Lab 2 discussion - Metal iron will react with copper(II...

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Ishaan Karpe Chem Lab J4 Lab 2 Discussion A hydrate is a compound that contains water in it; this substance can then be heated to remove all the water which would make it an anhydrous substance. In the first part of Lab 2 an unknown hydrate was taken and then heated and measured three times to remove as much water as possible. Heating the substance in a crucible three times caused the water in the hydrate to turn into gas and escape the compound. This process can be called dehydration and the color of substance can change from the beginning to the end of the experiment. Using the masses recorded during the experiment the amount of water that was removed from the substance can be found. Then using these masses the percentage of water can be determined. Hydrates can contain varying amounts of water in them and the water can at times me a major percentage of the compounds molecular weight.
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Unformatted text preview: Metal iron will react with copper(II) sulfate hydrate to form copper metal and iron sulfate. The iron can ionize into a +2 or a +3 charge during this reaction. During the second part of Lab 2 copper(II) sulfate was put in 100mL of water and stirred well. Steel wool (iron) was then added to this solution and the solution was allowed to sit and react. After a few minutes there was a brown powder that formed and settled at the bottom of the beaker. This substance was the copper metal; iron sulfate had also formed and was now aqueous in solution. If all of the steel wool dissolves and there is no more copper(II) sulfate at the end of the reaction then iron(II) sulfate was one of the products of the reactions. This is because there are no limiting reagents when iron(II)sulfate is a product; however, there is a limiting reagent when iron(III) sulfate is formed....
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Lab 2 discussion - Metal iron will react with copper(II...

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