How do we assess solubilities of chromates, and ammonium salts?

Answer 1

I would consult a text on solubilities.........

Chromates tend to be insoluble; ammonium salts, like alkali metal salts, tend to be soluble. Of course, there are exceptions. #"ammonium tetraphenyl borate"# is known to be quite insoluble. I cannot offer a simple way to remember them. I would try to remember your chemistry practicals..........

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Answer 2

Olivia Anton

Solubilities of chromates and ammonium salts can be assessed through experimental procedures involving the addition of the respective compounds to a solvent, such as water, and observing whether they dissolve or precipitate. Techniques such as gravimetric analysis, titration, and spectrophotometry can be employed to quantitatively determine solubility levels. Additionally, solubility product constant (Ksp) calculations can provide insight into the solubility behavior of these compounds under different conditions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.