The purpose of the lab was to find out which of the three liquids will have the sugar dissolve the fastest. It was predicted that the sugar will dissolve the fastest in water. After conducting the experiment the data supported my hypothesis and was proven correctly. The data shows that the water dissolved the fastest. It took an average of 34 seconds for the water to dissolve and, both the vegetable oil and rubbing alcohol passed two minutes meaning some sugar didn’t dissolve. So overall the water did dissolve the fastest. The lab went as expected because during the experiment I made sure to read the instructions step by step. I did so by taking exact measurements,weighing every thing correctly, and using the correct materials.
Answer the lab questions for this week and summarize the lab experience using this form.
Discuss what you did in this lab and what you will cover in the lab
Answer the lab questions for this week and summarize the lab experience using this form.
In this lab experiment our main focus was to get skillful in using tools such as the metric ruler, balances, thermometer, and graduated cylinder to capture measurements of length, mass, temperature and volume. Additionally, this lab helped us to become more familiar with the uncertainty of measurements, as well as becoming efficient with rounding our measurements to the correct numbers of significant figures. Our results are measured consistently with rounding to the closest answer we could possibly acquire as the data can tell you.
Answer the lab questions for this week and summarize the lab experience using this form.
1) The materials: cup, gummy bear, triple beam balance, water, metric ruler, and pencil were utilized for the experiment.
Answer the lab questions for this week and summarize the lab experience using this form.
Complete the experiment and save the PDF lab report. Do not answer the questions in the PDF lab report. Use the data in the PDF lab report
Answer the lab questions for this week and summarize the lab experience using this form.
Hypothesis: Altoid and Smarties will dissolve the fastest and Sweet tarts will dissolve the slowest.
Preparation is a key to success in this lab. For this reason, you are required to thoroughly read through the experiment information presented in the lab manual, and complete a pre-lab for each experiment you do. The prelab must be completed prior to the day of the experiment. Each Friday I will ask to see your completed prelab before I allow you to enter the lab. If you have not finished the pre-lab, I will not allow you to enter the lab and you will receive a zero.
Experiment 2 “Density” was about how to measure the mass and volume and determine the density of water, alcohol, and a solid. For this lab, we begin by calculating the mass of empty graduated cylinder and the mass of 25 mL of tap water. After taking the mass of water and cylinder, we record it on “Density of Water: Data Table”. Since we did not have enough time of complete the whole lab, so we skipped the procedure to measure the density of alcohol. We jumped to the next procedure, which was density of a solid. For that we used a copper and it density 8.95. For this lab, my partner and I did not make any mistakes or errors. But, for better improvement I think we should have more time to complete the whole lab. I felt like we was rushing through
Describe what you did in the experiment, and include methods and materials used. Do not
Then we inverted the tubes so an air bubble would form in the little tube that is now upside-down. Now that we know what to do, we marked the little tube 2/3 full. One tube was filled to that line with glucose solution, another with fructose solution, sucrose solution and the last one with water. Next, the little tubes were topped off with a yeast solution. Then we slide a big tube over the little one and completed the inversion, this is done for every little test tube. After they are all inverted our group measured the bubble present at the top of the little tube. Then we put all of the inverted test tubes into a hot water bath for 20 minutes. After 20 minutes we took the tubes out and measure the air bubbles in the tubes. Next, we recorded the data calculated the net change from the beginning of the experiment to after the hot
For our hypothesis we thought that the seltzer would dissolve the alka seltzer the fastest, because the seltzer was already carbonated. After doing the experiment we found out that the seltzer was the 2nd fastest at dissolving the tablet, and the water dissolved the alka seltzer 6 seconds faster than the seltzer. This being said our hypothesis turned out to be wrong because the water (fastest to dissolve the alka seltzer) has fewer chemicals, so it dissolved the tablet faster. We thought the less chemicals the slower the alka seltzer would dissolve. Although after conducting the experiment we found through data that the more chemicals in the liquid, the slower the tablet would dissolve in them.