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Materials Needed semi-micro test tubes and rack solid I2 regular test tubes and rack squash pipettes solid CusO4-SH,0 food dye solid (NH4)½SO4 heavy metals waste container halogenated waste container non-halogenated waste container acetone суclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids Place a small amount (about the size of I grain of rice, see picture) of copper sulfate into cach of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 1. 2. Repeat step I using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you can re-use them in the next step without further cleaning. 4. 5. Repeat steps 1-4 but replace the copper sulfate with a tiny piece of solid iodine (I) in each of the test tubes. Discard these mixtures into the halogenated waste container in the fume cupboard. Complete the following table with regard to the solubility of cach substance in the various solvents. Water Acetone Cyclohexane Copper sulfate lodine

Materials Needed semi-micro test tubes and rack solid I2 regular test tubes and rack squash pipettes solid CusO4-SH,0 food dye solid (NH4)½SO4 heavy metals waste container halogenated waste container non-halogenated waste container acetone суclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids Place a small amount (about the size of I grain of rice, see picture) of copper sulfate into cach of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 1. 2. Repeat step I using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you can re-use them in the next step without further cleaning. 4. 5. Repeat steps 1-4 but replace the copper sulfate with a tiny piece of solid iodine (I) in each of the test tubes. Discard these mixtures into the halogenated waste container in the fume cupboard. Complete the following table with regard to the solubility of cach substance in the various solvents. Water Acetone Cyclohexane Copper sulfate lodine

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter14: Chemical Equilibrium
Section: Chapter Questions
Problem 14.67QE
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Materials Needed solid I2 solid CUSO4-5H20 food dye solid (NH4)2SO4 heavy metals waste container halogenated waste container non-halogenated waste container semi-micro test tubes and rack regular test tubes and rack squash pipettes acetone cyclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids 1. Place a small amount (about the size of 1 grain of rice, see picture) of copper sulfate into each of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 2. Repeat step 1 using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you can re-use them in the next step without further cleaning. 4. Repeat steps 1-4 but replace the copper sulfate with a tiny piece of solid iodine (I2) in each of the test tubes. Discard these mixtures into the halogenated waste container in the fume cupboard. 5. Complete the following table with regard to the solubility of each substance in the various solvents. Water Acetone Cyclohexane Copper sulfate lodine
Transcribed Image Text:Materials Needed solid I2 solid CUSO4-5H20 food dye solid (NH4)2SO4 heavy metals waste container halogenated waste container non-halogenated waste container semi-micro test tubes and rack regular test tubes and rack squash pipettes acetone cyclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids 1. Place a small amount (about the size of 1 grain of rice, see picture) of copper sulfate into each of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 2. Repeat step 1 using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you can re-use them in the next step without further cleaning. 4. Repeat steps 1-4 but replace the copper sulfate with a tiny piece of solid iodine (I2) in each of the test tubes. Discard these mixtures into the halogenated waste container in the fume cupboard. 5. Complete the following table with regard to the solubility of each substance in the various solvents. Water Acetone Cyclohexane Copper sulfate lodine
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