As a result of an experiment following measurements were obtained from a cell:
• intracellular Na⁺ concentration of 10 mM,
• intracellular K⁺ concentration of 140 mM,
• intracellular Cl⁻ concentration of 5 mM,
• intracellular Ca²⁺ concentration of 0.0001 mM,
• extracellular Na⁺ concentration of 150 mM,
• extracellular K⁺ concentration of 5 mM,
• extracellular Cl⁻ concentration of 120 mM,
• extracellular Ca²⁺concentration of 5 mM.
Using these values calculate equilibrium potential for Ca²⁺ ion in these cells. (RT/F = 26.7 mV, 37°C)