Experiment 5: Percent Water in a Hydrated Salt Chemistry 1300 Instructor: 2/8/12 Abstract: The purpose of this experiment was to determine the percent by mass in a hydrated salt‚ as well as to learn to handle laboratory apparatus without touching it. The hydrated salt‚ calcium carbonate‚ was heated with high temperature to release water molecules. Gravimetric analysis was used in this experiment to determine the percent by mass of water in a hydrated salt. The hypothesis of this experiment
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Salt and the effect it has on water. Do you like salt? Do you put it on your food to make it taste better? Salt doesn’t just make food taste better; it can change the freezing and boiling point of water. I bet you didn’t know that! There’s a reason for that‚ but I’ll explain that a little later. First‚ let’s find out if salt can actually change the freezing and boiling point of water. To do so‚ we need to do an experiment. Now‚ if you’re going to do an experiment‚ you’re going to need a hypothesis
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up a hydrated salt in order to determine the percentage of water inside of this hydrated salt. We heated up the salt in order to boil off the water‚ which allowed us to find the weight of the CuSO4 by itself. By comparing this final weight with the original weight and subtracting the difference‚ we were able to compile data about how much the weight of the hydrated salt decreased as the water gradually boiled away. In doing so‚ we were able to find the total weight of the water in the hydrated salt
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Investigation of a Hydrated Salt Table of Calculations: ³ Unknown #2 Weight of hydrate before heating .9989g Weight hydrate after heating .6534g Weight of water .3455g Mole of water in hydrate .0192mol Mole of anhydrous salt: CuSO4 .004094mol CuCl2 .004859mol CoCl2 .005033mol Mole ratio of water to each of the anhydrous salts: CuSO4 4.69
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15 Problem: Can water float on water? Introduction: Can water float on water some say ye because ice can float but we are talking about water on top of water. The salt water and fresh will have different effects on the experiment. The experiment also see if the warmer the water is the different way it look. Purpose: The reason that I am doing this project is to see if water can float on water and to see the water at different densities‚ and salinity. To see if the salt water would sit on the
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Lab experiment 12 Percent of water in a hydrate The goal of Experiment 12 was to learn how to calculate the percent of water (by mass) in barium chloride and an unknown hydrate salt‚ as well as properly calculating the water of crystallization for the unknown hydrate salt. A hydrate salt is composed of anions (-) and cations (+) surrounded by a fixed number of water molecules‚ called water of crystallization. The hydrate decomposes upon heating and
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battery my salt water battery has the three main components‚ the electrolyte (in case you didn’t know its like a liquid that conducts th electric current (I hope I spelt that right))‚ a cathode (the negative electrode) and the an anode (the positive electrode). As you may or may not know a chemical reaction must occur so that that chemical energy can be converted into electrical energy which is then used for whatever. In my salt water battery the electric current passes through the salt water which separates
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SALT WATER Introduction: Salt water refers to water that contains dissolved salts‚ known as saline water or seawater‚ water from oceans or seas. It is a home to varieties of aquatic animals‚ for example‚ fishes and snails. Some of these animals find it difficult to live in fresh water. If salt water animals go to live in fresh water they can not adapt the environment led to die to them. This essay aims to discuss the importance of salt water and the sub- types namely ocean‚ sea‚ and coral reefs
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Hydrated Crystals Lab Pre-Lab Questions Observations of hydrated MgSO4 | Shiny‚ clear‚ chunks of crystals‚ white | Mass of crucible and lid | 11.36 grams | Mass of crucible‚ lid‚ and hydrated MgSO4 | 14.38 grams | Mass of hydrated MgSO4 | 3.00 grams | Mass of crucible‚ lid‚ and anhydrous MgS04 | 12.82 grams | Mass of anhydrous MgSO4 | 1.45 grams | Mass of water in hydrated MgSO4 | 1.55 grams | Moles of anhydrous MgSO4 | 0.0120 moles | Moles of water in hydrated MgSO4 |
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Objective 1. Use the analytical balance to weigh a given hydrated salt as accurate as possible in order to determine the weight of water in the salt Introduction Balances are important laboratory equipment as they are used to determine the mass of materials. Today‚ most balances used in the laboratory are analytical balances which can give readings up to four decimal places or higher. High accuracy is needed in certain experimental work such as material analysis or those involving small change
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