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03-03-2008, 07:03 AM
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| Some college chemistry questions? Hey can anyone help me do these problems? Anything will be greatly appreciated. First problem... A useful application of oxalic acid is the removal of rust (Fe2O3) from, say, bathtub rings according to the reaction given below. Fe2O3(s) + 6 H2C2O4(aq) 2 Fe(C2O4)33-(aq) + 3 H2O + 6 H+(aq) Calculate the number of grams of rust that can be removed by 2.00 102 mL of a 0.600 M solution of oxalic acid, H2C2O4(aq). Second problem...This one is so easy but for some reason I can't get the right answer An argon ion laser emits light at 489 nm. What is the frequency of this radiation? I keep getting 6.10*10^14 and I guess that's not right. Thanks in advance. Hey I just realized that I was incorrectly entering the solution to that second one. That one is right but if anyone could help me with the first one I would appreciate it.      |
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