Stoichiometry 04/09/12 Chemistry I B Ms. Norton Introduction/Pre-laboratory Assignment: 1. Write out and balance each of the following equations. A. CuSO4 + Fe Cu + FeSO4 B. 3CuSO4 + 2Fe 3Cu + Fe(SO4)3 2. If Iron (III) Sulfate were formed‚ what mass of Copper would be expected and what is the limiting reagent? C. 2.26 g Cu D. Fe 3. If Iron (II) Sulfate were formed‚ what mass of Copper would be expected and what is the limiting reagent?
Premium
Sample Questions 1. In the chemical formula for ammonia‚ NH3‚ what does the subscript 3 represent? (a) the number of ammonia molecules that will bond together (b) the number of nitrogen atoms in each molecule of ammonia (c) the number of nitrogen and hydrogen atoms in each molecule of ammonia (d) The number of hydrogen atoms in each molecule of ammonia 2. The diagram above shows a block from the periodic table. The number six represents the following consumers eats only producers? (a) atomic
Premium Chemistry Oxygen Hydrogen
Infrared Spectroscopy Aim: To obtain IR spectra of know solid sample and liquid sample using the following sample preparing technique: Prepare solid IR sample using Solid Pellet Samplin Technique Use IR is used to identify functional groups. 5 major functional groups easily identified by IR spectroscopy: 1. C=O 2. C–O 3. OH 4. Phenols 5. C–H Instrument details Type of spectrophotometer: Nicolet 380 FT-IR spectroscopy‚ Nicolet Avatar 360 & Thermo Scientific iS10 FT-IR Spectrometer
Premium Infrared spectroscopy Infrared Spectroscopy
THE PRINCE’S TRUST BUSINESS PLAN PACK THE BUSINESS PLAN WORKBOOKFA SINGLES.indd 1 24/07/2012 19:52 WELCOME THE BUSINESS PLAN You’ve got a business idea. You’ve decided to start a business. You want to get going. But there’s a lot more to a good business than a good idea. You need to think things through to maximise your chances of success. Are you the right person to run the business? Will customers like your product? A business plan will help you turn an idea into a business
Premium Costs Management Strategic management
cholesterol. 2. A snack pack of potato chips holds 28 grams of chips. Based on your data‚ how much fat is present in a snack pack? In such a bag of chips‚ there are about 15 grams of carbohydrate and about 1 gram of protein. Given that carbohydrates and protein provide about 4 Calories of energy per gram and fats provide about 9 Calories per gram‚ what is the total energy equivalent (in Calories) of a bag of chips? What percent of Calories are from fat? Fat in Snack Pack: 3.35 g are fats Energy
Free Nutrition Energy Metabolism
Laboratory 2: Examining Dyes and Dying Introduction Dyes‚ which used on material such as cotton‚ silk‚ wool‚ and nylon appears to have color due to the partial light absorption in the visible region of the electromagnetic spectrum. Chromophores‚ derived from Greek‚ Chroma meaning color and phoros meaning bearer makes light absorption feasible. Dyes contain both chromophore molecules and auxochrome molecules; chromophore molecules include unsaturated groups‚ for instance carbon-carbon double bonds
Premium Dye Color Light
11.1 Washing with cold distilled water Washing process is not only remove soluble protein‚ fat‚ and pro-oxidant‚ but may also remove antioxidant. Therefore the oxidative stability of muscle ultimately depends upon the antioxidant/prooxidant balance that remains after the muscle is washed. It suggests that washing may promote oxidation in mince since it effectively removes antioxidants from the fish. In addition‚ the neutral lipids are more easily removed than polar lipids‚ phospholipids and free
Premium Nutrition Fatty acid
1. Does the children’s game “Hot and Cold” make good use of shaping? Shaping is typically‚ used to form a behavior one does not yet possess. The game “Hot and Cold” do make good use of shaping if it is implemented consistently. Sometimes this game can be easy and effortless‚ however at other times it is difficult. This sort of reminds me of teaching the dog to climb a ladder. You have to know when to reinforce and when not too. If no progress is made it sort of push the previous progress made back
Premium Psychology Learning Developmental psychology
esophagus‚ and stomach. 2 These harsh qualities are alleviated by replacing the acidic hydrogens with less reactive groups of atoms: the acetyl group (COCH3). This results in acetylsalicylic acid or "aspirin". Acetylsalicylic acid is synthesized in labs and does not occur naturally. It is produced from adding acetic anhydride to salicylic acid in the presence of sulfuric acid (H2SO4)‚ an acid catalyst: (Diagram from 1) The impurities left over (unreacted salicylic acid‚ acetic acid and sulfuric acid)
Free Aspirin Carboxylic acid Acetic acid
Redox Titration Lab ABSTRACT: In this lab‚ 0.010 M purple-colored potassium permanganate solution was standardized by redox titration with iron (II) ammonium sulfate hexahydrate (FAS). The average mass of the three flasks of FAS was 0.483 grams. Once the concentration of the standard solution of KMnO4 (aq) was determined‚ it was used to determine the concentration of Fe2+ in iron pills. On average‚ there was 0.01813 L of solution used. With this information and the balanced net-ionic equation
Premium Titration