Indicate whether each statement is true or false: (c) A salt bridge or permeable barrier is necessary to allow a voltaic cell to operate.

Video transcript

Welcome back everyone. We have a true or false example. The statement reads that a voltaic cell can operate without a salt bridge or permeable barrier. So what we want to recall is our diagram of our voltaic cell where we have two electrolyte solution. So let's draw our first solution here and our second solution here. Our first solution is going to have our cathode electrode. We'll use the shorthand cat, Our 2nd electrolyte solution will contain our and out electrode. Let's make this need er this says a note here. So we have wire connecting these two electrodes to one another. So let's get rid of this line here. These are our electrolyte solutions and we should recall that the flow of electrons is from our an ode to our cathode. So this is our electron flow. Now in order to have a complete electrical circuit and balanced charge between our cathodes and anodes, we're going to have to have an ion flow between our two solutions. And so this is why we must have a salt bridge present as a permeable barrier for these ions to travel through. So this would be our salt bridge connecting our two solutions. So when we are given the statement that a voltaic cell can operate without a salt bridge or permeable barrier, we would say that this is going to be false. We would correct this to say that it cannot operate without a salt bridge or permeable barrier. So this statement is false. As our final answer. I hope everything I reviewed was clear if you have any questions, please leave them down below and I will see everyone in the next practice video.