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An 800-mg sample containing sulfate

An analytical chemist determines that an estuarine water sample contains 1.5 g/L of sulfate ion. What is the concentration in
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2. asked by Laura
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A 0.1818 g sample of sodium oxalate required 28.12 ml of a potassium permanganate solution to reach the endpoint (assume the
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The sulfate in a 0.2345 g sample of a mixture containing only K2SO4 (fm = 174.26) and Na2SO4 (fm = 142.04) is to beanalyzed by
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2. asked by Esraa
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An enzyme sample contains 24 mg protein/mL. Of this sample, 20 microliters in a standard incubation volume of 0.1 mL catalyzed
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Assuming the sample is pure sodium sulfate, how many mL of 5% BaCl2.2H20 solution would be required to precipitate the sulfate.
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2. asked by Mika
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Sorry, I have been stuck on this question. I would appreciate if someone could help me out.Approx how many mL of 0.25M BaCl2
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2. asked by Mike
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Describe how a pure dry sample of pure calcium sulfate can be prepared from sodium sulfate as one of the reagents
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2. asked by Agatha
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A 2.50 gram sample of bronze was dissolved in sulfuric acid. The copper in the sample reacted with sulfuric acid to form copper
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2. asked by Dave
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When a (1.797x10^0) g sample of CuSO4 * 5H2O (Copper II Sulfate Pentahydrate) and NaCl was heated, a total sample of
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2. asked by Emma
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A chemist added an excess of sodium sulfate to a solution of a soluble barium compound to precipitate all of the barium ion as
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2. asked by Anna
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