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The Effect of Acid Deposition on Aqueous Systems

Figure from experiment 16 from Investigating Chemistry through Inquiry

Introduction

Acid deposition is a topic of much concern in today’s world. It can kill fish and other water life by lowering the pH of lakes and rivers. The pH scale is a measure of acidity. A pH value of 7 is neutral, values lower than 7 are increasingly acidic, and values higher than 7 are increasingly basic. Acid deposition is more harmful in some areas than others because some water resists changes in pH better than others. This ability to resist pH change is called buffering capacity.

Objectives

In Part I of the Preliminary Activity, you will use a pH Sensor to monitor pH as dilute sulfuric acid is added drop wise to a water sample.

General water hardness is related to the dissolved minerals in the water. In Part II of the Preliminary Activity, you will use a Conductivity Probe to determine the conductivity of water from the same source.

Sensors and Equipment

This investigation features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Investigating Chemistry through Inquiry »

Investigation 16 from Investigating Chemistry through Inquiry Lab Book

<em>Investigating Chemistry through Inquiry</em> book cover

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