Chemistry Please find: a) BC before dilution b) BC after dilution 31 Discussion Data Sheet pH of

Chemistry

Please find:

a) BC before dilution

b) BC after dilution

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31 Discussion Data Sheet pH of Pure Water 7.00 pH of Water + NaOH 11.58 WA Mass 0.2015 WA pH 3.35 WA + Water pH 3.42 WA+ NaOH pH 4.35 Conj Base Mass 0.2005 Conj Base pH 8.85 CB+ Water pH 8.79 CB + NaOH pH 11.44 Mass of WA for Buffer Solution 0.2020 Mass of CB for Buffer Solution 0.1967 Buffer pH 5.17 Buffer + Water pH 5.17 Buffer + NaOH pH 5.27 ApH after Adding NaOH to Water 4.58 X ApH after Adding NaOH to Diluted WA 0.93 ApH after Adding NaOH to Diluted CB 2.65 ApH after Adding NaOH to Diluted Buffer 0.1 Using eq. 7: BC = 2.3 1 1 + WA T CB calculate the buffer capacity (BC) of your buffer solution before and after dilution with water, and enter the values obtained below. Remember that before dilution the water volume in the flask was 25 mL. After dilution, the volume was 35 mL. The number of moles of weak acid and conjugate base will depend on the amounts added to the flask. Your weak acid's molar mass is 234 and that of the conjugate base is 256. 31 Discussion Data Sheet pH of Pure Water 7.00 pH of Water + NaOH 11.58 WA Mass 0.2015 WA pH 3.35 WA + Water pH 3.42 WA+ NaOH pH 4.35 Conj Base Mass 0.2005 Conj Base pH 8.85 CB+ Water pH 8.79 CB + NaOH pH 11.44 Mass of WA for Buffer Solution 0.2020 Mass of CB for Buffer Solution 0.1967 Buffer pH 5.17 Buffer + Water pH 5.17 Buffer + NaOH pH 5.27 ApH after Adding NaOH to Water 4.58 X ApH after Adding NaOH to Diluted WA 0.93 ApH after Adding NaOH to Diluted CB 2.65 ApH after Adding NaOH to Diluted Buffer 0.1 Using eq. 7: BC = 2.3 1 1 + WA T CB calculate the buffer capacity (BC) of your buffer solution before and after dilution with water, and enter the values obtained below. Remember that before dilution the water volume in the flask was 25 mL. After dilution, the volume was 35 mL. The number of moles of weak acid and conjugate base will depend on the amounts added to the flask. Your weak acid's molar mass is 234 and that of the conjugate base is 256.