A sample of O2 is collected over water at 21°C. If the total pressure of the sample is 712 torr, what is the partial pressure of the O2? The vapor pressure of water at 21°C is 18.6 torr.

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Which of the following isotopes has the same number of neutrons as phosphorus-31?

Sort these isotopes by whether they are most likely to undergo fusion or fission. hydrogen-3, uranium-233, plutonium-239, hydrogen-1, helium-3, plutonium-241