1. a mixture of naoh and na2co3 solution required 20.50 ml of 0.5 m hcl using
phenolphthalein as indicator. the same amount of alkali mixture when titrated using
methyl orange as an indicator required 27.25 ml of same acid. obtain an expression
for the volumes of acid required to neutralize (i) koh and (ii) na2co3 present in
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?

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoft en gain electrons easilygood conductorpoor conductorcan be liquidselements

How many formula units in 2.63 mols of nacl?