Chemical cells and fuel cells (chemistry only)

EasyMedium
123456789101112131415
Question 6
Medium

This question is about chemical cells.

A student investigated the voltage produced by different chemical cells using the apparatus shown below.

An electrochemical cell diagram. A beaker contains silver nitrate solution. In the solution are two electrodes. The left electrode is labeled 'Silver' and the right electrode is labeled 'Electrode Y'. Both electrodes are connected by wires to a voltmeter in a complete circuit.

The student used the following method:

  1. Use zinc as Electrode Y.
  2. Record the cell voltage.
  3. Repeat steps 1 and 2 using different metals as Electrode Y.

Table 1 shows the student's results:

Electrode YVoltage of the cell (V)
zinc1.56
iron1.24
copper0.46
a.

Suggest two variables the student should keep the same to make the investigation valid.

[2]
b.

Write the three metals used for Electrode Y in order of reactivity from most reactive to least reactive, using Table 1.

[1]
c.

Predict the voltage if Silver is used as Electrode Y, and give one reason for your answer.

[2]
d.

Describe how to make a 9 V9\text{ V}9 V battery using 1.5 V1.5\text{ V}1.5 V cells.

[2]

Chemical cells and fuel cells (chemistry only) Questions

  1. GCSE
  2. /Chemistry
  3. /Chemical cells and fuel cells (chemistry only)