Calculate the concentration of H3O* in a solution that contains 5.5 x 10° M OH" at 25°C. Identify the solution as acidic, basic, or neutral.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
**Question**: Calculate the concentration of H₃O⁺ in a solution that contains 5.5 × 10⁻⁵ M OH⁻ at 25°C. Identify the solution as acidic, basic, or neutral.

**Answer Options**:

- 9.2 × 10⁻¹ M, basic
- 9.2 × 10⁻¹ M, acidic
- 1.8 × 10⁻¹⁰ M, basic
- 1.8 × 10⁻¹⁰ M, acidic
- 5.5 × 10⁻¹⁰ M, neutral

**Explanation**: To solve this problem, use the relation between hydronium ions (H₃O⁺) and hydroxide ions (OH⁻) concentrations in water at 25°C, given by the ion product of water (Kw):

\[ \text{Kw} = [\text{H₃O⁺}][\text{OH⁻}] = 1.0 \times 10^{-14} \]

From this, you can calculate \([\text{H₃O⁺}]\) as:

\[ [\text{H₃O⁺}] = \frac{1.0 \times 10^{-14}}{[\text{OH⁻}]} = \frac{1.0 \times 10^{-14}}{5.5 \times 10^{-5}} \]

Calculate the concentration to find the correct option and determine if the solution is acidic, basic, or neutral based on the concentration of H₃O⁺.
Transcribed Image Text:**Question**: Calculate the concentration of H₃O⁺ in a solution that contains 5.5 × 10⁻⁵ M OH⁻ at 25°C. Identify the solution as acidic, basic, or neutral. **Answer Options**: - 9.2 × 10⁻¹ M, basic - 9.2 × 10⁻¹ M, acidic - 1.8 × 10⁻¹⁰ M, basic - 1.8 × 10⁻¹⁰ M, acidic - 5.5 × 10⁻¹⁰ M, neutral **Explanation**: To solve this problem, use the relation between hydronium ions (H₃O⁺) and hydroxide ions (OH⁻) concentrations in water at 25°C, given by the ion product of water (Kw): \[ \text{Kw} = [\text{H₃O⁺}][\text{OH⁻}] = 1.0 \times 10^{-14} \] From this, you can calculate \([\text{H₃O⁺}]\) as: \[ [\text{H₃O⁺}] = \frac{1.0 \times 10^{-14}}{[\text{OH⁻}]} = \frac{1.0 \times 10^{-14}}{5.5 \times 10^{-5}} \] Calculate the concentration to find the correct option and determine if the solution is acidic, basic, or neutral based on the concentration of H₃O⁺.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY