just need some help calculating equilibrium potential, im assuming Z is the membrane potential but i am not to sure

TABLE 4.1 molar Concentrations of selected Solutes in Intrud ICF and Extraceluid (ECF 1000 Human Physiology Assignment 3 Nernst Equation Practice Questions Due: Sunday, January 30 by 11:59 p.m. 10 Points 40 $450 15 18 001 30 100 115.0 61 mV log III. LU DO P Acids 2.0 20 z 10 10 60 Use the ion concentrations from Table 4.1to complete the calculations. ATP Pro 02 1. Calculate the equilibrium potential for Nat. If the membrane potential is 0 mV, what direction would Na* move? julware Fiz 6lmu ( las [145m [Iar 2. Calculate the equilibrium potential for Ch. If the membrane potential is -70 mV, what direction would C move? - 127 Eia HG Gimo - 70 mo 3. Calculate the equilibrium potential for HCO3. If the membrane potential is -40 mV, what direction would HCO3 move? 4. Calculate the equilibrium potential for Ca". Use a Cat concentration of 0.001 mM. If the membrane potential is +50 mV, what direction would Ca* move? 5. Calculate the equilibrium potential for K'. If the membrane potential is -94 mV, what direction would K* move? TABLE 4.1 molar Concentrations of selected Solutes in Intrud ICF and Extraceluid (ECF 1000 Human Physiology Assignment 3 Nernst Equation Practice Questions Due: Sunday, January 30 by 11:59 p.m. 10 Points 40 $450 15 18 001 30 100 115.0 61 mV log III. LU DO P Acids 2.0 20 z 10 10 60 Use the ion concentrations from Table 4.1to complete the calculations. ATP Pro 02 1. Calculate the equilibrium potential for Nat. If the membrane potential is 0 mV, what direction would Na* move? julware Fiz 6lmu ( las [145m [Iar 2. Calculate the equilibrium potential for Ch. If the membrane potential is -70 mV, what direction would C move? - 127 Eia HG Gimo - 70 mo 3. Calculate the equilibrium potential for HCO3. If the membrane potential is -40 mV, what direction would HCO3 move? 4. Calculate the equilibrium potential for Ca". Use a Cat concentration of 0.001 mM. If the membrane potential is +50 mV, what direction would Ca* move? 5. Calculate the equilibrium potential for K'. If the membrane potential is -94 mV, what direction would K* move