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I have 250 mL of a solution that contains 0.05 M Zn(NO3)2, 0.100 M Cu(NO3)2 and 0.200 M Cd(NO3)2. I also have a solution that is BOTH 1.00 M K2CO3 and 0.500 M NaOH. If I start adding the K2CO3/NaOH mixture to my solution of metals, how much would I have to add before the FIRST precipitate formed? You may ignore the added volume from the K2CO3/NaOH mixture and consider the volume to be constant during the precipitation.

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