Questions: Fill in the name and empirical formula of each ionic compound that could be formed from - cation: Zn^2+, anion: NO2^-, empirical formula: , name of compound: - cation: Cu^2+, anion: ClO^-, empirical formula: , name of compound: - cation: Pb^2+, anion: SO3^2-, empirical formula: , name of compound: - cation: Ba^2+, anion: IO2^-, empirical formula: , name of compound:

Fill in the name and empirical formula of each ionic compound that could be formed from

- cation: Zn^2+, anion: NO2^-, empirical formula: , name of compound: 
- cation: Cu^2+, anion: ClO^-, empirical formula: , name of compound: 
- cation: Pb^2+, anion: SO3^2-, empirical formula: , name of compound: 
- cation: Ba^2+, anion: IO2^-, empirical formula: , name of compound:
Transcript text: Fill in the name and empirical formula of each ionic compound that could be formed from \begin{tabular}{|c|c|c|c|} \hline \multicolumn{4}{|c|}{ some ionic compounds } \\ \hline cation & anion & empirical formula & name of compound \\ \hline $\mathrm{Zn}^{2+}$ & $\mathrm{NO}_{2}^{-}$ & $\square$ & $\square$ \\ \hline $\mathrm{Cu}^{2+}$ & $\mathrm{ClO}^{-}$ & $\square$ & $\square$ \\ \hline $\mathrm{Pb}^{2+}$ & $\mathrm{SO}_{3}^{2-}$ & $\square$ & $\square$ \\ \hline $\mathrm{Ba}^{2+}$ & $\mathrm{IO}_{2}^{-}$ & $\square$ & $\square$ \\ \hline \end{tabular}
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Solution

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Solution Steps

Step 1: Identify the cation and anion for each compound

We are given pairs of cations and anions. We need to combine them to form neutral ionic compounds.

Step 2: Determine the empirical formula

To form a neutral compound, the total positive charge must equal the total negative charge. We will balance the charges for each pair.

  1. For \(\mathrm{Zn}^{2+}\) and \(\mathrm{NO}_{2}^{-}\):

    • \(\mathrm{Zn}^{2+}\) has a charge of +2.
    • \(\mathrm{NO}_{2}^{-}\) has a charge of -1.
    • We need two \(\mathrm{NO}_{2}^{-}\) ions to balance one \(\mathrm{Zn}^{2+}\) ion.
    • Empirical formula: \(\mathrm{Zn}(\mathrm{NO}_{2})_{2}\)
  2. For \(\mathrm{Cu}^{2+}\) and \(\mathrm{ClO}^{-}\):

    • \(\mathrm{Cu}^{2+}\) has a charge of +2.
    • \(\mathrm{ClO}^{-}\) has a charge of -1.
    • We need two \(\mathrm{ClO}^{-}\) ions to balance one \(\mathrm{Cu}^{2+}\) ion.
    • Empirical formula: \(\mathrm{Cu}(\mathrm{ClO})_{2}\)
  3. For \(\mathrm{Pb}^{2+}\) and \(\mathrm{SO}_{3}^{2-}\):

    • \(\mathrm{Pb}^{2+}\) has a charge of +2.
    • \(\mathrm{SO}_{3}^{2-}\) has a charge of -2.
    • One \(\mathrm{Pb}^{2+}\) ion balances one \(\mathrm{SO}_{3}^{2-}\) ion.
    • Empirical formula: \(\mathrm{PbSO}_{3}\)
  4. For \(\mathrm{Ba}^{2+}\) and \(\mathrm{IO}_{2}^{-}\):

    • \(\mathrm{Ba}^{2+}\) has a charge of +2.
    • \(\mathrm{IO}_{2}^{-}\) has a charge of -1.
    • We need two \(\mathrm{IO}_{2}^{-}\) ions to balance one \(\mathrm{Ba}^{2+}\) ion.
    • Empirical formula: \(\mathrm{Ba}(\mathrm{IO}_{2})_{2}\)
Step 3: Name the compounds

We will use standard naming conventions for ionic compounds.

  1. \(\mathrm{Zn}(\mathrm{NO}_{2})_{2}\):

    • Name: Zinc nitrite
  2. \(\mathrm{Cu}(\mathrm{ClO})_{2}\):

    • Name: Copper(I) hypochlorite
  3. \(\mathrm{PbSO}_{3}\):

    • Name: Lead(II) sulfite
  4. \(\mathrm{Ba}(\mathrm{IO}_{2})_{2}\):

    • Name: Barium iodite

Final Answer

\[ \begin{array}{|c|c|c|c|} \hline \text{cation} & \text{anion} & \text{empirical formula} & \text{name of compound} \\ \hline \mathrm{Zn}^{2+} & \mathrm{NO}_{2}^{-} & \boxed{\mathrm{Zn}(\mathrm{NO}_{2})_{2}} & \boxed{\text{Zinc nitrite}} \\ \hline \mathrm{Cu}^{2+} & \mathrm{ClO}^{-} & \boxed{\mathrm{Cu}(\mathrm{ClO})_{2}} & \boxed{\text{Copper(I) hypochlorite}} \\ \hline \mathrm{Pb}^{2+} & \mathrm{SO}_{3}^{2-} & \boxed{\mathrm{PbSO}_{3}} & \boxed{\text{Lead(II) sulfite}} \\ \hline \mathrm{Ba}^{2+} & \mathrm{IO}_{2}^{-} & \boxed{\mathrm{Ba}(\mathrm{IO}_{2})_{2}} & \boxed{\text{Barium iodite}} \\ \hline \end{array} \]

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