How can I write the reaction? For each station, write the formula for the reactants used, and include the states.a. Station 1: __________ + __________b. Station 2: __________ + __________c. Station 3: __________ HINT: The yeast is a catalyst, not a reactant.d. Station 4: __________ + __________ HINT: Consider the reaction between dry ice and water only. Station 3: Hydrogen Peroxide (H,02) and Yeast1. Clean your small graduated cylinder by rinsing with water. Carry your small cylinder, your spatula,and ONE of your large test tubes in a 250 mL beaker to station 3.2. Using your spatula, add a pea size amount of yeast to the test tube.3. Measure about 2 mL of 3% hydrogen peroxide in your small graduated cylinder.4. BEFORE you add the hydrogen peroxide to the yeast, have the other lab partner light a woodensplint. Allow it to burn for a few seconds, and then gently blow out the flame so that it leaves some redglowing embers.5. With the test tube sitting propped up in the 250 mL beaker, add the hydrogen peroxide to the yeastand immediately bring the red glowing embers in contact with the bubbles coming out of the test tube.NOTE: You do not want to get the wood splint wet. You just want to bring it into contact with the gasin the bubbles.6. Record your detailed observations in the data section, and return to your lab bench.7. Use water to dislodge the contents of the test tube into your waster beaker. The wooden splint goesinto the garbage.Station 4: Dry Ice (solid CO2) and WaterAt station 4 you will use a color-changing indicator to show the pH of the solution as reactions proceed.There are many color-changing indicators, but we will be using the universal indicator. A color scalewill be provided to you in the lab, but in general the colors will change as follows:pH 4 (acidic) = orangepH 7 (neutral) = greenpH 10 (basic) = blue1. Carry your 150 mL beaker and stir rod to station 4.2. Fill the beaker about one-fourth full of tap water. Add 7-10 drops of the universal indicator and stir.Note the color, and record your observations in the data section.3. Add 7-10 drops of the ammonia solution (possibly labeled as ammonium hydroxide). Again, note thecolor and record your observations in the data section.4. Using the tongs provided, place 1-2 pieces of dry ice (total size about that of a nickel or quarter) intoyour beaker and observe for about 1 minute. Please do NOT take excess dry ice! There are other labsections that will need dry ice too!5. After 1 minute has passed, note the color and record your observations in the data section. Return toyour lab bench.6. Pour the contents of the beaker into your designated waste beaker.All remaining solutions from stations 1-4 can be combined into your 150 mL waste beaker, and thencollected in the labeled waste container in the hood. All wood splints go in the regular trashcan. Pleasedo not leave them in the sinks or broken glass containers! Station 1: Barium Chloride and Sodium Sulfate1. Carry ONE of your large test tubes in a 250 mL beaker to station 1. Add 1-2 mL (about the width of1 index finger) of i M barium chloride to the test tube.2. With the test tube sitting propped up in the 250 mL beaker, add about the same amount of 1 Msodium sulfate to the test tube.3. Record your detailed observations in the data section and return to your lab bench.4. Pour the contents of the test tube into your designated waste beaker. You can use water to dislodgeany solids, but be sure to add this to the waste beaker also.Station 2: Magnesium and Hydrochloric Acid1. Carry your small graduated cylinder and ONE of your large test tubes in a 250 mL beaker to station2.2. Roll three magnesium strips into balls and drop them into the empty test tube.3. Measure about 2 mL of 3 M hydrochloric acid in your small graduated cylinder.4. BEFORE you add the 3 M hydrochloric acid to the magnesium, have your lab partner light a woodensplint.5. When ready with the splint, add the acid to the test tube with the magnesium ribbon, and immediatelyhave your partner hold the lit end of the splint inside the top of the test tube. NOTE: The flame shouldnot be placed so far down that it reaches the liquid in the test tube!6. Record your detailed observations in the data section and return to your lab bench.7. Add a pea size amount of solid sodium bicarbonate to the test tube, and then pour the entire contentsinto your waste beaker. You can use water to dislodge any solids, but be sure to add this to the wastebeaker also.

Answered: How can I write the reaction? For…

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...