Unit Plan
Carnegie Mellon University

Chem Collective: Arsenic in Drinking Water

For Students 9th - 10th
Set in the context of ground water contamination in Bangladesh, this stoichiometry and analytical chemistry activity examines the issues around identifying wells contaminated with arsenic.
Activity
Chemistry Collective

Chem Collective: Determining the Concentration of an Unknown Solution

For Students 9th - 10th
Using the Virtual Laboratory design, students perform an experiment to determine the concentration of the unknown HCl solution to four significant figures.
Activity
Chemistry Collective

Chem Collective: Determining Reagent Concentrations

For Students 9th - 10th
Using the Virtual Laboratory, design an experiment to quickly determine which of the two reagents, HCl or NaOH, is 10 times more concentrated than the other.
Activity
Chemistry Collective

Chem Collective: Determine the Amount of Vitamin C in a Peach

For Students 9th - 10th
Perform a titration experiment to determine the concentration of absorbic acid in one medium peach.
Activity
Chemistry Collective

Chem Collective: Determine the Concentration of Acetic Acid in Vinegar

For Students 9th - 10th
A virtual lab where students determine the concentration of acetic acid in vinegar using a 0.110 M NaOH standard solution and an acid-base indicator, phenolphthalein.
Activity
Chemistry Collective

Chem Collective: Unknown Silver Chloride

For Teachers 9th - 10th
Determine the concentration of silver ion in a Silver Nitrate solution using gravimetric analysis.