Quinine, an alkaloid derived from a tree that grows in tropical rain forests, is used in the treatment of malaria. Like all alkaloids, quinine is a sparingly soluble weak base: 1.00 g of quinine will dissolve in 1.90 × 102 L of water. What is the pH of a saturated solution of quinine? The number of significant digits is set to 2; the tolerance is +/-4%

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