(Answered) Consider a buffer solution that contains 035 m nahco3 and

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Consider a buffer solution that contains 0.35 M NaHCO3 and 0.25 M Na2CO3. pKa(HCO3--)=10.33.

a) Calculate its pH.

b) Calculate the change in pH if 0.130 g of solid NaOH is added to 170 mL of this solution.

c) If the is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer. acceptable buffer range of the solution

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