In the lab, we calculate the ion product and compare it to the *Ksp* from the reference book—it's a clear-cut rule. But *yaar*, my real answer is you can't truly predict it until you run the test. Just last week, a batch of calcium lactate gave a hazy precipitate no textbook predicted, all because of a tiny shift in pH from our Hyderabad water. So now, I trust the chromatography readout more than my own calculations.
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