Question

Write the empirical formula for at least four ionic compounds formed by the ions Fe²⁺, Pb⁴⁺, ClO₃⁻, CO₃²⁻.

a. FeCl₂, PbCl₄, ClO₃⁻, CO₃²⁻
b. Fe₂Cl₄, PbCl₄, ClO₃⁻, CO₃²⁻
c. FeCl₂, PbCO₃, ClO₃⁻, CO₃²⁻
d. Fe₂Cl₄, PbCO₃, ClO₃⁻, CO₃²⁻

Answer 1

The empirical formulas for the specified ionic compounds are FeCl₂, PbCO₃, ClO₃⁻, CO₃²⁻ by balancing the cations and anions to achieve neutral compounds.

Step-by-step explanation:

The empirical formulas for ionic compounds formed by the ions Fe²⁺, Pb⁴⁺, ClO₃⁻, CO₃²⁻ can be determined by balancing the charges of the cations (positive ions) and anions (negative ions) to ensure that the overall charge of the compound is zero. Here are four empirical formulas:

• The compound formed by Fe²⁺ and ClO₃⁻ is Fe(ClO₃)₂.
• The compound formed by Fe²⁺ and CO₃²⁻ is FeCO₃.
• The compound formed by Pb⁴⁺ and ClO₃⁻ is Pb(ClO₃)₄.
• The compound formed by Pb⁴⁺ and CO₃²⁻ is PbCO₄ (which actually doesn't exist under normal conditions, as lead typically forms PbCO₃; for educational purposes, though, we can theoretically combine the ions as Pb⁴⁺ and CO₃²⁻).

Therefore, the correct answer that lists the empirical formulas for the specified ionic compounds is c. FeCl₂, PbCO₃, ClO₃⁻, CO₃²⁻.