1.
Complete the following:
a.
ACID – BASE CALCULATIONS:
b.
Exercise (2)
c.
 Mass / Molecular Mass
d.
 Concentration
 Solutions
Mass
i.
symbol: _________________________________________
ii.
unit: ___________________________________________
Molecular mass
i.
symbol: _________________________________________
ii.
unit: ___________________________________________
Mole
i.
symbol: _________________________________________
ii.
unit: ___________________________________________
Write an equation to calculate the number of mole of a
chemical substance. ___________________________________
____________________________________________________
2.
Complete the following:
a.
 Acid / Base
 Acid-Base Reaction
b.
 Neutralization
 Volumetric Analyses
c.
 Titration
d.
Mole
i.
symbol: _________________________________________
ii.
unit: ___________________________________________
Volume
i.
symbol: _________________________________________
ii.
unit: ___________________________________________
Concentration
i.
symbol: ________________________________________
ii.
unit: ___________________________________________
Write an equation to calculate the concentration of a solution.
____________________________________________________
____________________________________________________
e.
Write the formula of a hydronium ion. ______________________
____________________________________________________
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3.
4.
Explain the meaning of a solution. ______________________________
7.
How will the pH of water change if an acid is dissolved water? _
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
Explain the following:
8.
What is the pH-range of an acid solution? _______________________
a.
9.
Write the formula of the following base and classify each as a strong
b.
a strong acid: _________________________________________
_____________________________________________________
or weak base:
a weak acid: __________________________________________
a.
_____________________________________________________
c.
____________________________________________________
a strong base: _________________________________________
b.
_____________________________________________________
d.
a weak base: _________________________________________
c.
d.
strong or weak acid:
b.
hydrogen chloride: _____________________________________
10.
Write the dissociation reaction when each of the following is mixed
_____________________________________________________
with water:
hydrogen sulphate: _____________________________________
a.
hydrogen nitrate: ______________________________________
b.
c.
with water. Indicate the phases of each substance:
hydrogen chloride: _____________________________________
d.
hydrogen sulphate: _____________________________________
calcium hydroxide: _____________________________________
____________________________________________________
11.
_____________________________________________________
c.
potassium hydroxide: ___________________________________
____________________________________________________
_____________________________________________________
b.
magnesium hydroxide: _________________________________
____________________________________________________
Write the ionization reaction when each of the following is mixed
a.
sodium hydroxide: _____________________________________
____________________________________________________
____________________________________________________
6.
calcium hydroxide: _____________________________________
____________________________________________________
_____________________________________________________
c.
potassium hydroxide: ___________________________________
____________________________________________________
Write the formula of the following acids and classify each as a
a.
magnesium hydroxide: _________________________________
____________________________________________________
_____________________________________________________
5.
sodium hydroxide: _____________________________________
Calculate the concentrations of the following acid solutions:
a.
20g hydrogen chloride dissolved in 50ml water: ______________
hydrogen nitrate: ______________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
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____________________________________________________
13.
____________________________________________________
Hydrogen sulphate (25g) is dissolved in water (150cm3).
a.
____________________________________________________
b.
250mg hydrogen sulphate dissolved in
55cm3
____________________________________________________
water: __________
b.
____________________________________________________
_______________________________________________
____________________________________________________
_______________________________________________
ii.
_______________________________________________
____________________________________________________
_______________________________________________
12g hydrogen nitrate dissolved in 120 dm3 water: ____________
iii.
_______________________________________________
____________________________________________________
_______________________________________________
14.
Hydrogen nitrate (150mg) is dissolved in water (750ml).
a.
b.
Hydrogen chloride (17mg) is dissolved in 150ml water.
Calculate:
i.
the concentration of the solution: _____________________
Calculate the concentration of the hydrogen chloride solution.
_______________________________________________
____________________________________________________
_______________________________________________
____________________________________________________
d.
Write the ionization reaction. _____________________________
____________________________________________________
____________________________________________________
c.
the concentration of the sulphate ions: ________________
____________________________________________________
____________________________________________________
b.
the concentration of the hydronium ions: _______________
____________________________________________________
____________________________________________________
a.
the concentration of the solution: _____________________
____________________________________________________
____________________________________________________
12.
Calculate:
i.
____________________________________________________
c.
Write the ionization reaction. _____________________________
ii.
the concentration of the hydronium ions: _______________
Write the ionization reaction. _____________________________
_______________________________________________
____________________________________________________
_______________________________________________
Calculate the concentration of the hidronium ions. ____________
iii.
the concentration of the nitrate ions: __________________
____________________________________________________
_______________________________________________
____________________________________________________
_______________________________________________
Calculate the concentration of the chloride ions. ______________
15.
____________________________________________________
____________________________________________________
© Direct-Science
Sodium hydroxide (5g) is dissolved in 10ml water.
a.
Write the dissociation reaction. ___________________________
____________________________________________________