Sodium

3-(4-acetylphenyl)-6-bromo-2-(4-chlorophenyl)quinazolin-4(3H)-one (2) Compound 1 ( 0.01 mol) fused with p-aminoacetophenone ( 0.01 mol) at 160 oC in an oil bath for 2 h. Crystallized from ethanol to give redish brown crystals of 2, m.p. 210oC in 80% yield. Analysis for C22H14BrClN2O2, Calcd.: % C, 58.24; H, 3.11; N, 6.17, Found: % C, 58.31; H, 3.17; N, 6.20, IR spectrum (KBr, cm-1) showed characteristic absorption bands at 3380 (C-H aromatic), 1710 (C=O of acetyl), at 1690 (C=O of…

Everybody has heard of paper maché, but not everyone knows of the much more useful alternative, paper maché clay. It’s simple to use, and easy to fill a space. It is much better than normal paper maché clay, even if it has it’s flaws. The benefits far outweigh the flaws, making it an extremely useful tool in making masks. Masks can be made from all kinds of material, but using paper maché clay is the easiest way to have the most artistic freedom. Paper maché clay can be messy, but so can paper…

Instead, it changes as a result of other changes you make. The dependent variables in my experiment were: • The rate of reaction. • The volume of sodium thiosulphate. The volume of sodium thiosulphate will remain unaffected throughout the whole experiment, Where as I will be changing the concentrations of hydrochloric acid. The volume of sodium thiosulphate will be 50cm³. The different concentrations of hydrochloric acid are 0.10M, 0.25M, 0.50M, 0.60M, 0.90M and 1.0M. Now, I will…

In part one the Styrofoam cups and the substances that are in the cup which is distilled water and sodium hydroxide was the system while the stir rod and thermometer and the Vernier unit is the surroundings. In part two the Styrofoam calorimeter, HCl and NaOH are the system while the stir bar and the tool that is used to measure the temperature is the surroundings. In part 3 HCl, Styrofoam cup calorimeter and NaOH are the system while the temperature probe, stirring rod are the soundings 6.)…

reactions as whole. It also helped us determine how the amounts of sodium carbonate and calcium chloride affect the chemical reaction made: calcium carbonate. Introduction: This lab was to show the relationship between reactants and products. In this case, we used calcium chloride and sodium carbonate. This made a chemical reaction and eventually formed calcium carbonate. The goal of this lab was to determine how the amounts of sodium carbonate and calcium chloride change or affect the…

Here in this paper we are discussing about the Pros and cons of using nitrates as preservatives these days. “Sodium nitrate” and “Sodium nitrite” which are forms of salt. For thousand years salt has been using as preservative to store meat even the refrigerator was discovered. Even today, purified nitrate and nitrite are commercially used to store the food for longer time. Below I explained the Pros and cons of usage of theses preservatives now days. Pros:  These Preservatives helps to…

Sodium Azide There is perhaps not a lot known about this chemical and what it can do to/for people. One important aspect is to know what the chemical is made of, doing so will give someone a general look into its makeup. Secondly, “What is something we use this chemical for in everyday life”. Lastly, “How does this affect our cell breathing process?” From these topics, one can gather a general sense of what this substance does and whether or not it should be strayed away from. Of course it…

the reaction of sodium carbonate and calcium chloride dihydrate (the dihydrate must be included with the molar mass calculation)? Predictions: Predict the mass of sodium carbonate and calcium chloride dihydrate that will be required to produce 1.90 grams of calcium carbonate: Therefore, the predicted mass of sodium carbonate is 2.0 grams and the predicted mass of calcium chloride dihydrate is 2.8 grams. Materials: 2 Beakers (150 mL) Calcium chloride Sodium carbonate…

Most people who watch crime dramas (Law & Order, NCIS, or CSI) on TV know what the cops do when they’re at a crime scene. When cops are investigating a crime scene, they spray a special type of solution involving the chemical Luminol that glows blue in the dark. The topic of this experiment is to determine what other liquids can react with Luminol to make the solution glow blue in the dark. The independent variable would be the types of chemicals used (in cups) and the dependent variable would…

3-(4-acetylphenyl)-6-bromo-2-(4-chlorophenyl)quinazolin-4(3H)-one (2) Compound 1 ( 0.01 mol) fused with p-aminoacetophenone ( 0.01 mol) at 160 oC in an oil bath for 2 h. Crystallized from ethanol to give redish brown crystals of 2, m.p. 210oC in 80% yield. Analysis for C22H14BrClN2O2, Calcd.: % C, 58.24; H, 3.11; N, 6.17, Found: % C, 58.31; H, 3.17; N, 6.20, IR spectrum (KBr, cm-1) showed characteristic absorption bands at 3380 (C-H aromatic), 1710 (C=O of acetyl), at 1690 (C=O of…