A buffer solution was prepared which had a concentration of 0.20 mol dm-3 in ethanoic acid and 0.10 mol dm_3 in sodium ethanoate .If the Ka for ethanoic acid is 1.74x 10-5 mol dm-3, calculate the theoretical hydrogen ion concentration and the PH of the buffer solution​

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?