Ask Question
2 May, 18:33

A student is given 50.0mL of a solution of Na2CO3 of unknown concentration. To determine the concentration of the solution, the student mixes the solution with excess 1.0MCa (NO3) 2 (aq), causing a precipitate to form. The balanced equation for the reaction is shown below.

Na2CO3 (aq) + Ca (NO3) 2 (aq) →2NaNO3 (aq) + CaCO3 (s)

a) Write the net ionic equation for the reaction that occurs when the solutions of Na2CO3 and Ca (NO3) 2 are mixed.

+2
Answers (1)
  1. 2 May, 22:30
    0
    CO₃²⁻ + Ca²⁺ → CaCO₃ (s)

    Explanation:

    In a net ionic equation there are listed just the ions that are involved in the reaction.

    For the reaction:

    Na₂CO₃ (aq) + Ca (NO₃) ₂ (aq) → 2NaNO₃ (aq) + CaCO₃ (s)

    Ions are:

    2 Na⁺ + CO₃²⁻ + Ca²⁺ + 2 NO₃⁻ → 2 Na⁺ + 2 NO₃⁻ + CaCO₃ (s)

    Thus, ions that react are just CO₃²⁻ and Ca²⁺ and net ionic equation is:

    CO₃²⁻ + Ca²⁺ → CaCO₃ (s)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A student is given 50.0mL of a solution of Na2CO3 of unknown concentration. To determine the concentration of the solution, the student ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers