Starter What ions are found in acids What ions are found in alkalis What is the chemical formula for water give an example of a neutralisation reaction use a pH meter to measure pH observe the changes in pH during a neutralisation ID: 492734
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Slide1
Neutralisation
Starter:
What ions are found in acids?
What ions are found in alkalis?
What is the chemical formula for water? Slide2
give an example of a neutralisation reaction
use a pH meter to measure pHobserve the changes in pH during a neutralisation
reaction
explain that acids are similar because they all produce hydrogen ions in solution
explain that alkalis are similar because they all produce hydroxide ions in solution
give an ionic explanation of neutralisation reactions
H: work out the formula of a salt given the formula of the parent acid and alkaliSlide3
Acids
When acids dissolve in water they also react to release ions.
HNO
3
H
+
(
aq
)
+ NO
3
–
(
aq
)
HCl
(g)
H
+
(
aq
)
+ Cl
–
(
aq
)
H
2
SO
4
H
+
(
aq
)
+ SO
4
–
(
aq
)
What is common between all these reactions? Slide4
Alkalis
Alkalis also react with water.
NaOH
(
aq
)
Na
+
(
aq
)
+ OH
-
(
aq
)
KOH
(
aq
)
K
+
(
aq
)
+ OH
-
(
aq
)
LiOH
(
aq
)
Li
+
(
aq
)
+ OH
-
(
aq
)
What is common between all these reactions? Slide5
Neutralisation
H+ (
aq
)
+ OH
-
(
aq
)
H2O
(l)
Hydrogen ions and hydroxide ions react to produce water which is neutral.
Lets have a look! Slide6
Making salts Slide7
Making salts
Salts are made when an acid is neutralised by an alkali. Each salt therefore has an acid “parent” and an alkali “Parent”.Slide8