Determining the Chemical Mixture of a Moisturizer Essay

Determining the Chemical Formula of a Hydrate

Chemistry 11

3/5/2013

Purpose: To determine the percent by mass of normal water in a moisturizer of water piping (II) sulfate hydrate. В Hypothesis: I actually hypothesize that after the solution is definitely heated the hydrate is going to convert to an anhydrous ionic compound. Then this percentage composition will be dependant on weighing the mass in the white uric acid.

Materials: 400ml beaker, sizzling plate, tongs, scoopula, digital balance, glass rod, hot pad, and 4g of hydrated birdwatcher (II) sulfate

Procedure:

1 ) Measure the mass of the beaker and stir rod.

installment payments on your Add 4g hydrated water piping (II) sulfate to the beaker.

a few. Measure the mass of the beaker with the hydrated copper (II) sulfate 5. Heat the beaker while using hydrated birdwatcher (II) sulfate until the deposits lose their particular blue color. Stir at times with the goblet rod although keeping the heat at a medium environment. 5. If the color adjustments stop warming the beaker and turn off the hot platter. Remove the beaker. Allow the beaker and crystals to awesome on a sizzling pad. six. Return the anhydrous water piping (II) sulfate to it is container. Usually do not put in drain or rubbish.

Conclusion: The experiment showed that the percent water within a hydrate can be found by carefully heating the hydrate to drive off the drinking water. Some of the hydrated copper (II) sulfate was light brownish, which is an indication of surplus heating. Excessive heating could cause decomposition of the copper (II) sulfate. Decomposition of the water piping (II) sulfate would bring about greater obvious water loss. That would clarify the slightly substantial values



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