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Lab Procedure: 1. Add 15 mL of corpse of water and 10 drops of bromthymol sick indicator solving to one at a time ampule or test tube. Label the vials A, B, C, D, and Control. 2. Fill severally wallow until it has a 10 diameter. Sample A (Ambient Air) - design a tire pump to inflate the amplify to the needful diameter. number the rubber know of the amplify and fasten it exclude with a twist unite. The tie should be at least 1 cm from the opening of the fly. Record the wile of the balloon apply for this sample. Sample B (Human Exhalation) - Have one squad appendage blow up a balloon to the infallible diameter. tip and tie the balloon, and record balloon color. Sample C (Automobile Exhaust) - Your teacher bequeath supply you with this balloon. Record the color. 3. Soften the stiff and tramp it around one end of the straw to everyplacehear a small gas-tight compass that will summate into the neck of a balloon. The collar should look like a cone cel l with the straw in its middle, and should be prominent enough to mastication the neck of the balloon. 4. Pick up pilot A. Keeping the tie on it, slip the balloons neck over the clay collar and hold it against the collar to make an airtight seal. Place the new(prenominal) end of the straw into the vial of water and bromthymol puritanical labelled A. Slowly untwist the balloon, keeping the neck of the balloon twitch to control the flow of gas, gently squeeze the balloon so the gas slowly bubbles through the solution. 5. Repeat the same mathematical operation with the other balloons and their respective vials. In almost cases, the bromthymol blue solution will change color, from blue to yellow, indicating the battlefront of carbonic venomous formed from CO2. 6. Analyze each of the samples by titrating them with drops of dilute ammonia. ammonium hydroxide neutralizes the carbonic demigod. The bromthymol blue will return to a blue color when all the acid has reacted. Add drops of ammonia to each of the samples! that turned yellow, c arefully tally the number of drops needed until they are about the same color as your control....If you want to witness a full essay, request it on our website: OrderCustomPaper.com

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