Chambers A and B are separated by a membrane. Chamber A receives 13.2 mM KCl and Chamber B receives 6.7 mM KOH. The membrane is permeable to K+, and K+ comes into equilibrium. If K+ is in equilibrium across the membrane, what is the membrane potential for this experimental situation (absolute value, mV)?

Which side is electrically positive?

a. The absolute value of the membrane potential is 18 mV and chamber A is electrically positive

b. The absolute value of the membrane potential is 18 mV and chamber B is electrically positive

c. The absolute value of the membrane potential is 50 mV and chamber A is electrically positive

d. The absolute value of the membrane potential is 50 mV and chamber B is electrically positive