The Analysis Label on a 500 ML Bottle of Fiji

question 23

Multiple Choice

The analysis label on a 500 mL bottle of Fiji Natural Artesian Water reports pH = 7.5 and 140 mg of bicarbonates, HCO₃^-. Calculate the pH expected as a result of the bicarbonates to see if these two numbers are consistent with each other. (K_b = 2.4  10^-8 for HCO₃^-)

• A) 7.5
• B) 5.0
• C) 9.6
• D) 4.4
• E) 9.0

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