Sodium

The mixture in 2 was titrated against sodium thiosulfate placed in a 50.00 mL burette. 4. Steps 1-4 was repeated untill a difference of 0.01 mL is noticed in values taken. 2.0 LITERATURE REVIEW Experiment 1: Titration is a common laboratory method of quantitative chemical analysis that is used…

implemented an experimental design by having the amount of sodium polyacrylate inside our superabsorbent pillow be our independent variable. We chose this variable as our treatments because the goal of our experiment was to test how the amount of…

After we gathered our materials we measured 23 g of sodium nitrate and 200 mL of water. After measuring the water we put the water in the small bag. Then we took the initial temperature of the water, which was 23 degree celsius. Then, we put the 23g of sodium nitrate into the big bag. After that we put the small bag(unsealed) into the big bag(sealed). Then, we mixed the two substances together. Once we…

hydrochloric acid and heat the flame until it glows. Pour about 10 milliliters of 10% sodium chloride solutions into a small beaker and for unknown use 2mL of unknown solution instead of sodium chloride. Dip the clean wire loop into sodium chloride solution and place the loop in the flame and record the observation. Third, potassium flame will be tested. First, clean the wire lop with concentrated HCI for sodium flame test. Pour two milliliters of 10% potassium chloride solution into a small…

are cold. Dr. Richard L. Mueller defines TRPM8 as "an ion channel, upon activation it allows the entry of Na+ (sodium) and Ca2+ (calcium) ions to the cell that leads to depolarization and the generations of an action potential." In other words the TRPM8 cells open for sodium and calcium. However, in an article by Matt Soniak, he states that the TRPM8 ion cells don't only open to Na+ (sodium) and Ca2+ (calcium), but certain natural chemicals can activate TRPM8 on their own such as menthol that…

relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers. In the lab that I did with my group we used stoichiometry to find out the decomposition of sodium biocarbonate. Sodium carbonate is just another name for baking soda, and that is what we used on our lab. Baking soda is also used in some food items, such as pancakes, waffles etc… When the baking soda is being heated the decompositon part occurrs and when…

To carry out the experiment we need to get caffeine into a solution. We used a solid-liquid extraction by adding 14 tea bags into a 1L beaker with 6g of sodium carbonate, 250 mL of tap water and bringing this to a boil for five minutes on a hot plate. Sodium carbonate is a weak bronsted base, that neutralizes tannic acids extracted from tea, that interfere with the later sublimation operation.(1) We turned the heat off after five minutes, added ice cubes to cool the mixture to room temperature…

environment the student had, was water and sodium chloride. In this instance water was the model cell (what was in the dialysis tubing) and Sodium chloride was the surround environment (plastic cup). The initial weight of the model cell was 13.2g, but after sitting in the sodium chloride solution over night the cell lost water and only weighted 11.6g. Since the solution of the model cell- in this case water- left the cell and entered the surrounding Sodium Chloride it meant the cell had a…

The goal of experiment four was to use sodium dichromate to oxidize borneol to camphor. The camphor was purified using sublimation, then reduced to isomeric alcohol isoborneol with sodium borohydride. 1H NMR was used to determine the ratio of borneol to isoborneol in the final product. The experiment was carried out by using sodium dichromate to oxidize a borneol solution. Once the reaction was complete the mixture was separated using extraction techniques, dried, and ether was removed via…

and 0.3 grams of sodium carbonate was added in. Sodium carbonate prevents caffeine from…