Determine the pH during the titration of 36.2 mL of 0.171M HI by 0.171 M KOH at the following points: (a) Before the addition of any KOH (b) After the addition of 18.1 mL of KOH

30.0 mL of titrant is required to reach the equivalence point in the titration with a strong base o f an aqueous sample of formic acid, what is the pH of the titration mixture after (a) 10.0 mL, (b) 15.0 mL, and (c) 20.0 mL of titrant have been added?

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A 10.0−mL solution of 0.750 M NH3 is titrated with a 0.250 M HCl solution. Calculate the pH after the following additions of the HCl solution: (a) 0.00 mL     (b) 10.0 mL     (c) 30.0 mL     (d) 40.0 mL

A buffer solution is desired to be prepared by mixing 100 mL of 0.6M ammonia solution and 150 mL of 0.3 ammonium chloride solution. What is the pH of the prepared buffer solution?

6. ( ) A 40 mL sample of a 0.2 M RNHz (kb = 3.7 x 10") is titrated with 0.2 M HC (eg). Calculate the pH after the addition of each of the following volume acids. a) Initial pH (b) Volume of HCI (ag): 20 mL (c) Volume of HCI (ag): 39.9 mL (d) Volume of HCI (ag): 40.0 mL (e) Volume of HCI (ag): 40.1 mL

Determine the pH during the titration of 60.6 mL of 0.420 M hydrocyanic acid (Ka = 4.0×10-10) by 0.420 M NaOH at the following points.(a) Before the addition of any NaOH(b) After the addition of 14.0 mL of NaOH(c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 90.9 mL of NaOH

the ph of a saturated solution of a metal hydroxide is 9.68 calcile the POH and the concentrations of hydroxyl ion

Which of the following statement is incorrect regarding buffer solutions: Buffer solutions are prepared from a weak conjugate acid/base pair Buffer solutions resist change in pH upon adding small amounts of a strong acid or a strong base The pH of buffer solutions are independent of dilution till certain limits O Buffer capacity correlates with one pH unit change O Maximum buffer capacity is achieved when pHhoK,

Determine the pH during the titration of 21.9 mL of 0.277 M perchloric acid by 0.206 M sodium hydroxide at the following points: (1) Before the addition of any sodium hydroxide (2) After the addition of 14.8 mL of sodium hydroxide (3) At the equivalence point (4) After adding 35.4 mL of sodium hydroxide