Answered: A potential difference of 75 mV exists… | bartleby

Related questions

Question

A potential difference of 75 mV exists between the inner and outer surfaces of a cell membrane. The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell?

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A spherical conductor with a 0.353 m radius is initially uncharged. How many electrons should be removed from the sphere in order for it to have an electrical potential of 4.30 kV at the surface?
Four uncharged capacitors with equal capacitances are combined in series. The combination is connected to a 7.65 V battery, which charges the capacitors. The charging process involves 0.000193 C of charge moving through the battery. Find the capacitance C of each capacitor. C = F
A 140 pF capacitor is charged to a potential difference of 74 V, and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the measured potential difference across the first capacitor drops to 25 V, what is the capacitance of this second capacitor?
For the system of four capacitors shown in the figure below, find the following. (Use C, = 3.00 uF, C, = 8.00 uF, C, = 1.00 UF, and C = 5.00 pF for the figure.) (a) the total energy stored in the system (b) the energy stored by each capacitor m) m3 m) m)
A system of capacitors is shown below. What is the equivalent capacitance of the system if the individual capacitors are: Express the answer in microFarads. For example, if the answer came out to be 4.98 x 10-7 F, this is the same as 49.8 microFarads. You would then answer with numeric value of 4.98. C1 = 6.6 x 10-6 F C2 = 5.9 x 10-6 F C3 = 3.4 x 10-6 F C4 = 4.4 x 10-6 F C5 = 8.1 x 10-6 F
A spherical conductor with a 0.493 m radius is initially uncharged. How many electrons should be removed from the sphere in order for it to have an electrical potential of 8.10 kV at the surface?
There is a potential difference between the inner and outer surfaces of a cell membrane 7.5 nm thick. It takes +0.6 × 10−20 J of work for a biological pump to eject a positive singly-ionized sodium atom (Na+) from the interior of the cell. Neglecting any work the pump might have to do to overcome any non-electrostatic forces, what is the magnitude of the potential difference between the inner and outer surfaces of the cell?
A spherical conductor has a radius of 14.0 cm and a charge of 52.0 µC. Calculate the electric field and the electric potential at the following distances from the center.
In the figure the battery has a potential difference of V = 10.0 V and the five capacitors each have a capacitance of 9.00 uF. What is the charge on (a) capacitor 1 and (b) capacitor 2? FF (a) Number i (b) Number i Units Units
The capacitance of a parallel-plate capacitor can be increased by: O increasing the charge O decreasing the charge O increasing the plate separation O decreasing the plate separation O decreasing the plate area
A proton with an initial speed of 850,000 m/s is brought to rest by an electric field. ▾ Part A Did the proton move into a region of higher potential or lower potential? O Because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential. O Because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential. O Because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential. Because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential. Submit ✓ Correct Here we learn how to determine the distribution of the electric potential based on the movement of a charged particle. Part B Previous Answers What was the potential difference…
10 of 35 > Under certain circumstances, potassium ions (K*) in a cell will move across the cell membrane from the inside to the outside. The potential inside the cell is -65.5 mV and the potential outside the cell is zero. What is the change in the electrical potential energy of a single potassium ion as it moves across the membrane? change in potential energy: J Does the potential energy of the potassium ions increase, decrease, or remain the same as the ions move from the inside to the outside? O decrease O increase O remain the same

SEE MORE QUESTIONS