Electrochemical cells - investigate the effect of the temperature change of the anode electrolyte has on the average voltage produced by a voltaic cell with 50ml of 0.5M Zinc sulphate solution and 50ml of 0.5M Magnesium sulphate solution.

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11 IB CHEMISTRY

PRACTICAL DESIGN PROFORMA

NAME;......ESTHER.....................................................

INSTRUCTIONS

A electrochemical cell also called a voltaic cell, it consist of two different half -cells, converting chemical energy into electrical energy using a spontaneous redox reaction as a source of electrical energy. Anode is negative (reduction), and cathode is positive (oxidation). Electron always flows from anode to cathode. There are lots of factors affecting electrochemical cells, this experiment will find out one of the factor affecting the average voltage of electrochemical cells.

Aim:

To investigate the effect of the temperature change of the anode electrolyte has on the average voltage produced by a voltaic cell with 50ml of 0.5M Zinc sulphate solution and 50ml of 0.5M Magnesium sulphate solution.

Hypothesis:

As increase the temperature of anode electrolytes, its average voltage will also increase.

DESIGN

RESEARCH QUESTION:

(Is your research question focussed? Does it give precise information like the names of reactants and/or conditions?)

How can the temperatures of the anode electrolyte affect the average voltage of electrochemical cells?

INDEPENDENT VARIABLE:

...Temperature of the anode electrolyte ..........................................................................................................................

DEPENDENT VARIABLE: