Solutions Stoichiometry

When calculating molarity, stoichiometry can also be used. There are steps to follow when using stoichiometry, one is systematic approach, and the other is the flow chart, which is shown below. This topic can be hard to grasp, so using these links can be helpful.

1. http://chemcollective.org/activities/tutorials/stoich/solution_stoi 
2. https://chemistry11mrstandring.wikispaces.com/Stoichiometry+Calculations+Involving+Molar+Concentration
3. https://www.youtube.com/watch?v=n5TaI_XR3y4

Dilutions and Lab

Today in class we completed an aqueous solution lab. We performed this lab to see how the concentrations of the solutions change in a serial dilution. We began the lab with 20 drops of food coloring in 10 mL of water. For the next solution we took 1.0 mL of the previous solution and added it to 9 mL of water. We continued this until the food coloring was no longer visible.

This link has practice problems for serial dilutions, and this website  and second website explains the topic more in depth. 

Molarity

Molarity is the molar concentration of a substance. Use the picture below to help you find the molarity.  This link gives you practice on how to find the molarity.

Solubility Curves

Solutions are made up of two parts the solute and the solvent. The solute is what is dissolved in the solvent. The solvent is part of the solution that is in the largest quantity. 

There is a limit on how much solute can be dissolved in the solvent. There are three stages of how much solute can be dissolved in a solvent: unsaturated, saturated, and supersaturated. The graph below is a solubility curve this shows what compound is unsaturated, saturated, and supersaturated.
This link shows you how to read a solubility curve and gives you some practice reading them.