What is the pH of a 500 mL solution containing 25 mL of 0.50 M HCO3- and 18 g of potassium carbonate (MW = 138.21 g/mol)? Carbonic acid has pKa values of 6.37 and 10.32.
Added by Roberta A.
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Given: - Mass of potassium carbonate = 18 g - Molar mass of potassium carbonate = 138.21 g/mol Number of moles of potassium carbonate = Mass / Molar mass Number of moles of potassium carbonate = 18 g / 138.21 g/mol Number of moles of potassium carbonate = 0.1302 Show more…
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