This folder contains experiments from the Curriki repository. In many cases, teacher notes and answer keys are not included, and will require some preparation on the teacher's part.

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Lab - Percent Carbon

by Curriki Textbook Group

This resource is a lab on The Mass Percentage of Carbon in Sodium Bicarbonate.
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Lab - Percent Composition of Water

by Curriki Textbook Group

This resource is a lab, with the purpose of finding the percentage of water in crystallized copper (II) sulfate.
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This resource is a Word document that serves as a class data sheet for lab on the law of definite proportion.
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This resource is a short slideshow giving procedures for a lab. Here's the important part: 1) Mass dry evaporating dish, and watch glass.* 2) Add a small amount of hydrated CuSO4 to evaporating dish.* 3) Heat under burner until white (may need to stir with stirring rod. 4) Mass dried CuSO4 and evaporating dish.*
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Lab - Percent Composition of KClO3

by Curriki Textbook Group

In this lab, students will test the percent composition of KClO3. "Potassium chlorate is one of several compounds of oxygen that are easily decomposed by heating. Potassium chlorate will decompose into oxygen and potassium chloride. In this laboratory exercise you will decompose this compound by heating, and from the data obtained determine the percentage of oxygen by weight in the compound."
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Lab - percent composition

by Curriki Textbook Group

This resource is a lab in which students test percent composition. From the introduction: "In this lab you will be given a mixture of either sodium or potassium chlorate and an inert material like sodium chloride. Your task will be to determine the percentage of the chlorate compound in the mixture."
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