pH Scale, pH of Salts and pH of weak acids_bases - March 6th_7th (Workshop 7)

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pH Scale, pH of Salts and pH of weak acids/bases - March 6th/7th (Workshop 7) Due: 12:00am on Friday, May 12, 2023 To understand how points are awarded, read the Grading Policy for this assignment. Chapter 17 Algorithmic Question 25 Part A Identify the substance that is NOT acidic. ANSWER: Correct Chapter 17 Algorithmic Question 28 Part A Calculate the pH of a solution that contains 2.4 × 10 -3 M H 3 O + at 25°C. ANSWER: Correct Chapter 17 Algorithmic Question 29 beer wine apple egg white peach 2.62 2.40 10.38 11.38 3.62
Part A Calculate the pOH of a solution that contains 2.4 × 10 -3 M H 3 O + at 25°C. ANSWER: Correct Chapter 17 Algorithmic Question 30 Part A Calculate the pOH in an aqueous solution with a pH of 9.85 at 25°C. ANSWER: Correct Chapter 17 Algorithmic Question 34 Part A A solution with a hydroxide ion concentration of 4.15 × 10 -3 M is ________ and has a hydrogen ion concentration of ________. ANSWER: 11.38 2.40 2.62 10.38 3.62 4.15 3.15 5.15 2.15 1.85
Correct Chapter 17 Algorithmic Question 35 Part A Calculate the pH for an aqueous acetic acid solution that contains 2.15 × 10 -3 M hydronium ion. ANSWER: Correct Chapter 17 Multiple Choice Question 14 Part A Which of the following is TRUE? ANSWER: acidic, 2.41 × 10 -11 M acidic, 2.41 × 10 -12 M basic, 2.41 × 10 -12 M acidic, 4.15 × 10 -3 M basic, 2.41 × 10 -11 M 4.65 × 10 -12 2.15 × 10 -3 2.668 11.33 12.22 A basic solution does not contain H 3 O + An acidic solution has [H 3 O + ] > [OH - ] An neutral solution does not contain any H 3 O + or OH - A neutral solution contains [H 2 O] = [H 3 O + ] None of the above are true.
Correct Chapter 17 Multiple Choice Question 16 Part A What is the pH of pure water at 40.0°C if the K w at this temperature is 2.92 × 10 -14 ? ANSWER: Correct Chapter 17 Multiple Choice Question 17 Part A What is the K w of pure water at 50.0°C, if the pH is 6.630? ANSWER: Correct Chapter 17 Multiple Choice Question 20 Part A Determine the pOH of a 0.00598 M HClO 4 solution. ANSWER: 8.446 7.000 6.767 7.233 0.465 1.00 × 10 -14 5.50 × 10 -14 2.34 × 10 -7 2.13 × 10 -14 There is not enough information to calculate the K w .
Correct Chapter 17 Multiple Choice Question 23 Part A Calculate the hydronium ion concentration in an aqueous solution with a pH of 4.33 at 25°C. ANSWER: Correct Chapter 17 Multiple Choice Question 67 Part A What is the autoionization of water? ANSWER: Correct Exercise 17.16 7.566 6.434 11.777 3.558 2.223 3.8 × 10 -5 M 4.7 × 10 -5 M 9.7 × 10 -10 M 2.1 × 10 -10 M 6.3 × 10 -6 M Autoionization of water is a process where water acts as an acid and a base when it reacts with itself. a process where water acts as a base when it reacts with itself. a process where water acts as an acid when it reacts with itself. a process where water acts as neither an acid nor a base when it reacts with itself.
Part A Define . What range is considered acidic? Basic? Neutral? Match the items in the left column to the appropriate blanks in the sentences on the right. ANSWER: Exercise 17.49 - Enhanced - with Feedback MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your eText. Calculate in each aqueous solution at 25 . Part A Express the molarity to two significant figures. ANSWER: Part B Express the molarity to two significant figures. ANSWER: Reset Help 7 14 0 acidic basic neutral is defined as . A solution that is has . A solution that is has , and a solution that is has . = =
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