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Explain why {eq}NaOH {/eq} is not the best test reagent for detecting {eq}Pb^{2+} {/eq}.

Question:

Explain why {eq}NaOH {/eq} is not the best test reagent for detecting {eq}Pb^{2+} {/eq}.

Solubility Rule:

The solubility rules allow the prediction of how certain chemical compounds will react with each other or in aqueous solutions. Since some compounds easily dissolve, and others form a precipitate, these rules allow the behavior of each species to be predicted in chemical reactions. Generally, solubility can be easily predicted by the principle "like dissolves like", but these can still be affected by factors such as pressure and temperature.

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First, hydroxides easily form precipitates with various cations. Second, even if {eq}\rm{Pb(OH)_2 }{/eq} precipitates, it will be redissolved in the...

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Solubility of Common Salts: Predicting Reaction Outcomes

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Chapter 12 / Lesson 4
40K

Learn whether or not salt is soluble in water. Understand what happens when salt dissolves in water and predict the NaCl solubility by using a salt solubility table.


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