At 37 °c the concentration of fe3+ inside a cell is 0.092 m and outside is 0.012 m. the cell membrane is permeable to fe3+. what potential difference in volts would have to exist across the membrane for fe3+ to be in equilibrium at the stated conditions? give you answer as the absolute value of the potential difference in volts.

May someone me with these science questions

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.