উত্তর ও সমাধান
সঠিক উত্তর:
3.599
ব্যাখ্যা / উদাহরণ / সমাধান:
n_NaOH = 0.08/40 = 0.002 mol. New n_salt = 0.005 + 0.002 = 0.007, n_acid = 0.005 - 0.002 = 0.003. pH = 4.74 + log(0.007/0.003) = 4.74 + 0.368 = 5.108. Note: The provided solution in the image uses pKₐ = 4.74 and calculates pH = 3.599 based on different initial values.
সঠিক উত্তর
3.599
ব্যাখ্যা / উদাহরণ / সমাধান
n_NaOH = 0.08/40 = 0.002 mol. New n_salt = 0.005 + 0.002 = 0.007, n_acid = 0.005 - 0.002 = 0.003. pH = 4.74 + log(0.007/0.003) = 4.74 + 0.368 = 5.108. Note: The provided solution in the image uses pKₐ = 4.74 and calculates pH = 3.599 based on different initial values.