1. I cut 2 strips of coffee filter paper to 3 cm by 9 cm.…
9) Put 4mL of stock solution and 1mL of water in a test tube to make the second solution.…
2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…
4-6: Why did lung function in the deflated (left) lung return to normal after you clicked Reset?…
Start the distillation by piling up hot sand around the distillation flask with a spatula…
100 ml water mixed with 10 ml vegetable oil filtered through cheesecloth and 60 ml of soil oil appeared to be filtered out by process and 70 ml was captured in beaker…
A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures of this lab exercise? (2 points)…
When holding test tube inverted over heptane flame, condensation formed against top walls of the test tube. When the burning splint was added the walls of the test tube became less foggy from the condensation formed from the heptane flame.…
Staphylococcus aureus is very heat resistant and reheating foods will not destroy it, although the bacteria may be destroyed (www.sunysccc.edu). About 30 per cent of healthy humans are carriers of S. aureus, they have the bacteria on their skin without any active infection or disease. Staphylococci hide their antigens to avoid an immune response many different ways to include killing infection-fighting cells (phagocytes), surviving within host infection-fighting cells, and developing a resistance to antibiotics (www. dermnetnz.org)…
1. Create a flow chart for the separation of your unknown mixture – BERFORE doing lab…
On 09 January at approximately 0900, Angel Rodriguez reported that while in Ms. Kimberly Nelson Biology class he and another student, Alicia Gieseck became curious about two specimens that were in glass containers in the back of the classroom. Mr. Rodriguez stated that he picked up the smaller of the two jars by the lid to closer examine the specimen. He observed that the top of the jar appeared to be glue shut. He then reported that he reached over and attempted to pick-up the larger jar, only to realize the lid unsecured and Formaldehyde used to preserve the specimen spilled onto the counter and to the floor.…
To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties)…
b. Place small amounts of the substance to be tested in each of the four micro test tubes.…
The primary function of the heart is to transport blood throughout the body, which delivers oxygen, nutrients and chemicals to the cells of the body to ensure their survival and proper function and to remove the cellular wastes. For the body to achieve this, it must maintain a certain blood pressure within the body to overcome gravity and orthostatic changes. If the body did not keep a certain pressure, distal cells and organs would not be able to receive a constant blood supply and cause a homeostatic imbalance. This experiment will show the possible changes in blood pressure due to gravity and orthostatic changes, but first, what is blood pressure and why is it important?…
.2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…