A gas filled balloon having a volume of 2.50 L at 1.21 atm and 25oC is allowed to rise to the stratosphere (~30km above the surface of the Earth), where the temperature and pressure are -23oC and 3.00 x 10-3 atm, respectively. Calculate the final volume of the balloon.

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.