Lab report 2 - Olivia Downs Section 9 In this experiment the purpose was to determine the identity of the unknown hydrate(s A hydrate is a compound

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Olivia Downs 10/6/2010 Section 9 In this experiment, the purpose was to determine the identity of the unknown hydrate(s). A hydrate is a compound that contains water molecules as part of their crystal structure. This crystal structure seems perfectly dry but when heated, the mass decreases because water is released. The solid that is left behind when the water molecules are heated from it is called the anhydrous. Knowing this, an experimental lab can be by calculating the percent water removed from the hydrate, as well as the anhydrous salt and plugged in among various equations. This method is very helpful because it helps determine the identity of an unknown hydrate. To determine the percent water in an unknown hydrate, a pre-lab was first done. We were given four hydrates and the molar mass of each anhydrous salt. The next step was to find the molar mass of the water in the hydrate and add that molar mass to the molar mass of its combined anhydrous salt to calculate the molar mass of the hydrate. To calculate the percent of
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This note was uploaded on 11/03/2011 for the course CHM 1045 taught by Professor Jackson during the Fall '10 term at Tallahassee Community College.

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Lab report 2 - Olivia Downs Section 9 In this experiment the purpose was to determine the identity of the unknown hydrate(s A hydrate is a compound

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