Acids & Alkalis Sht_1
1.The following is a report given by SEPA to a fish farmer.
a) Describe how you would use Universal Indicator or pH paper to measure the pH of the water.
b) Give a name of a substance which could be used to neutralise the water.
c) Explain what is meant by neutralisation.
d) What happens to the pH of an acid as it is neutralised?
e) What happens to the pH of an alkali as it is neutralised?
f) What are the two products formed in a neutralisation reaction?
g) Explain why indigestion tablets are taken to relieve indigestion.
h) If you were stung by a wasp what would you use to neutralise it?
2. The table below was copied from Universal Indicator paper (pH paper).
a)Describe how the pH of a solution can be measured using pH paper.
b)What colours does pH paper turn in acids?
c)What range of pH values indicates a solution is acidic?
d)What range of pH values indicates a solution is alkaline?
e)What colour does pH paper turn in neutral solutions?
f)What is the pH of neutral solutions?
g)Name one neutral solution.
