2. A feed ingredient gave the following percentage analysis moisture (16.0%), protein (18.0%), and fibers and minerals (66.0). If the moisture content were to be reduced by drying material in order to bring up the protein to 20.0%, what should be the final moisture content be?
3.A 1.367g sample of an organic compound was combusted in a stream of dry oxygen to yield 3.002g CO2 and 1.640 H2O. If the organic compound contained only C, H, and O. what its empirical formula?
4. How many molecules are there in 20.0g of benzene, C6H6.
5.Many crystalline compounds contain water of crystallization that is driven off when the compound is heated. The loss of weight in heating can be used to determine the formula. For example, a hydrate of barium chloride, BaCl2. H2O, weighing 1.222g is heated until all the combined water is expelled. The day power remaining weighs 1.042g. Compute the formula for the hydrate.
6. A 5.135g sample of impure limestone (CaCO3) yields 2.050g of CO2 when treated with an excess of acid. Assuming that limestone is only the component that would yield CO2, Calculate the percentage purity of the limestone sample.
7.A compound aluminum sulfate reacts with barium chloride.
a.) Give the chemical equation for the reaction.
b.)Balance the equation
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