You have been given a sample of river water and have been asked to determine the concentration of acid in the river. You decide to do a titration with potassium hydroxide. a) Using the following data that you collect from your experiment, determine the concentration of acid in the river water. b) What is the pH of the river water? c) Give one reason as to why this pH level is a concern.

You have been given a sample of river water and have been asked to determine the concentration of acid in the river. You decide to do a titration with potassium hydroxide. a) Using the following data that you collect from your experiment, determine the concentration of acid in the river water. b) What is the pH of the river water? c) Give one reason as to why this pH level is a concern.

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...

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

You have been given a sample of river water and have been asked to determine the
concentration of acid in the river. You decide to do a titration with potassium
hydroxide.
a) Using the following data that you collect from your experiment, determine the
concentration of acid in the river water.
b) What is the pH of the river water?
c) Give one reason as to why this pH level is a concern.
Mass of potassium hydroxide: 0.865 g
Volume of potassium hydroxide solution: 100. mL
Trial 1
Trial 2
Trial 3
Initial burette
reading (mL)
Final burette reading
(mL)
Volume of water
from river (mL)
0.75
10.40
20.22
10.40
20.22
29.77
15.0
15.0
15.0

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