Give a formula for each of the following compounds: (a) a...

Give a formula for each of the following compounds:
(a) a soluble compound containing the bromide ion
(b) an insoluble hydroxide
(c) an insoluble carbonate
(d) a soluble nitrate-containing compound
(e) a weak Bronsted acid

Key Concepts

Insoluble Hydroxides and Carbonates

This concept refers to the fact that many hydroxide and carbonate compounds are insoluble in water. Except for exceptions involving alkali metals and ammonium compounds, these substances form precipitates in aqueous solutions. Understanding this helps in predicting which compounds will be insoluble and aids in writing their proper chemical formulas.

Weak Bronsted Acids

A weak Bronsted acid is one that does not completely dissociate in water when it donates a proton. This partial ionization means that the acid exists in equilibrium with its ions and undissociated molecules in solution, which is a key concept in understanding acid strength and reactivity in acid-base chemistry.

Ionic Compound Formation

This concept involves writing formulas for compounds by correctly balancing the charges of the cations and anions so that the overall charge is neutral. It requires understanding the valencies of the ions involved, which is fundamentally important when predicting the formula of any ionic compound.

Solubility Rules

Solubility rules are guidelines that help determine whether an ionic compound will dissolve in water. For instance, compounds containing common anions like bromide and nitrate are generally soluble, while many hydroxides and carbonates tend to be insoluble, except for certain cations such as those from the alkali metals or ammonium ion.

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