Ask Question
22 March, 03:40

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. 22 March, 05:41
    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?
Get 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 there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers