Table of Contents
What is the pH of the solution where the cathode is immersed?
Therefore, the pH of the solution where the cathode is immersed would be 4.88.
What occurs at the anode and cathode of a battery?
The Anode is the negative or reducing electrode that releases electrons to the external circuit and oxidizes during and electrochemical reaction. The Cathode is the positive or oxidizing electrode that acquires electrons from the external circuit and is reduced during the electrochemical reaction.
How do you determine the anode and cathode?
The anode is the electrode where electricity moves into. The cathode is the electrode where electricity is given out or flows out of. The anode is usually the positive side. A cathode is a negative side.
How do you find the pH of an unknown solution?
Take the concentration of H+ (in moles per liter) and plug it into the following pH formula: pH=-log(H+). Determine the negative log of the H+ concentration using your calculator. You will arrive at the pH value of the unknown solution.
What is the pH of the solution at the hydrogen electrode?
-1
We already know that the standard electrode potential of a hydrogen electrode is equal to zero. In the given question, the electrode potential of hydrogen is equal to \[0.059V\]. Thus, the pH at which the potential of hydrogen electrode will be \[0.059V\] is -1.
What is the pH in the cathode compartment?
pH of the cathodic compartment will be 0.028.
What is the equation to find pH?
To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = – log [H3O+].
How do you remember the anode and cathode?
In chemistry, a cathode is the electrode of an electrochemical cell at which reduction occurs; a useful mnemonic to remember this is AnOx RedCat (Oxidation at the Anode = Reduction at the Cathode). Another mnemonic is to note the cathode has a ‘c’, as does ‘reduction’. Hence, reduction at the cathode.
How do you identify the anode and cathode in the electrochemical series?
If one element A is above B in the standard electrode potential series, then the one with greater oxidising power or reducing agent(ie,B) is anode. While the one with greater reducing power or oxidising agent (ie, A) is cathode.