Do Not Remove CLASS SET Do NOT Write on Name & Title 10 pts Stoichiometry Lab BACKGROUND The reaction of a carbonate with an acid is an example of a common chemical reaction. One particular example is the reaction of acetic acid (vinegar) with sodium hydrogen carbonate (baking soda). This reaction produces a salt, carbon dioxide and water. A similar reaction is used by geologists to test rocks for the presence of limestone (calcium carbonate) and could lead them to find oil. If bubbles form, then the rock contains limestone. Objectives (Copy WRyour notebooks): (10 points) The objectives of this lab are: v to experimentally determine the mass of NaCl that will be produced in this reaction (actual yield), v to calculate the theoretical yield of NaCl from the mass of baking soda you started with v to determine the % yield for the salt produced in the lab. 352&('85( <RXPXVWGUDZ\RXURZQGDWDWDEOH SRLQWV both Weigh an empty crucible and add 0.10 grams of NaHCO3 (Eaking Voda) into it. Record on data table Add HCl dropwise, until no more bubbles are produced. 3ODFHFUXFLEOHRQKRWSODWHDQGVHWKRWSODWHWR0HGLXPKHDW Keep the crucible on a hotplate XQWLOall the moisture evaporateV. When dry, turn off the hotplate and UHPRYHWKH crucibles ZLWKWRQJVRUKRWKDQGV $OORZWRFRROdown.IRUPLQXWHV FDOFXODWLRQVZRXOGEHDJRRGXVHRIWLPH Weigh the crucible to find the mass of NaCl (Valt) formed. Record on Data table DATA TABLE (Draw your own) CALCULATIONS Copy the balanced equation for this reaction is written below and fill in the correct physical states. (10 points) BBBNaHCO3(__)+ BBB HCl(__) !BBB NaCl(__) + BBBCO2(__) +BBBH2O(__) Calculate the theoretical yield of NaCl based on the amount of sodium hydrogen carbonate that you started with. (Show Work) SRLQWV Calculate the % yield using your actual yield of NaCl and the theoretical yield you calculated above. (Show Work) (10 points) Write down some probable reasons for the error and how it can be minimized? (10 points) Write down one significance of measuring quantities accurately in our daily lives. (10 points) Clean Up: (10 points)