Agaseous mixture contains 410.0 torr h2(g), 370.7 torr n2(g), and 67.7 torr ar(g). calculate the mole fraction, χ, of each of these gases.

Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg