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which will have the highest concentration of potassium ions: 0.20M KCL, 0.15M K2CO3, or 0.08M K3PO4?
1 Answer
- anonymousLv 74 years ago
0.15M K₂CO₃ has the highest concentration of K⁺ ions.
concentration of K⁺ ions in 0.15M K₂CO₃ :
(0.15 moles K₂CO₃ / 1 L) x (2 moles K⁺ ions / 1 mole K₂CO₃)
= 0.30 moles K⁺ ions / L
= 0.30 M
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concentration of K⁺ ions in 0.20M KCl :
(0.20 moles KCl / 1 L) x (1 moles K⁺ ions / 1 mole KCl)
= 0.20 moles K⁺ ions / L
= 0.20 M
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concentration of K⁺ ions in 0.08M K₃PO₄ :
(0.08 moles K₃PO₄ / 1 L) x (3 moles K⁺ ions / 1 mole K₃PO₄)
= 0.24 moles K⁺ ions / L
= 0.24 M
