Sodium sulfate

Summary: Put on any necessary personal safety equipment, and one person from each team should collaborate with people from other teams to create the NaOH solution. The other team members should focus on setting up the buret by rising it with distilled water as well as building the titration apparatus and preparing the HCl solution. In order to prepare the NaOH solution, first take some solid NaOH and measure its mass. Then get a 250 mL volumetric flask and fill it about halfway with distilled…

In this experiment the molarity of ammonia is calculated using the process of titration. A chemical reaction occurs when two or more substances change to form different molecules. In each reaction there are ratios between each reactants. Certain amounts of each reactant are needed to fully complete the chemical reaction. Stoichiometry is the relationship between the quantities of the reactants. An acid is a substance that reacts and donates H+ ions. A base is a substance that accepts H+ ions. An…

In this study, we developed an anthracene-based fluorescence PET sensor (AMG) was developed for detecting high pH values and water content in organic solvents. A guanidine group as a proton receptor was covalently attached to an anthracene fluorophore to afford highly polar AMG, with reasonable solubility in highly basic solution. The fluorescence of AMG increased almost linearly with decreasing pH in the range 11.0–13.0. AMG also exhibited a fluorescence turn-on response to water in various…

water to make a light bulb shine? It sounds crazy, but it's true! This is because salt water is a good conductor of electricity. Salt molecules are made of sodium ions and chlorine ions. (An ion is an atom that has an electrical charge because it has either gained or lost an electron.) When you put salt in water, the water molecules pull the sodium and chlorine ions apart so they are floating freely. These ions are what carry electricity through water. What happens is the solution of the water…

The chloride test resulted in no evidence of a white precipitate, which pushed the team to conduct the sulfate test. During the sulfate test, the solution became cloudy, the unknown substance did not completely dissolve, and there was evidence of a white precipitate present. These two tests determined that there was a possibility that the sulfate ion (SO ) was present in the unknown compound. The cation test resulted in the appearance of a pale violet color within the flame…

In this experiment, qualitative analysis was used to identify two cations. Lead was identified in Part A, barium was identified in Part B and different flame colors were observed with various metal chloride solutions in Part C. Formula unit, total ionic, and net ionic equations were written for the confirmation reactions for both lead and barium. If this experiment was repeated, barium could be confirmed by the yellow precipitate BaCrO4 after confirming that the solution was clear and any…

skeletal muscle, the heart muscle depolarizes automatically when external stimuli are not present. This is called automaticity, which happens when the plasma membranes in heart muscle cells allow sodium to leak into the cell at a faster rate than potassium is moving across the membrane (book). The sodium moving inside the cell causes it to progressively…

The results showed that the bioluminescent bacteria was not affected by sodium chloride. They can actually survive in both fresh and saltwater. I discovered that the light intensity of the bacteria stayed between 0.02 and 0.07 lux. sodium chloride seemed to not affect the light intensity at all. In my background research I discovered that pollutants decrease light intensity of the bacteria. To learn more I use sodium chloride as my toxic pollutants and tested its effect on light intensity.…

to see if the combination and specific concentrations of sodium thiosulfate plus sodium hypochlorite are able to produce second degree burns on a person within 10 seconds. In order for a second degree burn to be possible we must reach a temperature of at least 56°C (133°F) in order to create burns up to third degree for the time the chemical stayed on the worker. Now the dumpster contained 6% mass sodium hypochlorite and 20.0% mass of sodium thiosulfate. Which when we calculate the molarity of…

prepare the absorbent, we will be using sodium alginate and calcium carbonate.1Sodium alginate is a common additive to foods, so there are several types. The type we will be using is called sodium;3,4,5,6-tetrahydroxy oxane-2-carboxylate. There are several sources to buy sodium alginate. However, we will buy it from Modernist Pantry, which the sodium alginate concentration has already been prepared. Before the preparation of calcium alginate itself, sodium alginate should be kept in a 39.2…