How many molecules of phosphine (PH3) are formed when 2.98 moles of hydrogen reacts with phosphorus?
P4 + 6H2 > 4PH3
1.2 x 1024 molecules
16.9 molecules
190 molecules
1.8 x 1024 molecules

Two things that biomedical has invented or innvated

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

Adilute aqueous potassium nitrate solution is