What mass of sodium hydroxide must be added to 40.0 mL of 0.607 M acetic acid in order to create a buffer with a pH of 4.66? K_a for acetic acid is 1.8 $\times$ 10^-5. A) 33 g B) 0.44 g C) 1.0 g D) 0.000035 g E) 0.97 g

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To create a buffer with a pH of 4.66 using acetic acid and sodium hydroxide, we use the Henderson-Hasselbalch equation. Calculate the ratio of acetate to acetic acid needed, then determine the moles of sodium hydroxide required to achieve this ratio. Convert moles to grams to find the mass needed.

What Mass of Sodium Hydroxide Must Be Added to 40 ×\times×

What Mass of Sodium Hydroxide Must Be Added to 40 $\times$