Site Navigation
Site Directions
Search AlgebraLAB
Career Profiles
Reading Comprehension Passages
Practice Exercises
Science Graphs
StudyAids: Recipes
Word Problems
Project History
Project Team

Chalk it Up
Purpose: The purpose of this activity is to determine the number of the formula units of CaCO3 (chalk) that are deposited onto a chalk board.
  1. Carefully record the mass of a piece of chalk.
  2. Write your name of the chalkboard.
  3. Reweigh the chalk.
Data: Create your own data table here.
Data Analysis:
Show a word formula and sample calculation:
    1. Calculation the mass of chalk deposited onto the board.
    2. Convert grams of chalk CaCO3, to formula units.
Compile your data with that of 9 other classmates. Input into List 1 (L1) of the graphing calculator. Go to stat. Arrow over to calc. Select one variable. Select enter. Find the following:

    1. The mean () with the standard deviation (Sx)
    2. The range with minimums and maximums
    3. The median
  • What is chalk made of?
  • How does it form?
  • Why is there so much limestone in Florida?
  • Why can you pick up a piece of white limestone off the ground and write your name with it on a sidewalk?
  • How many formula units of CaCO3 are in one mole of CaCO3?
  • How much does one mole of CaCO3 weigh?
  • How many times would you have to write your name to use up 0.50 grams of chalk?

E Saylor

Show Related AlgebraLab Documents

Return to STEM Sites AlgebraLAB
Project Manager
   Catharine H. Colwell
Application Programmers
   Jeremy R. Blawn
   Mark Acton
Copyright © 2003-2023
All rights reserved.