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19.What quantity of NaOH(s) must be added to 1.00 L of 0.200 M HCl to achieve...

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Chemistry

19.What quantity of NaOH(s) must be added to 1.00 L of 0.200 MHCl to achieve a pH of 12.00? (Assume no volume change.)

20.A 65.5-mL sample of 0.14 M HNO2 (Ka = 4.0 x10–4) is titrated with 0.11 M NaOH. What is the pH after26.8 mL of NaOH has been added?

21.

What volume of 0.0100 M NaOH must be added to 1.00 L of0.0500 M HOCl to achieve a pH of 8.00?

Ka for HOCl is 3.5 x 10–8.

Answer & Explanation Solved by verified expert
4.2 Ratings (580 Votes)
1 moles of HCl 0200 molL 100 L 0200 mol So 0200 moles of NaOH gets us to pH 7 pH 12 means pOH 2 means OH 001 M 100 L of pH 7 solution requires 001 mol of    See Answer
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