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What is the ph at the equivalence point

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Reference no: EM131409532

1. Circle the acid/base pair that would serve best to prepare a buffer having a pH of 7.00.Cross out that which you would use to make a buffer at pH 3.50. Explain your answer. NaHSO4/Na2SO4 HNO2/NaNO2 HCl/NaOH NaH2PO4/Na2HPO4

2. How many moles of KF should be added to 0.50 L of a 0.10 M HF solution to prepare a buffer with a pH of 2.84?

3. Using the attached table, calculate the standard entropy change for the following reaction at 25°C: Ca(OH)2(s) ---- CaO(s) + H2O(g)

4. 50.0 mL of a 0.100 M CH3COOH solution is titrated with 0.100 M NaOH. What is the pH at the equivalence point?

Reference no: EM131409532

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