1. What is the final pH of the solution when 30.0 mL of 0.121 mol L−1 NaOH(aq) and 45.0 mL of 0.181 mol L−1 C6H5COOH(aq)

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answerhappygod
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1. What is the final pH of the solution when 30.0 mL of 0.121 mol L−1 NaOH(aq) and 45.0 mL of 0.181 mol L−1 C6H5COOH(aq)

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1. What is the final pH of the solution when 30.0 mL of 0.121mol L−1 NaOH(aq) and 45.0 mL of 0.181 molL−1 C6H5COOH(aq) aremixed? Assume the temperature is 25 °C. ForC6H5COOH,pKa = 4.21 at 25 °C.
2. What is the pH of 4.86×10−3 molL−1 HCl(aq) at 25 °C?
Give your answer accurate to 2 decimal places.
pH =
3. What is the pH of 5.44×10−5 molL−1 Ca(OH)2(aq) at 25 °C?
Give your answer accurate to 2 decimal places.
pH =
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