Calculation: Initial Mass(g)-Final Mass (g)=Change in Mass (g) Trial 1 74.5-62.0=12.5(g) Trial 2 272.7-271.5=1.2(g) Percent Error: 272.7-271.5 x 100 272.7 =0.440% Percent Change: 74.5-62.0 x 100 74.5 (Trial 1) =16.778% 272.7-271.5 x 100 272.7 (Trial 2) =0.440% Conclusion: Compare Trial 1 and Trial 2. The Trial 1 change in mass are 12.5g, however Trial 2 changes in mass is 1.2g.The Trial 1 change in mass is more than Trial 2. And I think the Low of Conservation of Mass violated in the Trial 1 is can be exist. Because the Trial 1 actually the soda with vinegar have Chemical reactions occur and chemical
Therefore, the null hypothesis H0: µ ≥ 16 ounces is rejected, leading to the mean being less than sixteen ounces. Step 4: The following is discussion based on the conclusion of the test: If it is concluded that there are less than sixteen ounces in a bottle of soda, create a hypothesis on three possible causes. Followed by the suggestions of the strategies to avoid the deficit in the future.
As we shook the first cube for 3 minutes, the mass decreased from 2.35g to 1.42g. During test 2, we shook and received a 1.64g, after the starting total of 4.7g. For the final mass we got 1.99g, a total of 5.06g grams turned into sugar dust. Our graph was almost a straight line. On trial 1, i believe we didn 't shake it as hard as we did of
Background: In Ischia Island the water around the island has been acidified for millions of years because of Mt. Vesuvius. This dormant volcano is melting chalk in the sea floor, which releases carbon dioxide into the water acidifying it. This acidification is devastating the life around the island and is still being acidified by the continuous release of CO2. We can use this as an example of what our world might look like if we continue to release carbon dioxide emissions through things such as burning fossil fuels and reducing the carbon banks such by things like deforestation.
Sandwich Blitz 4 Step Control Process Joey Finley Kaplan University Introduction to Management MT140 Maria Minor June 28, 2011 Sandwich Blitz 4 Step Control Process Lei has come across an issue with a time sheep discrepancy where a manager has allowed an associate to report hours on the time that had not been actually worked thereby receiving pay for work that had been done. Lei confirmed that this type of action is not allowed by checking through the handbook, just to verify her concerns. She has also noticed that some employees have not been working or living up to what herself and Dalman had expected of their employees.
The average concentration of my unknown Al3+ solution (#41) was 0.02372 0.00016 mol/ L. My %RSD was 0.67%, which I would say is very good. This means my precision relative to my average was very good. When calculating the mass of the precipitate, my Trial #1 and #2 were both 0.271X, with Trial #3 being 0.27XX.
Mika Nijhawan 9/29- 10/10 2 MENTOS AND SODA LAB REPORT State the Problem Does the type of soda affect the size of the explosion, after mentos are added? Develop a Hypothesis If seven mentos to a 2L bottle of Diet Pepsi, then it will create the biggest geyser out of Coke, Fanta, & Root Beer because Diet Pepsi has potassium benzoate, aspartame, and the carbonation which react to mentos. Design an Experiment Materials List: 1 clear test tube 35 original flavored Mentos candies (2 1/2 rolls) 1 3x5 index card 4 2L bottles of soda (all different flavors/types) 1 2L bottle of soda water 1 100 mL graduated cylinder 1 400 mL beaker 1 pair of tweezers (preferably large) 1 small container Procedure: Stack seven mentos in the test tube When given permission take the test tube, soda bottles, index cards, and the remaining 25 mentos, to the designated area Place one of the four soda bottles on a flat area Open the soda bottle and place the 3x5 index card over it With the index card over the soda bottle, flip the test tube over and place it on the index card, so the test tube is lined with
To calculate the experimental mass the substance of each bag and the bag its self was measured using a balance. After gathering the mass subtract the mass of the empty bag to the mass of the unknown substance, in order to just have the mass of the substance. Afterward the mass of the unknown substance was divided by the number of moles recorded on the bag of the substance. The measurements are displayed on the table
Setting The observation was conducted at the Panera Bread restaurant located in River Forest, Illinois at around 5:00 P.M. on Thursday on the 15th of September. When I arrived at the restaurant, I chose a seat close to the door so as to better observe people coming up to the counter to order. I looked around and did not see any children, the restaurant was mostly populated with college aged people and a few elderly folks. Approximately a half hour later, I observed a white, brunette female with a short ponytail, in her mid-thirties enter the restaurant with a girl of approximately five years of age with a similar brunette ponytail in tow.
Table 1 Results DDA Concentration Initial Mass(g) Time Interval Recovered Mass Cumulative Mass (g) Cumulative Recovery (%) Ln[(Rinf -R)/ Rinf] R=Rinf(1-e-kt) (M) (g) 10^(-5) 160 0 0
The mass blocks will be changed throughout the trials, because the mass is the independent variable, and the distance they are pushed
Adrian Molina December 1, 2015 Biology Lab The Affect of Cigarette Extract on Food Vacuole Introduction a. background Tetrahymena are Single celled cicilated protists, which are known to tolerate a diverse range of environments. Tetrahymena are often used in experiments because they are easy to culture and have similar life processes as multicellular organisms. Tetrahymena is covered with short hair-like projections or cilia, that sweep food particles into its oral groove.
Then the balloon is lifted up so that the baking soda runs into bottle to react with the vinegar inside. Immediately the balloon is inflated by the carbon dioxide formed. The baking soda is kept constant when the experiment is repeated for another different amount of vinegar. Results/Findings When sodium bicarbonate and vinegar mix,
The experiment for this report is 5, 6, and 7. In experiment 5 there are given a Sodium Hydroxide which is 4.126 g when it is weighted and a KHP also with the NaOH there’s two other experiment that are used to find the titration of molarity in the three chemical balances. In exp. 6 and 7 there using the NaOH to find titration in an acid and vinegar by going through three trails to see how much sodium hydroxide is pick in it until it turns light pink, however if it turns dark pink there’s an error in the trail.
When 6 grams were added the Sportime took the lead, but in the last round with 8 grams added the Referee birdie brand got ahead by 0.3. As mass was added to the birdie, it went over the net more often. Something that could have affected the
Most expensive sandwich in $ 214 Ritzy Restaurant presents the world’s most expensive sandwich in New York City. This Sandwich name is Cheese Toastie Dipped in Gold which setting the new world record for the Most Expensive Sandwich, according to the World Record Academy. This sandwich is so unique because the final touches include a tomato and lobster bisque served in a crystal glass and then chef’s plate the sandwich in 23 carat Gold. The Ritzy Restaurant has been decided USD 214 of the price of this sandwich.