CHEM 1201 : Exam 1
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It decomposes to form an off-white solid b and a gas c. the gas has the same properties as the product obtained when carbon is burned in excess oxygen. Cah2 + 2h2o ca(oh)2 + 2h2: 76 g cah2, 38 g cah2, 103 g cah2, 15 g cah2, 42 g cah2. The molecular formula for aspartame (nutrasweet) is c14h18n2o5. (mw = 294 g/mol) Determine the empirical formula of the compound with the mass composition. Hclo: 4. 38 1020molecules, 2. 05 1018 molecules, 1. 99 1022 molecules, 6. 22 1021 molecules, 5. 73 1015 molecules. 24. 5% na, 14. 9% si, 60. 6% f: na2sif6, nasi2f5, na3sif3, na2si2f3, nasi2f4. Choose the correct balanced net ionic reaction when a lead(ii) acetate solution reacts. Specify which chemical species are present when nh4c2h3o2 dissolves in water. Calculate the concentration of the ions in a solution prepared by dissolving 8. 21 g of: n3- and c2h7o23, nh3 and c2h4o2.
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