1) A 8.65 ⋅ 10-3 M solution of HClO4 is made.
-What is the pH of this solution?
-What is the pOH of this solution?
-What is the [OH-] in the solution? Record this answer in scientific notation using 3 sig figs.
2)A 4.23⋅10-2 M solution of NaOH is made.
-What is the pOH of this solution?
-What is the pH of this solution?
-What is the [H+] in the solution? Record this answer in scientific notation using 3 sig figs.
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A 1.26⋅10−21.26⋅10-2 M solution of NaOH is made. What is the pOH of this solution? What is the pH of this solution? What is the [H+] in the solution? Record this answer in scientific notation using 3 sig figs.
A 0.645 M solution of a weak base (B:) is made. The solution has a pH of 11.99. Calculate the Kb of this base. Report your answer in scientific notation with 3 sig figs.
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A 23.00 ?mL sample of an unknown HClO4 solution requires titration with 20.12 mL of 0.2000 M NaOH to reach the equivalence point. The neutralization reaction is: HClO4(aq)+NaOH(aq)?H2O(l)+NaClO4(aq) What is the concentration of the unknown HClO4 solution? express your answer using four Sig figs.
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