# Green Solution Lab

### By: Shawn Kurban

## Aunt Elda

## Pre-Lab knowledge requsits

-What a colorimeter is and how we set it up, hwo we use it, and safety protocols

-How a colorimeter works which is it shoots light through the solution and test the concentration and absorbance and gives us the number which we add to our graph

## Colorimeter

## How do you make a solution?

First get the base measurement of plain water

Then you figure out the percentage of Green and water you will needFill a cuvette with one of the green solutions

Measure both percentages into the same cuvette

Cap the cuvette

Put cuvette in colorimeter

Record the number given by the colorimeter

Add number to graph

When a new number is added the graph automatically updates for you

For example if you want a 20% solution and you have a 10 milliliter cuvette, you would put 8 milliliters of water in the cuvette and you would add 2 milliliters to the cuvette, then you would put it in the colorimeter find the concentration and absorbance and record them and move on.