front 1 What acts as the cathode (negative end) in this experiment
| back 1 The copper wire |
front 2 What property of the metal is measured in this experiment?
| back 2 Loss of mass of the metal |
front 3 The purpose of this experiment is to
| back 3 find the molar mass of a metal using moles of hydrogen produced when the metal is oxidized. |
front 4 The H+ in this experiment is
| back 4 reduced to H2 gas. |
front 5 The barometric pressure of a room at 26 degrees C is found to be 752.0 mm Hg. The vapor pressure of water at this temperature is 25.2 mm Hg. What is the partial pressure of H2 in a buret in this room during a similar experiment to this one?
| back 5 726.8 mm Hg |
front 6 How many moles of H2 gas are present if the partial pressure of H2 gas is 0.956 atm, its volume is 0.09500 L, and the temperature is 299 K. (Use R = 0.08206 L atm/K/mol). HINT : Use PV = nRT
| back 6 0.00370 moles |