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Polly Esther determined the Ca2+ ion content of a 100 mL sample of calcium fortified orange juice. After adding 2.0 M HCl solution to the sample, she filtered the juice to remove the pulp and other particulate matter. Then the student added sodium carbonate (Na2CO3) solution to precipitate calcium carbonate (CaCO3). She recovered 0.2818 g of calcium carbonate from the mixture. There were [ ] mg (1 dec place) of Ca2+ in the sample. The density of the juice was 0.958 g/mL, therefore the mass percent of Ca2+ ion in the juice sample was [ ] %. (3 dec places)
Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..
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