Lab Report

Introduction: My class did a chemistry experiment that consisted of using powdered lemonade and water in order to physically demonstrate how to create a solution, a mixture of two or more substances in which the molecules are completely dispersed.. Using Lemonade as the solute and water as the solvent, we made six different solutions. Each with different molarities, concentrations of lemonade powder. We ran tests on each of the solutions and recorded the data in a chart.

Materials:

-Lemonade Mix(Solute)

-H2O Bottle(6)(Solvent)

-Cups(to test the lemonade)

-Scale(to measure the lemonade mix)

-Spoon

-Measuring Cup(to measure solution)

Procedure:

Mixing the Solutions:

-First we had to pick a number out of a hat to determine the number of scoops to be added to the solution. We then added however many scoops to a pitcher and filled the rest up until it reached 400ml. We stirred thoroughly until the mix was completely dissolved. Once we had 6 bottles with different solutions they were labeled A-F.

Testing/Graphing:

-Each of the cups were placed on a different table and my class and i walked around and tested each one. The methods we used were Qualitative and Quantitative analysis. The first test was the color test. W were tasked with rating the color of each solution and putting them in order 1-6, 1 being the lowest and six being the highest. The second test was the taste test. We were each given a cup in which we were supposed to pour a small amount of solution into and test the taste of each one and also rate them in order from 1-6.

Calculation:

-We were given the amount of grams of mix in each bottle and with that information I was able to find the grams of sucrose and the grams of citric acid in each solution. From there I found the molar mass for both the sucrose and the citric acid. I calculated the number of moles of mix in each bottle by dividing the grams by moles. With the moles of solute, I divided by the number of Liters to find the molarity of each solution.

Observation/Data

-All of our calculations were recorded on a chart in our lab packet. The data collected from our tests was then transfered to a larger graph drawn on the white board. Each student recorded their results into their own column and we compared our results. We found that though some of our answers varied , they were all generally similar.

Conclusion/Summary

Through the entire lab, starting withh the mixing and ending with the final test results, I found this lab to be a perfect example of how solutions can be sorted through qualitative and quantitative observation.