How many moles are in 3.2 x 1024 of CO2 molecules? (round answer to the correct number of sig figs)

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

In which reaction is precipitation occurring?

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?