1. 200.0 mL flask containing 1.03 mg and 0.56 mg O2 I have a 15 * C to calculate the partial pressures of oxygen and helium in a flask. which is the total pressure?
2. How fast a neutron must travel to have a wavelength of 12.0pm?
3. At what temperature the molecules of CO2 would have a rms velocity equal to that of H2 molecules at 25 * C?