Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Chapter 20.7, Problem 2Q
Interpretation Introduction
Interpretation: It should be defined for the concentration of various hydroxides at a certain
Concept Introduction: Alkalinity of a water supply is its capacity to accept hydronium ions.
This factor is important to known when assessing water quality, methods of water treatment, and the biology of natural water because the amount of biomass that can be produced depends on the alkalinity.’
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1.Calculate the ratio of conjugate base/ weak acid at pH 9.3. Show all details of your working out for each individual mathematical manipulation that you apply In each step of your working out use the chemical formulas of the compounds that constitute the weak acid and conjugate base. Provide the answer to 3 decimal places, make sure to round the result accordingly. State the final answer in a complete sentence.
2.Calculate the concentration of the weak acid and conjugate base for a total buffer concentration of 150 mM at pH 9.3. Show all details of your working out for each individual mathematical manipulation that you do apply . In each step of your working out use the chemical formulas of the compounds that constitute the weak acid and conjugate base. Provide the final answer to 3 decimal places using the unit molar ‘M’, make sure to round the result accordingly. State the final answer in a complete sentence.
HCO3- (aq) -------> CO32- (aq) + H+ pKa= 10.2
1. what is the ph of 0.50 M solution of citric acid?
2. what is the ph of the solution containing 0.50M citric acid and 0.50 M nitric acid. Report your answer to 2 decimal places.
Chapter 20 Solutions
Chemistry & Chemical Reactivity
Ch. 20.1 - Prob. 1RCCh. 20.1 - Prob. 2RCCh. 20.2 - Prob. 1RCCh. 20.2 - Prob. 2RCCh. 20.3 - Prob. 1RCCh. 20.3 - Prob. 2RCCh. 20.3 - Prob. 3RCCh. 20.4 - Prob. 1RCCh. 20.4 - Prob. 2RCCh. 20.4 - 3. Which of the following is a renewable energy...
Ch. 20.5 - Prob. 1RCCh. 20.5 - Prob. 2RCCh. 20.6 - Prob. 1QCh. 20.6 - Prob. 1RCCh. 20.7 - Prob. 1QCh. 20.7 - Prob. 2QCh. 20 - In the discussion on the composition of air,...Ch. 20 - Prob. 2PSCh. 20 - Prob. 3PSCh. 20 - Dinitrogen monoxide, N2O (commonly called nitrous...Ch. 20 - Prob. 5PSCh. 20 - Prob. 6PSCh. 20 - Prob. 9PSCh. 20 - Although there are a number of...Ch. 20 - Prob. 12PSCh. 20 - Prob. 13PSCh. 20 - Prob. 14PSCh. 20 - Prob. 15PSCh. 20 - Prob. 17PSCh. 20 - The enthalpy of combustion of isooctane (C8H18),...Ch. 20 - Energy consumption in the United States amounts to...Ch. 20 - Prob. 20PSCh. 20 - Prob. 23PSCh. 20 - Prob. 25PSCh. 20 - Prob. 28PSCh. 20 - In methane hydrate the methane molecule is trapped...Ch. 20 - Prob. 30PSCh. 20 - Prob. 31PSCh. 20 - Prob. 32PSCh. 20 - Prob. 33PSCh. 20 - Prob. 34PSCh. 20 - Prob. 35GQCh. 20 - Prob. 36GQCh. 20 - Prob. 37GQCh. 20 - Prob. 38GQCh. 20 - Prob. 40GQCh. 20 - Prob. 41ILCh. 20 - Prob. 42ILCh. 20 - Define the terms renewable and nonrenewable as...Ch. 20 - Prob. 44SCQCh. 20 - Prob. 45SCQCh. 20 - Prob. 46SCQCh. 20 - Prob. 47SCQCh. 20 - What is the likelihood that hydrogen (H2) will...Ch. 20 - Prob. 49SCQCh. 20 - Which sulfur compounds are atmospheric pollutants?...
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- Why are bases not commonly found in foods?arrow_forwardHow many times higher is the OH concentration is a solution with pOH = 1 than in solution with pOH = 14? %3D Please input your answer in scientific notation with one significant figure. Type your answer...arrow_forwardPlease answer very soon will give rating surelyarrow_forward
- What is the key structural feature of all Brønsted-Lowrybases? How does this feature function in an acid-base reaction?arrow_forwardMatch the following descriptors to their meaning as it applies to the acidity of a wine. Soft Answer 1 Flabby Answer 2 Ringing Answer 3 Crisp Answer 4 Firm or Hardarrow_forward[References] A chemist prepares dilute solutions of equal molar concentrations of CH3 NH,, CH3 NH, CI, NaNO,, and NaNO3 Rank these solutions from highest pH to low pH. (K, for CH3 NH2 is 4.4 x 10 K. for HNO, is 4.5 x 10 4.) Decreasing of pH Drag and drop your selection from the following list to complete the answer CH,NH2 NaNO; CH;NH3 CI NaNO,arrow_forward
- Using the table of the weak base below, you have chosen Pyridine as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.62 M in this salt. The desired pH of the buffer should be equal to 4.5. 3. Compute the concentration of the weak base in Molarity. (round off answer to 3 decimal places)arrow_forwardComplete the acid-base reaction below by writing the chemical formulas for the conjugate acid A and conjugate base B.arrow_forwardi will upvote please write classification using this ph scalearrow_forward
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