The vapor pressure of liquid iodomethane, CH3I, is 100 mm Hg at 266 K. A 0.280 g sample of liquid CH3I is placed in a closed, evacuated 490. mL container at a temperature of 266 K. Required:
Calculate what the ideal gas pressure would be in the container if all of the liquid iodomethane evaporated.

Can someone me with questions 15 to 17 plz.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.