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You need a carbonate buffer of pH 10.00 in a study you are performing. How many grams of Na2CO (MW 105.99) do you need to add to 0.750 L of freshly prepared 0.250 M NaHCO, (Ka 4.70 x 10-11) bufffer? a. 0.250 b. none of the above c. 0.221 4.70 x 10.11) buffer? d. 23.5 e. 0.00209
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C) 0.221

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