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In a 0.250 M solution of Na3PO4 , the co...

In a 0.250 M solution of `Na_3PO_4` , the concentration of the sodium ions would be:

A

0.250 M

B

0.750 M

C

1.99 M

D

0.0833 M

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Lower `[S^(2-)]` is required for CdS so it will precipitate first
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