This document consists of 8 printed pages.
SP (CW) S53305/1
© UCLES 2003
CAMBRIDGE INTERNATIONAL EXAMINATIONS
Joint Examination for the School Certificate
and General Certificate of Education Ordinary Level
Paper 3 Practical Test
1 hour 30 minutes
Candidates answer on the Question Paper.
Additional Materials: as listed in Instructions to Supervisors
READ THESE INSTRUCTIONS FIRST
Write your name, Centre number and candidate number in the spaces at the top of this page.
Answer both questions.
Write your answers in the spaces provided on the question paper.
You should show the essential steps in any calculation and record all experimental results in the spaces
provided on the question paper.
If you are using semi-micro methods in Question 2, you should modify the instructions to suit the size of
apparatus and the techniques you are using.
The number of marks is given in brackets [ ] at the end of each question or part question.
Qualitative Analysis notes are printed on page 8.
For Examiner’s Use
If you have been given a label, look at the
details. If any details are incorrect or
missing, please fill in your correct details
in the space given at the top of this page.
Stick your personal label here, if
You are provided with a solid T and a solution S. S was prepared by adding T to 1.00 dm3 of
0.500 mol/dm3 hydrochloric acid. You are to identify T and determine the mass of T which
had been added to the hydrochloric acid.
Identification of solid T
Carry out the following tests on solid T and record your observations in the table. You should
test and name any gas evolved.
Put your sample of T into a boiling tube
and slowly add dilute hydrochloric acid,
until the boiling tube is about one third
When the reaction has finished, allow any
solid to settle and pour the solution into a
clean test-tube. Use this solution for Test
2 and Test 3.