Featured in PASCO’s Biology through Inquiry Teacher Guide

Biology through Inquiry Teacher Guide

(PS-2870C)

Features 25 inquiry based labs covering the fundamental concepts of cell biology, ecology and physiology.

Acid Rain

Lab Summary

Use a pH sensor to determine the effect of several gases that cause acid rain on the pH of water. Discuss the effect of changes in the pH of water on
the environment.

 

Theory

In this activity, students investigate the relationship between certain types of man-made gas emissions and the formation of acid rain. During this investigation, students:

  • Determine the effect of different gases on the pH of water.
  • Discuss the effect of changes in the pH of water on the environment.

 

Method

Students use a pH sensor to analyze the effect of dissolved CO2, SO2, and NO2 on the pH of distilled water. Students gain experience conducting the following procedures:

  • Generating CO2, SO2, and NO2 , gases that cause acid rain, from chemical reactions.
  • Measuring the effect of CO2, SO2, and NO2 on the pH of water using a pH sensor.

Sensors / Equipment Used:

PASPORT pH Sensor

(PS-2102)

Has a wide measurement range of 0 to 14 pH. Has a resolution of 0.01 pH. For use with PASPORT Interfaces.

OHAUS Scout SKX Balance 200g

(SE-8823A)

Combines range, resolution and low cost, making it ideal for the student science lab. 200 g version.

Materials Used:

Erlenmeyer flask, 100-mL

1-hole rubber stopper for flask

Glass tubing to fit glass tubing, 20 cm

Beaker, 100-mL

Graduated cylinder, 25-mL

GRaduated pipet and pipet bulb

Sodium bicarbonate (NaHCO3), 5 g

Sodium bisulfate (NaHSO3), 5 g

Sodium nitrite (NaNO2), 5 g

1 M HCl, 15 mL

Water or deionized water, 60 mL

Wash bottle containing distilled or deionized water

Your Bundle Options:

Option 1:

Biology Starter Sensor Bundle

(PS-2920)

A sensor bundle specifically designed to get you started using probeware in your biology lab. Also: perform 10 of the 24 Lab Activities from Biology with Inquiry.

Option 2:

Biology Standard Sensor Bundle

(PS-2925A)

The Biology Standard Sensor Bundle includes a photosynthesis tank and the sensors required to perform 19 of the 24 Lab Activities in the Biology through Inquiry manual.

Interface Required

This experiment may require software and an interface for data collection.