Featured in PASCO’s Chemistry through Inquiry Teacher Guide

Chemistry through Inquiry Teacher Guide

(PS-2871C)

Features over 25 inquiry based labs covering the fundamental concepts of lab skills, structure & properties of matter, chemical reactions and more.

An Acid Base Titration

Lab Summary

Use a drop counter and pH sensor to to determine the concentration of a
hydrochloric acid solution and the concentration of an acetic acid solution by titration.

 

Theory

Use a titration to determine the concentration of a hydrochloric acid solution and the concentration of an acetic acid solution. Through this investigation, students:

  • Differentiate between concentration and strength of acids and bases.
  • Perform neutralization reactions.
  • Describe and explain the shape of a titration curve.

Method

Students conduct the following procedures:

  • Perform a strong acid–strong base titration.
  • Perform a weak acid–strong base titration.
  • Calculate the concentration of an unknown hydrochloric acid solution and an unknown acetic acid solution using collected data and stoichiometric calculations.

Sensors / Equipment Used:

PASPORT High Accuracy Drop Counter

(PS-2117)

Is a professional drop counter that allows students to capture detailed titration data. For use with PASPORT Interfaces.

PASPORT Chemistry Sensor

(PS-2170)

Allows students to measure Temperature, pH/ISE/ORP, Absolute Pressure & Voltage in one sensor. For use with PASPORT Interfaces.

Materials Used:

Acetic acid solution - 10 mL
Magnetic stirrer 
Beaker, 250-mL - 2
Beaker, 50-mL - 2
Graduated cylinder, 100-mL 
Volumetric pipet or graduated cylinder, 10-mL
Buret, 50-mL 
Ring stand 
Right-angle clamp 
Buret clamp 
Funnel 
Transfer pipet 
Waste container 
Wash bottle filled with distilled (deionized) water
Buffer solution, pH 4 - 25 mL
Buffer solution, pH 10 - 25 mL
Distilled (deionized) water - 200 mL
Hydrochloric acid solution (~0.1 M) - 10 mL
Acetic acid solution (~0.1 M) - 10 mL
Standardized sodium hydroxide solution (~0.1 M) - 120 mL

Your Bundle Options:

Option 1:

Chemistry Starter Sensor Bundle

(PS-2921)

A sensor bundle specifically designed to get you started using probeware in your chemistry lab. Also: perform 22 Lab Activities from Chemistry through Inquiry teacher guide.

Option 2:

Chemistry Standard Sensor Bundle

(PS-2927C)

Contains the sensors and probes needed to perform all 17 experiments in the Advanced Chemistry Teacher Guide and all 25 labs in the Chemistry through Inquiry Guide.

Interface Required

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