Friday, May 17, 2019

Making Salt Lab

Lets Make Salt Purpose Could NaCl be made using NaHCO3, hydrochloric acid, and a stewing chip? Hypothesis If I combined NaHCO3, hydrochloric acid, and a boil chip I think it will form NaCl because when you balance the equation it makes a new chemical substance reaction. Materials needed test electron tube cleaner, test tube, test tube tongs, hot plate, a scale, graduated cylinder, water, goggles, free retardant glove, beaker, test tube holder, a scoopula, hydrochloric acid, sodium bicarbonate, soap, pipette, and a boiling chip. Procedures 1.Clean your test tube with a test tube cleaner, soap, and water. Make sure the test tube is clean and dry. 2. Place a boiling chip in the test tube and measure it. 3. Add 1g of NaHCO3(sodium bicarbonate) to the test tube with the scoopula, then measure. 4. shoot about 5mL of hydrochloric acid in your graduated cylinder. Using your pipette add the hydrochloric acid to the NaHCO3. It will down to bubble, when the bubbling stops, dont add anym ore acid. 5. Once the bubbling stops, swirl whats interior the test tube to be sure everything mixes together. 6.Place the test tube in a beaker with water. It will offshoot to boil. Continue letting it boil until all liquid is evaporated out of the test tube. 7. Once the test tube cools off measure whats interior the test tube. 8. Place the test tube back inside the beaker on the hot plate for 2-3 minutes. 9. Allow the test tube to cool and re-weigh it again. Observation/Data NaHCO3+HClNaCl+water system+CO2 1gNaHCO3*1molNaHCO3/84gNaHCO3*1molNaCl/1molNaHCO3*58gNaHCO3/1molNaCl=. 6904761905 . 6904761905theoretical yield 1actual yield 1/. 6904761905=1. 448275862 1. 448275862*100=144. 275862 144. 8275862percent yield Mass of test tube & boiling chip 20g Mass of test tube, boiling chip & NaHCO3 21g Mass of NaHCO3(b-a) 1g Mass of test tube & boiling chip NaCl (1st hearing) 20g Mass of test tube & boiling chip NaCl (2nd hearing) 21g Mass of NaCl (e-a) 1g Conclusion My hypothesis was pu t because both substances together formed NaCl in the shutting. In the lab everything worked out right because in the end none of my masses were the same as I started with. It weighed 20g in the beginning and ended with 21g and the mass of NaCl 1g.

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