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The following reaction will be examined: HSO4 (aq) + H2O (1) SO42 (aq) + H3O+ (aq) o Obtain about 5 mL (one small test tube) of "NaHSO4 solution" and "Na2SO4 solution" in two appropriately labeled test tubes. In a well plate as shown in Figure 2, take 10 drops of NaHSO4 into wells A1, A2 and A3, and 20 drops to wells A4 and A5 using a Beral pipet. o Add 1 drop of Thymol Blue indicator solution to wells A1 to A5. Mix each solution (being careful not to spill the solutions out of the wells) and record the color of each well in your notebook. Thymol Blue is red in very acidic solution, and changes from red to yellow between pH 1.2- 2.8. Beral Pipette 。 Using a clean Beral pipet, add one drop of Na2SO4 to well A1. Mix the solution carefully by swirling the well plate and compare the color of well A1 with the color of well A2. Is the color changing towards yellow or darker red? Record the observations. Continue to add drops of Na2SO4 to well A1 until you see a color change, making sure to mix the solution after the addition of each drop (do not use the pipet tip to mix the solutions). 。 Using a micro spatula, add a crystal of NaHSO4 to well A3. Stir the mixture and record any color changes in your notebook (compare with the color in well A2 Is the color changing towards yellow or darker red?). Continue adding crystals until a color change is observed. Record the

The following reaction will be examined: HSO4 (aq) + H2O (1) SO42 (aq) + H3O+ (aq) o Obtain about 5 mL (one small test tube) of "NaHSO4 solution" and "Na2SO4 solution" in two appropriately labeled test tubes. In a well plate as shown in Figure 2, take 10 drops of NaHSO4 into wells A1, A2 and A3, and 20 drops to wells A4 and A5 using a Beral pipet. o Add 1 drop of Thymol Blue indicator solution to wells A1 to A5. Mix each solution (being careful not to spill the solutions out of the wells) and record the color of each well in your notebook. Thymol Blue is red in very acidic solution, and changes from red to yellow between pH 1.2- 2.8. Beral Pipette 。 Using a clean Beral pipet, add one drop of Na2SO4 to well A1. Mix the solution carefully by swirling the well plate and compare the color of well A1 with the color of well A2. Is the color changing towards yellow or darker red? Record the observations. Continue to add drops of Na2SO4 to well A1 until you see a color change, making sure to mix the solution after the addition of each drop (do not use the pipet tip to mix the solutions). 。 Using a micro spatula, add a crystal of NaHSO4 to well A3. Stir the mixture and record any color changes in your notebook (compare with the color in well A2 Is the color changing towards yellow or darker red?). Continue adding crystals until a color change is observed. Record the

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Use the provided description of an experiment to determine 2 net ionic equations for the changes done to the reaction. (Please note the website may have put the second photo before the first photo, so be sure to read them both). Thank you.

The following reaction will be examined: HSO4 (aq) + H₂O (1) SO4² (aq) + H30+ (aq) o Obtain about 5 mL (one small test tube) of "NaHSO4 solution" and "Na2SO4 solution" in two appropriately labeled test tubes. o o In a well plate as shown in Figure 2, take 10 drops of NaHSO4 into wells A1, A2 and A3, and 20 drops to wells A4 and A5 using a Beral pipet. Add 1 drop of Thymol Blue indicator solution to wells A1 to A5. Mix each solution (being careful not to spill the solutions out of the wells) and record the color of each well in your notebook. Thymol Blue is red in very acidic solution, and changes from red to yellow between pH 1.2- 2.8. Beral Pipette o Using a clean Beral pipet, add one drop of Na2SO4 to well A1. Mix the solution carefully by swirling the well plate and compare the color of well A1 with the color of well A2. Is the color changing towards yellow or darker red? Record the observations. Continue to add drops of Na2SO4 to well A1 until you see a color change, making sure to mix the solution after the addition of each drop (do not use the pipet tip to mix the solutions). o Using a micro spatula, add a crystal of NaHSO4 to well A3. Stir the mixture and record any color changes in your notebook (compare with the color in well A2 - Is the color changing towards yellow or darker red?). Continue adding crystals until a color change is observed. Record the color change. Take some deionized water in a 50 mL beaker. Rinse the Beral pipets used earlier with this water by filling the pipets and expelling the solution into a 100 mL beaker that can temporarily be used
Transcribed Image Text:The following reaction will be examined: HSO4 (aq) + H₂O (1) SO4² (aq) + H30+ (aq) o Obtain about 5 mL (one small test tube) of "NaHSO4 solution" and "Na2SO4 solution" in two appropriately labeled test tubes. o o In a well plate as shown in Figure 2, take 10 drops of NaHSO4 into wells A1, A2 and A3, and 20 drops to wells A4 and A5 using a Beral pipet. Add 1 drop of Thymol Blue indicator solution to wells A1 to A5. Mix each solution (being careful not to spill the solutions out of the wells) and record the color of each well in your notebook. Thymol Blue is red in very acidic solution, and changes from red to yellow between pH 1.2- 2.8. Beral Pipette o Using a clean Beral pipet, add one drop of Na2SO4 to well A1. Mix the solution carefully by swirling the well plate and compare the color of well A1 with the color of well A2. Is the color changing towards yellow or darker red? Record the observations. Continue to add drops of Na2SO4 to well A1 until you see a color change, making sure to mix the solution after the addition of each drop (do not use the pipet tip to mix the solutions). o Using a micro spatula, add a crystal of NaHSO4 to well A3. Stir the mixture and record any color changes in your notebook (compare with the color in well A2 - Is the color changing towards yellow or darker red?). Continue adding crystals until a color change is observed. Record the color change. Take some deionized water in a 50 mL beaker. Rinse the Beral pipets used earlier with this water by filling the pipets and expelling the solution into a 100 mL beaker that can temporarily be used
as a discard container. Repeat this process 2-3 times, to clean the Beral pipettes. Effect of Temperature: o Draw the solution in well A4 into one of the rinsed Beral pipets. Invert the pipet carefully so that the solution flows into the pipet bulb. Tap the side of the pipet stem carefully with your fingers to drain all the solution into the bulb. Place this inverted pipet into a hot water bath. o Following the same procedure, fill the other rinsed Beral pipet with the solution from well A5. Place the bulb of the pipet into an ice-water bath. o Swirl the pipets in both baths occasionally so that the temperature in the bulb is the same as the bath temperature. Record any color changes in your notebook. A comparison of the color of A4 with A5 will help you in your analysis. Using deionized water, thoroughly rinse and clean the test tubes and Beral pipets. Discard the solutions into another beaker. o o
Transcribed Image Text:as a discard container. Repeat this process 2-3 times, to clean the Beral pipettes. Effect of Temperature: o Draw the solution in well A4 into one of the rinsed Beral pipets. Invert the pipet carefully so that the solution flows into the pipet bulb. Tap the side of the pipet stem carefully with your fingers to drain all the solution into the bulb. Place this inverted pipet into a hot water bath. o Following the same procedure, fill the other rinsed Beral pipet with the solution from well A5. Place the bulb of the pipet into an ice-water bath. o Swirl the pipets in both baths occasionally so that the temperature in the bulb is the same as the bath temperature. Record any color changes in your notebook. A comparison of the color of A4 with A5 will help you in your analysis. Using deionized water, thoroughly rinse and clean the test tubes and Beral pipets. Discard the solutions into another beaker. o o
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