report_alkali

report_alkali - Kevin Dang Partner Thao Truong Title...

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Kevin Dang Partner: Thao Truong Title: Identification of an Unknown Alkali Carbonate CHM 151LL Wednesday: 1:00- 2:30 (section 54114) Instructor: Dr. Leary March 24, 2010 Introduction In this lab, the unknown Alkali Carbonate was determined using stoichiometry. The mass of an unknown alkali, which was labeled “sample B”, was recorded, and then reacted with HCl 6M solution. The solution product was evaporated to find the mass of MCl created. Using stoichiometry, calculate the unit mass of the alkali, and compare the result to the periodic table. Procedure Measure an empty dish A. Put about 1.0 g of the sample B of an unknown alkali carbonate in dish A. Measure the mass of dish A with the substance. Using a pipet, add HCl 6M slowly to the dish until there is no bubble show up. The reaction: M 2 CO 3(aq) + 2 HCl (aq) = 2 MCl (aq) + H 2 O (l) + CO 2(g) (*) Turn on hot plate to evaporate the solution in dish A. Measure the mass of dish A, which contains dried substance.
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This note was uploaded on 10/16/2011 for the course CHEM CHEM 106 taught by Professor Macedone during the Spring '10 term at BYU.

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report_alkali - Kevin Dang Partner Thao Truong Title...

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