I’m going to infer that Styrofoam will make the better calorimeter. For our insulator, Styrofoam will work better because it again has a lower specific heat capacity. Note, heat given off by a reaction in the coffee cup is absorbed by the water in the coffee cup therefore the heat capacity of a coffee cup calorimeter is that of water the water (q-reaction=m-water x C-water x (t,f-t,i). In order to determine the best calorimeter we must use the Calorimeter Constant: C-calorimeter= q-calorimeter/∆T This helps us determine the heat energy required to raise the temperature of the calorimeter by 1.00 C. For this experiment
Carb-Cutter; Blocker of Carbs or a Phony? Rumor has it that there is a miracle weight loss product that slows down the digestion of carbohydrates. These diet pills contain carb-cutter which blocks amylase, the enzyme that breaks down starch into glucose. With this being done, Carb-Cutter neutralizes the amylase before it starts the breakdown. This allows your body to pass starch through without turning it into glucose.
There are several different ways to create baking soda, but the Athenium Baking Soda Company chose to make baking soda by reacting ammonium hydrogen carbonate with a highly concentrated aqueous solution of NaCl or brine. An equation to demonstrate this process is: NH4HCO3(S) + NaCl (aq) → NaHCO3 (aq) +NH4Cl(aq) This salt-water concentration not only contains a high concentration of sodium chloride, but also concentrations of calcium chloride, potassium chloride, and lithium chloride. Because of this fact residue of NH4HCO3 will possibly contain CaCl2, KCl, and LiCl. These contaminants of the brine will provide flaws to the baking soda, and thus production must be checked often by chemists who analyze the baking soda for lifespan, composition, purity, and quality. There are a couple different ways to determine the percent composition of baking soda.
This can only suggest there were some impurities in the synthesized cholesterol but other results prove it to be pure. The TLC plate proved the synthesized cholesterol to be pure because there were only the three spots and the commercial cholesterol and synthesized cholesterol were relatively close to each other. UV light and an iodine tank was used for detection. The melting points also proved the synthesized compound to be pure because the range was close to the commercial cholesterol. The dibromocholesterol yielded a positive
They have a relatively high level of hydrophilicity. Conversely, cationic surfactants such as cetyltrimethyl ammonium bromide (CTAB) release a positive charge in an aqueous solution. On the other hand, in alkali pH, amphoteric surfactants act as anionic while in acid pH, it act as cationic. Non-ionic surfactants such as partially hydrolyzed PVA (polyvinyl alcohol) have no charge (Li et al, 2008). Among four types of surfactants, partially hydrolyzed PVA is most frequent used because it gives the smallest microsheres (Jeffrey et al, 1991).
The maximum amount of fluoride that can be added in drinking water is 1.5 mg/l The benefit of fluoride in Dental Health, the fluoride strengthens tooth enamel making it more resistant to tooth decay. Bye reducing the amount of acid that the bacteria on your teeth produce. This forms a thin layer of sticky plaque, which if not removed forms into caries.Fluoride promotes re-mineralisation in keeping the tooth healthy. Tooth decay in children under the ages of 7yrs old is high risk. Factors consist of inadequate brushing, eating and drinking sugary foods.
a) Bubbles stop in the lemon juice first but are still forming in the vinegar. I notice the zinc interior is dissolving and the copper coating is left. b) There is more acid in the lemon juice than in the vinegar. c) The reaction of zinc with an acid. d) The reactions are complete when the bubbles stop forming.
h) A way to make hard water softer is to put an sodium nitrate and create a precipitate to mellow out the reaction. Another way of making it softer is by removing the calcium ions one way of doing that is by boiling the solution to take out some of the ions. Conclusion: Overall, we determined that sodium carbonate, Na2CO3, is the anion that can be used to precipitate the most metal cations. Also, we learned that the anion sodium chloride, NaCl, could be used to remove silver ions from solutions. The stuff that I found interesting was that how many colours you can get when you mix the cations and anions
The "salts" part of the name comes from their appearance being similar to the crystals of common salt. Chemically speaking, all bath salts are true salts but the more organic salts commonly used in bath water (especially surfactants like soap) are not called "bath salts" because those appear more like wax or oil instead. Such salts include magnesium sulfate (Epsom salts), sodium chloride (table salt), sodium bicarbonate (baking soda), sodium hexametaphosphate (Calgon, amorphous/glassy sodium metaphosphate), sodium sesquicarbonate, borax, and sodium citrate. Fragrances and colors are often added to bath salts; in fact, one purpose of salts is as a vehicle or diluent to extend fragrances which are otherwise too potent for convenient use. Other common additives to bath salts are oils (agglomerating the salts to form amorphous granules, the product being called "bath beads" or "bath oil beads"), foaming agents, and effervescent agents.
Once extracted and powdered, gelatin dissolves in hot liquids and becomes more solid as it cools. It is used to make the outer shells of the capsules used in medications, and in foods like Jell-O and gummy candies. Gelatin is also used in some low-fat products because it simulates the creamy feel of a fatty ingredient without adding any calories. What Does Gelatin Have to Do With my Hair? Gelatin contains keratin, which is a very strong protein found in your hair, nails, teeth and skin.