How to determine molecular geometry from lewis structure

What is the amount of energy for a photon that has a 125 cm wavelength

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?

Ajar is tightly sealed at 22°c and 772 torr what is the pressure inside a jar after its been heated to 178°c