Thursday, August 11, 2011
Chem AP is killing me. Help?
In the laboratory, 6.67 g of Sr(NO3)2 is dissolved in enough water to form 0.850 L of solution. A 0.100-L sample is withdrawn from this stock solution and titrated with a 0.0460 M solution of Na2CrO4. What volume of Na2CrO4 solution is needed to precipitate all the Sr2+(aq) as SrCrO4?
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