Crime Scene 4 - Study Time

At this crime scene you will investigate the the scene and a backpack of items the murderer left behind. Using the clues on the items left at the crime scene, determine what amounts of the various substances were found.

1. In the backpack are notes from chemistry class. The notes are on finding hydrate formulas. What is the formula of the hydrate described in the notes?

2. The pencil bag contains a clue.

3. Analyze the liquid in the water bottle at the crime scene which has a small amount of liquid in it. Determine the empirical formula.

4. The granola bar wrapper has traces of a molecule. What is the molecular formula of this substance if the molar mass is 172.2 g?