TABLE OF CONTENTS 1. IA (Alkaline Metals) 1.1. H………………………………………………………………………..2 1.2. Li………………………………………………………………………..2 1.3. Na………………………………………………………………………2 1.4. K………………………………………………………………………..3 1.5. Rb………………………………………………………………………3 1.6. Cs………………………………………………………………………3 1.7. Fr……………………………………………………………………….4 1. IIA (Alkaline Earth Metals) 2.8. Be………………………………………………………………………4 2.9. Mg………………………………………………………………………4 2.10. Ca………………………………………………………………………4
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reactions with the Finkelstein reaction. The conditions for this are NaI in acetone. NaI is soluble in acetone but the products of the reaction; NaCl and NaBr are not. We will watch the reaction by looking for the first appearance of the solid salts. Acetone is a good solvent for Sn2 reactions because it is a polar aprotic solvent. We will be examining Sn2 reactions with an ethanolic solution of silver nitrate. The silver ion coordinates with a lone pair on the halogen which begins to
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Unit 6 Lab Report 1. Objective: To find the percent composition of water in an unknown hydrate. 2. Materials: Goggles‚ apron‚ evaporating dish‚ hot plate‚ and stirring rod 3. Procedure: get the mass of a evaporating dish‚ put a sample of the hydrate onto the evaporating dish and mass the dish with hydrate. Put the dish with hydrate on the hot plate on high heat. Break up any clumps that form during the heating process. Observe any color
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2.3g Mass of filter paper: 0.9g Mass of filter paper and dry benzoic acid: 1.6g Net mass of the dry benzoic acid: 0.7g Step 4: Separating out the salt Mass of cup and sodium chloride: 3.3g Net mass of dry sodium chloride: 1.0g Data Table 1: Experiment Data |Grams|Percent of Mixture| Iron fillings|1.2g|30%| Sand|1.0g|25%| Table Salt|1.0g|25%| Benzoic acid|0.7g|18%| Total|3.9 g|72%| A. In the beginning of the lab‚ I thought that in order to separate all of the solids that the iron
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IB Chemistry Lab Report Design Example— Effect of Temperature on Solubility of Potassium Chloride in Water Research question How does temperature affect the solubility of potassium chloride in water? Hypothesis As the temperature of water increases‚ the particles of solid Potassium chloride‚ KCl‚ which are absorbing energy from its surrounding‚ start moving more easily between the solution and its solid state because. According to the second law of thermodynamics‚ the particles will
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RC II-1 Science/Sensory Age: 5-years-old Activity: St. Patrick’s Sensory Box Goal: To help the kids explore with their hands. Materials and processes: Green rice or green sand‚ spoons‚ green plastic/glass gems‚ foam shamrocks‚ gold coins‚ mini cauldrons‚ a rainbow‚ and a few magnifying glasses. Teaching Strategies: Use the rice or sand to hide the objects‚ with the spoons and magnifying glasses have the kids look for the leprechaun’s gold‚ or find four leaf clovers. Developmentally
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another out. Birds use a pond for rest and food as they are usually less busy than a lake or larger body of water and have more to offer in the way of food. (http://library.thinkquest.org/04oct/00228/facts.html) Sodium Chloride is better known as salt. Salt has different uses and is the number one ingredient in brine that is used on dirt roads in the summer time to keep the dust down. It is used on roads in the winter time to decrease the freezing temperature on the roads so ice doesn’t form‚ creating
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benzoic acid began crystallizing in the ice bath as it started cooling. The sand in the beaker was heated very carefully to allow it to dry. After the sand was dried it was weighed. The benzoic acid and salt were separated. A filter paper was inserted in the funnel and the cup with the salt and benzoic acid was poured into the funnel. A graduated cylinder with 5mL of water was inserted into the ice bath; this was poured into the funnel to eliminate any of the sodium chloride that may have been
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as a solution. Water and Sodium Chloride were compounds given they are two or more elements‚ while mixing them we were able to create a solution. The Nacl that dissolves into H20 are techinically dissociated into ions but after heating it the table salt comes back without H20. Introduction Matter is anything that occupies space and has a mass. It can be classified into elements‚ compounds and mixtures. Pure substances are divided into categories as elements and compounds. Elements cannot be
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colors of light after they are excited by high levels of electrical energy (as in the neon signs) or heat energy (as in the fireworks). For example‚ sodium is a very strong emitter of yellow light. This can sometimes be seen by putting ordinary table salt (sodium chloride) into a candle flame. Sodium emission due to electrical excitation is also what produces the saturated yellow colors seen in some street lights and parking lot lights in large cities. A variety of atoms and molecules are
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