Question

Write formulas for two salts that (a) contain \(\mathrm{Ni}^{3+}\) and are acidic. (b) contain \(\mathrm{Na}^{+}\) and are basic. (c) contain \(\mathrm{ClO}_{4}^{-}\) and are neutral. (d) contain \(\mathrm{NH}_{4}^{+}\) and are acidic.

Short answer

Question: Provide one example of an acidic salt that contains Ni(III) and one example of a basic salt that contains Na(I). Answer: One example of an acidic salt containing Ni(III) is Nickel Hydrogen Sulfate (\(\mathrm{Ni}(\mathrm{HSO}_{4})_{3}\)), and one example of a basic salt containing Na(I) is Sodium Acetate (\(\mathrm{NaCH}_{3}\mathrm{COO}\)).

Step-by-step solution

(a) Ni(III) Salts that are Acidic

: For this case, we need to find two suitable anions that will make the salts acidic when combined with \(\mathrm{Ni}^{3+}\). Acidic salts are formed when the cation hydrolyzes more extensively than the anion. Considering oxyanions, two examples would be \(\mathrm{HSO}_{4}^{-}\) and \(\mathrm{H}_{2}\mathrm{PO}_{4}^{-}\). The salts are: 1. \(\mathrm{Ni}(\mathrm{HSO}_{4})_{3}\) - Nickel Hydrogen Sulfate 2. \(\mathrm{Ni(H}_{2}\mathrm{PO}_{4})_{3}\) - Nickel Dihydrogen Phosphate

(b) Na(I) Salts that are Basic

: For this case, we need to find two suitable anions that will make the salts basic when combined with \(\mathrm{Na}^{+}\). Basic salts are formed when the anion hydrolyzes more extensively than the cation. Considering anions derived from weak acids, two examples would be \(\mathrm{CH}_{3}\mathrm{COO}^{-}\) and \(\mathrm{F}^{-}\). The salts are: 1. \(\mathrm{NaCH}_{3}\mathrm{COO}\) - Sodium Acetate 2. \(\mathrm{NaF}\) - Sodium Fluoride

(c) Salts containing \(\mathrm{ClO}_{4}^-\) and are Neutral

: For this case, we need to find two suitable cations that will make the salts neutral when combined with \(\mathrm{ClO}_{4}^{-}\). Neutral salts are formed when neither the cation nor the anion hydrolyzes appreciably. Considering cations derived from strong bases, two examples would be \(\mathrm{K}^{+}\) and \(\mathrm{Mg}^{2+}\). The salts are: 1. \(\mathrm{KClO}_{4}\) - Potassium Perchlorate 2. \(\mathrm{Mg(ClO}_{4})_{2}\) - Magnesium Perchlorate

(d) Salts containing \(\mathrm{NH}_{4}^+\) and are Acidic

: For this case, we need to find two suitable anions that will make the salts acidic when combined with \(\mathrm{NH}_{4}^{+}\). Acidic salts are formed when the cation hydrolyzes more extensively than the anion. Considering oxyanions, two examples would be \(\mathrm{HSO}_{4}^{-}\) and \(\mathrm{H}_{2}\mathrm{PO}_{4}^{-}\). The salts are: 1. \(\mathrm{NH}_{4}\mathrm{HSO}_{4}\) - Ammonium Hydrogen Sulfate 2. \(\mathrm{NH}_{4}\mathrm{H}_{2}\mathrm{PO}_{4}\) - Ammonium Dihydrogen Phosphate