What is the concentration of sodium ions in 0.185 M Na2CO3?​

0.370 M

Explanation:

Step 1: Given data

Molar concentration of the sodium carbonate solution: 0.185 M

Step 2: Write the balanced dissociation equation

Sodium carbonate is a strong electrolyte that dissociates according to the following equation.

Na₂CO₃(aq) ⇒ 2 Na⁺(aq) + CO₃²⁻(aq)

Step 3: Calculate the molar concentration of sodium ions

The molar ratio of Na₂CO₃ to Na⁺ is 1:2.

0.185 mol Na₂CO₃/L × 2 mol Na⁺/1 mol Na₂CO₃ = 0.370 mol Na⁺/L

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