Wednesday, March 6, 2019
Chemistry â⬠Factors Affecting Electrochemical Cells Essay
How do the changeable electrodes of different reactivity affect the aptitude in Volts measured by a Voltmeter while the Solution and the brininess Bridge stay constant for every single trial by the same amount in each beaker?Background TheoryThe conductance of an electrolyte depends upon the quash of ions present in the solution. Therefore, the greater the number of ions in the solution the greater is the conductance. The number of ions produced by an electrolyte depends upon its nature. The strong electrolytes dissociate almost completely into ions in solutions and, therefore, their solutions have high conductance. On the other hand, weak electrolytes dissociate to solo small extents and give lesser number of ions. Therefore, the solutions of weak electrolytes have humble conductance. Electrolyte is any substance containing free ions that makes the substance electrically conductive. Ionic Solutions atomic number 18 the most common, but molten electrolytes and solid electrolyt es are also possible. guessingAs the Electrodes in the constant Sodiumsulfate solution varies after each trial, the electrolyte with the highest divergence of reactivity should result the highest Voltage. The understanding behind this theory is the following. The used electrodes are in a specific order of reactivity. Therefore the element on top of the list (potassium) should react most and the element on butt joint (copper) least. If both are used together in an electrochemical cell, this should much reactive than other elements (electrodes, such as zinc, calcium, aluminium and). With a higher(prenominal) reactivity rate, the voltage also increases because of the number of ions released which related to a greater conductance.Apparatus2 Beakers (50ml)Salt bridge (0.1 concentration)(KNO3)Solution (MgSO4)Voltmeter
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment