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WorksheetsSolutions
Total questions: 25
Worksheet time: 15mins
Name
Class
Date
1.
You place electrodes in a solution and this happens! This solution must be:
a)
electrolyte & ionic bond
b)
electrolyte & covalent bond
c)
nonelectrolyte & ionic bond
d)
nonelectrolyte & ionic bond
2.
At 40 oC and 50 g/l the solution of KCl would be:
a)
saturated
b)
supersaturated
c)
unsaturated
3.
At 40 oC and 50 g/l the solution of KCl in 200 g of water would be:
a)
saturated
b)
supersaturated
c)
unsaturated
4.
If the saturated solution of K2Cr2O7 was cooled from 80 to 60 oC, how much solute would fall out?
a)
20 g
b)
40 g
c)
15 g
d)
30 g
5.
At 60oC and 50 g/l solution of KNO3 would be:
a)
Saturated
b)
Supersatured
c)
Unsaturated
6.
A way to increase the amount of sugar dissolved in tea is to
a)
crush and cool
b)
crush and leave alone
c)
crush and heat
7.
For a gas, solubility will increase if _____ increases.
a)
Pressure
b)
Temperature
c)
Aggitation
8.
If you add more sugar to tea that is already saturated (without changing the temperature):
a)
some of the sugar will dissolve
b)
the sugar will fall out of the solution
c)
all of the sugar will dissolve
9.
How many L of a 14 M stock solution must beused to make 250 mL of a 1.75 M solution? M1V1=M2V2
a)
0.031 L
b)
31.3 L
c)
2000 L
d)
10.2 L
10.
Which of the following bonds are soluble in water?
a)
polar & nonpolar covalent
b)
polar covalent & ionic
c)
nonpolar covalent & ionic
d)
Only ionic
11.
Calculate the molarity of 25.0 grams of KBr dissolved in 0.75 L (hint: find moles convert to grams)
a)
0.280 M
b)
0.210 M
c)
33.3 M
12.
Convert 15 g of sodium chloride into moles.
a)
0.257 moles
b)
877 moles
c)
58.443 moles
13.
How many moles of solution will result when 15.0 L of H2SO4 is used to make a 0.20 M solution?
a)
75 moles
b)
7 moles
c)
3 moles
d)
0.013 moles
14.
Convert 3000 mL into L.
a)
3000 L
b)
300 L
c)
30 L
d)
3 L
15.
In a Hydrogen bond the slightly positive hydrogen in water is attracted to:
a)
positive ions
b)
negative ions
16.
A student adds salt to water in a test tube but no more salt dissolves. The solution is:
a)
supersaturated
b)
saturated
c)
unsaturated
17.
What is the molarity of a solution containing 8.0 moles of solute in 500 mL of solution?
a)
0.016 M
b)
16 M
c)
62.5 M
d)
0.063 M
18.
A homogeneous substance in which one substance is dissolved in another is called a
a)
suspension
b)
element
c)
solution
d)
compound
19.
How are an aqueous (aq) solution and a liquid (l) different?
a)
There is no difference the are exactly the same thing.
b)
A (l) is a pure substance & (aq) has water as the solvent.
c)
(l) is not a mixture and (aq) is a heterogeneous mixture.
20.
In a concentrated solution there is a _________ amount of _________.
a)
small, solvent
b)
small, solute
c)
large, solvent
d)
large, solute
21.
When salt is dissovled in water the salt is the __________.
a)
solvent
b)
solute
c)
alloy
d)
mixture
22.
A nonpolar molecule has ____________________________________.
a)
slightly positive and slightly negative poles.
b)
no separation of poles
23.
You place electrodes in a solution and this happens! The solution must be:
a)
nonelectrolyte & covalent bond
b)
nonelectrolyte & ionic bond
c)
electrolyte & covalent bond
d)
electrolyte & ionic bond
24.
Which solution is more concentrated?
a)
1 mole of solute in 1 liter of solvent
b)
3 moles of solute in 6 liters of solvent
c)
4 moles of solute in 2 liters of solvent
25.
How prepared are you for the upcoming chemistry test!
a)
I'm ready
b)
I REALLY need to study
c)
I NEED to come in for tutoring!!
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