Amole of sulfur and a mole of aluminum will have the same

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

What’s the percent by mass of carbon in c10h14n2

In which phase(s) do the molecules take the shape of the container?