PLEASE NO LINKS - I will report you Need help please:

Dalton’s Law PT = P1 + P2 + P3
Jenny has three containers which each has a volume of 2 liters. The first container has a pressure of 1.2 atms, the second container has a pressure of 1.7 atms, and the third container has an unknown pressure. She puts the three gases into a two-liter container and records the total pressure to be 3.5 atms. What was the pressure of the third container?

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?