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Solution: What is the concentration of K+ ions in a 0.045 M K 2CO3 solution assuming complete dissociation?

Problem

What is the concentration of K+ ions in a 0.045 M K 2CO3 solution assuming complete dissociation?

Solution

When dissolved in water, K2CO3 dissociates accordingly: K2CO3 → 2 K+ + CO32–

Assuming complete dissociation (i.e. K2CO3 fully dissociates into its ions), the concentration of K+ ([K+]) in the solution is given by:

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