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7. The pH of four different solutions (K, L, M and N ) are given as shown in the table below. Answer questions a -

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7. The pH of four different solutions (K, L, M and N ) are given as shown in the table below. Answer questions a - d. a) Suggest a device that can be used to measure the pH of the solutions above. b) Which solution has the lowest concentration of hydroxide ions? c) Which solution is neutral? d) Arrange the solutions above from the least basic to the most basic

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