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Practical Chemistry Final exam Review Packet January 2011 This packet may be used to help you complete your 2011 Practical Chemistry Final Exam. You will be allowed to use this packet and your notebook on the Exam. Print Your Full Name: ______________________________________________ Teacher: _____________________________ 1 Block: _______ Final Exam Review Questions Paper Chromatography Lab 1. What is chromatography? 2. How could you separate a pen with permanent ink? (What liquid would you use?) Bunsen Burner Lab 1. Draw and label the parts of the Bunsen Burner below: a. Barrel b. Air vents c. Needle valve d. Hose e. Base 2. Describe the PROPER PROCEDURE for lighting a Bunsen Burner and creating a good chemistry flame. 3. Explain how you would make a BLUE flame and a YELLOW flame by adjusting the barrel. Blue Flame - Yellow Flame - 2 4. Draw a “good chemistry flame” and label the hottest part and the coldest part. How did you prove that this was the coldest part of the flame? 5. What is the chemical reaction that takes place in the Bunsen Burner to create a flame? Glass Lab 1. What does hot glass look like? 2. What is a wing tip used for? Electromagnetic Radiation Notes 1. List 3 primary colors. 2. List 3 secondary colors. 3. Label the following on the wave below: a) crest b) trough c) amplitude d) frequency 3 4. What is the speed of light? ____________________________ 5. Draw the electromagnetic spectrum below and include all the different types of electromagnetic radiation. ROYGBIV Emission Spectra Lab 1. Explain how the emission spectrum of an element is created. Be sure to discuss electron movement, excited states and ground states. 2. Why is an emission spectrum of an element just like a fingerprint? 3. How is a diffraction grating similar to a prism? 4 Flame Test Lab 1. Complete the following table: Element Color Symbol and Charge (ION) Copper Potassium Strontium Lithium Calcium Sodium Barium 2. Why do the ions have a “+” written next to their symbol? 3. What part of the element provided the color to the flame? FERMENTATION LAB 1. What is fermentation? 2. Draw the diagram of the fermentation process and label the following: a. Mash b. water trap c. carbon di-oxide bubbles. 5 3. Write the fermentation equation. 4. Explain the process of producing alcohol from the mash (cranberry juice, sugar and yeast) 5. How can you tell if the yeast is alive? 6. What is the water trap used for? DISTILLATION LAB 1. Define the following: a. Solution: b. Solute: c. Solvent: 2. Draw a distillation set-up and label the following a. Bunsen Burner b. Condenser c. Distilling Flask d. Where vaporization takes place. e. Where the thermometer goes. f. Where the cold water enters. g. The distillate. 6 Diagram: 3. Explain the reason the temperature of the vapor should not be much higher than 80 C? 4. What method is used to separate alcohol and water? ACIDS AND BASES LAB 1. How can you identify an acid from its chemical formula? 2. How can you identify a base from its chemical formula? 3. Give two examples each of an acid and a base. 7 4. Draw the pH scale and label: Strong acid, weak acid, neutral, weak base and strong base 5. What color does litmus paper change to in turn to with an acid? 6. What color does litmus paper change to in turn to with a base? 7. Write the neutralization reaction. 8