Find the pH of 200.0 mL buffer from exercise 1 after the addition of 100.0 mL of

Question

Find the pH of 200.0 mL buffer from exercise 1 after the addition of 100.0 mL of 0.020M NaOH. 1, Find the pH of 1.00 L of buffer solution containing of 1.2M sodium acetate and 0 9M acetic acid. The K, of acetic acid is 1.8 x 105. ka:4.74 ft: 4.74 + log (ba)/[.4) 4740125 ph: 4.8 2 Find the pH of 200.0 mL of the buffer from exercise 1 after the addition of O.030 mol of gaseous hydrochloric acid. Assume no volume change. pH : 4.74 3, Find the pH of 200.0 mL buffer from exercise 1 after the addition of 100.0 mL of 0.020M NaOH. 220

Explanation / Answer

pH = pKa + log ([base]/[acid])

pH = 4.74 + log (0.20/0.9)

pH = 4.74 + log (0.2222)

pH = 4.74 + (-0.6532)

pH = 4.086

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