(Answered) 1calculate the ph of a solutions formed by mixing 500ml of

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1.Calculate the pH of a solutions formed by mixing 50.0ml of 0.250M NaHCO_{3, with 1500 ml of 0.1M NaNa2CO3. What is the molarity of the prepared buffer.}

2. 150g of lactic acid (MW= 90.08g/mole) and 0.25 Sodium lactate(MW=112.07g/mole) are dissolve in water. The final volume of the solution is 250ml. calculate the pH and molarity of this buffer.

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