How many positive ions are there on the outside of membrance

Assignment Help Physics

Reference no: EM13286074

A cell membrane has a surface area of 1.00 x 10-7 m2, a dielectric constant of 5.17 and a thickness of 8.17 nm. The membrane acts like the dielectric in a parallel plate capacitor; a layer of positive ions on the outer surface and a layer of negative ions on the inner surface act as the capacitor plates. The potential difference between the "plates" is 82.8 mV. How much energy is stored in this capacitor? How many positive ions are there on the outside of the membrane? Assume that all the ions are singly charged (charge +e).

Reference no: EM13286074

Questions Cloud

Explain product of the reaction between n-propylacetamid : Predict the major product of the reaction between N-propylacetamide and sodium benzoate upon heating at 140C

What is the rms voltage that must be applied by a ac supply : a circuit with a resistor is connected to a DC supply and a Current of 2A and producing a heat. What is the rms Voltage that must be applied by a AC supply to produce 3 times this heat if all other conditions remain the same

Compute the partial pressure of carbon monoxide in torr : Two gases, oxygen (28.8 grams) and carbon monoxide (19.0 grams), are confined in a container at a pressure of 640.0 torr. Calculate the partial pressure of carbon monoxide in torr.

Compute the velocity of the object : A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object

How many positive ions are there on the outside of membrance : A cell membrane has a surface area of 1.00 x 10-7 m2, a dielectric constant of 5.17 and a thickness of 8.17 nm. How many positive ions are there on the outside of the membrane

Define what is the pressure inside the bottle : If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle

Does xyz take to pay for its purchases : The XYZ Company has annual average purchases of $200,000 and an ending accounts payable balance of $36,000. How long, on average, does XYZ take to pay for its purchases?

Calculate the velocity of the object : A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object when it is halfway to the equilibrium position if the surface is frictionless

Explain what mass of oxygen was produced during the heating : If the mass of the resulting mixture is 82.5 grams, what mass of oxygen was produced during the heating

User Account

All Pages