh. 14 - Prob. 23CiCh. 14 - Prob. 24CiCh. 14 - Prob. 25CICh. 14 - Prob. 26CICh. 14 - Prob. 27CICh. 14 - Prob. 28CiCh. 14 - Prob. 29CICh. 14 - Prob. 30CICh. 14 - Prob. 31CICh. 14 - In the kidneys, the ammonia buffer system buffers...
Knowledge Booster
Similar questions
- The pOH of an aqueous solution of 0.392 M hydrocyanic acid, (K₁ (HCN) = 4.0 × 10−¹⁰) isarrow_forwardHow can we calculate the value of k ?arrow_forwardGiven these reactions and their AG° values, COCI2(g) + 4NH3(g) → CO(NH₂)2(s) + 2NH4CI(s), AGº = -332.0 kJ COCI2(g) + H₂O(l) → CO₂(g) + 2HCI(g), AG° = -141.8 kJ NH3(g) + HCI(g) → NH4CI(s), AG° = -91.96 kJ Calculate the value of AG° for the reaction, CO(NH2)2(s) + H₂O(l) → CO₂(g) + 2NH3(g) AG° = kJarrow_forward
- a) What is the equilibrium constant for HF(aq) ⇌ H+ (aq) + F– (aq)?, b) is it Homogenous or Heterogenous?arrow_forwardConsider the reaction at 25∘C 2NO3−(aq) + 8H+(aq) + 3Cu(s) → 3Cu2+(aq) + 2NO(g) + 4H2O(l) (d) at what pH is the reaction at equilibrium with all other ionic species at 0.100M and gases at 1.00 atm?arrow_forwardThe pOH of an aqueous solution of 0.428 M acetylsalicylic acid (aspirin), HC9H7O4, isarrow_forward
- When 25.0 mL of 0.25 mol/L LiOH and 25.0 mL of 0.25 mol/L HCl are mixed together, the temperature warms 15.8oC. What is the molar enthalpy of neutralization for LiOH?arrow_forwardConsider an aqueous solution of HF. The molar heat offormation for aqueous HF is 2320.1 kJ/mol.(a) What is the pH of a 0.100 M solution of HF at100°C?(b) Compare with the pH of a 0.100 M solution of HFat 25°C.arrow_forwardFill in the left side of this equilibrium constant equation for the reaction of hypochlorous acid (HC1O) with water. 1 = K, 음arrow_forward
- The ?a of HCNHCN is 6.2×10−10.6.2×10−10. What is the ?b value for CN− at 25 °C?arrow_forwardConsider the following acid-base pairs: H,CO/ HCO K, = 4.2 x 107 H2PO4/HPO K, 6.2 x 10 NH/ NH3 K, = 5.6 x 10 10 Which of the acids in the above acid-base pairs is the strongest?arrow_forwardCalculate the pH and the pOH of an aqueous solution that is 0.030 M in HCl(aq) and 0.060 M in HBr(aq) at 25 °C. pH = pOH:arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
Principles of Modern Chemistry
Chemistry
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:Cengage Learning