A 2.75L flask contains a mixture of nitrogen, hydogen, and ammonia. the total internal pressure within the flask is 210 kPa at -31c. the partial pressure of the nitrogen is 48kPa and the partial pressure of the ammonia is 112kPa. calculate the mass (in g) of hydrogen that is in the tank.

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.