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A student was analyzing an unknown containing only Group IV cations. When the unknown was treated with 3M (NH4)2CO3 solution a white precipitate formed. Because the acetic acid bottle was empty , the student used 6M HCl to dissolve the precipitate. Following the procedure of this experiment the student then added 0.10M K2CrO4 solution as directed, and no percipatation formed. Oxalic acid was added to the solution and no precipitation formed.
a. what mistake sis the student make?
b. How did the mistake affect affect the tests for the cation in solution
hydrogen peroxide usually comes commercially as a 30 wv aqueous solution with a density of 1.106 gml. calculate the
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At what Kelvin temperature will the reaction proceed 3.50 times faster than it did at 351 K?
A solution contains some or all of the ions Cu^{2+}, Al^{3+}, K^+, Ca^{2+}, Ba^{2+}, Pb^{2+}, and {NH_4}^+. The following tests were performed, in order, on the solution
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How much heat is required to raise the temperature of 48.5g of water from its melting point to its boiling point. Express your answer numerically in kilojoules. Can someone answer this for me in decimal form
assume that ethanol c2h5oh of 155 grams at the temperature of 25 degrees celsius nbspis mixed with 250 grams of
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
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