A sample of H2 gas is kept in an 800.0 mL container at 33.0 oC and exerts a pressure of 1255 torr. At what temperature will this same sample of gas exert a pressure of 0.900 atm in a 2.00L container.

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false