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A cell has a 7.0-nm-thick membrane with a total membrane area of 6.0\times10^{-9}\;{\rm m^2}

Part A Q: We can model the cell as a capacitor, as we have seen. What is the magnitude of the charge on each "plate" when the membrane is at its resting potential of -70 {\rm mV}? A: Q= _C

Part B Q: How many sodium ions does this charge correspond to? A: N= _sodium ions

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