Post on 09-Mar-2018
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2012 - Higher Select a substance from the list with a pH
less than 7 and one with a pH greater
than 7:
orange juice, rain water, toothpaste,
bread soda, vinegar, sour milk, milk of
magnesia, cola, washing soda.
2012 Ordinary When hydrochloric acid
(HCl) and sodium hydroxide (NaOH) react in a neutralisation reaction, a salt and one other substance are formed.
Name the salt formed.
Name the other substance formed.
Zinc metal reacts with hydrochloric acid,
HCl.
Bubbles of gas are given off.
Name the gas given off.
Give the test for this gas.
2011 - Ordinary Acids and bases are important in
everyday life.
A student used an acid-base indicator
(e.g. litmus) to investigate a number of
everyday substances to see if they were
acids or bases
If you used an indicator other than litmus give its name.
What is the colour of litmus (or your named indicator) in an acid?
What is the colour of litmus (or your named indicator) in a base?
Describe how you would test a sample of vinegar to show that it is an acid.
What word describes a substance that is neither an acid nor a base?
A student carried out a titration using
hydrochloric acid and sodium hydroxide.
The hydrochloric acid reacted with the
sodium hydroxide to form salt and water.
Name the pieces of equipment A, B and C
shown in the diagram.
Which piece of equipment A, B or C is
usually used to measure out the
hydrochloric acid during the titration?
How does the use of an indicator tell you
that enough hydrochloric acid has been
added to react with all the sodium
hydroxide?
Name the salt formed when the sodium
hydroxide reacts with hydrochloric acid.
Look at the table and name a strong acid
and a weak alkali from it.
Substance Pure
water
Household
ammonia
Urine Gastric
juice
(stomach)
Blood
Ph 7 12 6 1.4 7.4
2010 - Ordinary Choose an example of a household acid
and a household base from the list on the
right.
Water
Vinegar
Baking Soda
When hydrochloric acid and
sodium hydroxide are mixed
they react to neutralise each
other. A salt and water are
formed in the reaction.
Name the salt formed in this
reaction.
Name the piece of equipment
drawn on the right that is used
in the experiment to make this
salt.
Zinc metal reacts with hydrochloric acid,
HCl. Bubbles of gas are given off.
Name the gas given off.
Give the test for this gas.
You are given a bottle of vinegar as
shown in the diagram.
Describe, with the aid of a labelled
diagram, how you would measure the pH
of the vinegar.
2009 - Higher
What is item A used for in the
titration of an acid with a
base?
What happens when an acid
reacts with a base?
2009 - Ordinary The diagram shows the apparatus set up
by a student to investigate the pH of three
different liquids A, B and C.
A few drops of universal indicator were
added to each liquid in a test tube.
Yellow ⇒ pH = 4
• Which test tube, A, B or C, contained distilled
water?
• Which test tube, A, B or C, contained an acid?
A B C
Green ⇒ pH = 7
Blue ⇒ pH = 13
2008 - Higher Classify the substances shown as acidic,
basic or neutral.
7 pure water
2 lemon juice
4 soda water
10 toothpaste
12 lime water
2008 - Ordinary Choose an example of a household acid
and a household base from the list on the
right.
Water
Vinegar
Oven Cleaner
The diagram shows a piece of
magnesium being burned in air.
Magnesium oxide is formed.
When magnesium oxide is tested with
moist red litmus indicator it changes
colour to blue.
What does this tell us about magnesium
oxide?
When hydrochloric acid reacts with sodium hydroxide to neutralise each other, a salt and water are formed. Some of the pieces of equipment used in this experiment are shown in the diagram.
Name the piece of equipment labelled A.
Name the salt formed when sodium hydroxide is neutralised by hydrochloric acid.
Which piece of equipment A or B is usually used to measure the hydrochloric acid during this experiment?
How can you tell by using an indicator that enough hydrochloric acid has been added to neutralise the sodium hydroxide?
2007 - Higher Give the formula of a common base.
Alkalis are water-soluble bases. Name a
substance, which is alkaline.
Describe how to investigate the pH of
everyday substances e.g. antacid
(indigestion powder), lemon juice, oven
cleaner, vinegar etc.
Name an everyday substance with a pH
of less than 7.
2007 - Ordinary Describe, with the help of a labelled
diagram, how you could investigate
simple household substances to see if they
were acidic, basic or neutral.
2006 - Higher The pieces of laboratory equipment shown, together
with some other items, were used to prepare a sample of sodium chloride.
Name item A or item B
There were 25 cm3 volume of base used in this experiment. Describe how the piece of equipment A was used to measure the volume of acid required to neutralise this amount of base.
Name a suitable acid and name a suitable base for the preparation of sodium chloride by this method.
Write a chemical equation for the reaction between the acid and the base that you have named.
2006 - Ordinary When hydrochloric acid reacts with sodium hydroxide to
neutralise each other, a salt and water are formed. Some of
the pieces of equipment used in this experiment are shown in
the diagram.
Name the piece of equipment labelled A.
Name the salt formed when sodium hydroxide is neutralised by hydrochloric acid?
Which piece of equipment A or B is usually used to measure the hydrochloric acid during this experiment?
How can you tell by using an indicator that enough
hydrochloric acid has been added to neutralise the sodium
hydroxide?