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WorksheetsMoles calculations
Total questions: 20
Worksheet time: 40mins
Select the appropriate vocabulary word based on the definition:
the amount of solute dissolved in a measure of solvent
concentration
biomagnification
dilute
ratio
Select the concentration rules for SOLUTES:
the more___ used the more concentrated the solution is
the less ___ used the less concentrated the solution is
the more ___ used the more dilute the solution
the less ___ used the more concentrated the solution is
Select the concentration rules for SOLVENT:
the more___ used the more concentrated the solution is
the less ___ used the less concentrated the solution is
the more ___ used the more dilute the solution
the less ___ used the more concentrated the solution is
Concentration is
the amount of solute in the solvent
the amount of solvent in the solute
density
particle size
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
In order to dilute a solution, you need to
add more of the solid
add more water
find the mass
find the volume
What is the mass of 1 mole of nitrogen gas?
56.0 g
28.0 g
14.0 g
12.0 g
The relative molecular mass of calcium hydroxide is
40.1
57.1
74.1
91.1
Element X forms an acid with the formula H3XO4. The relative molecular mass of acid is 98.0. What is the relative atomic mass of X?
81.0
34.0
33.0
31.0
What is the mass of aluminium contained in 204 g of aluminium oxide?
27 g
54 g
108 g
150 g
One mole of hydrogen and one mole of ammonia have the same
mass in grams
number of molecules
number of atoms
relative molecular mass
Which amount contains the largest mass?
1 mole of water molecules
0.25 mole of magnesium oxide
10 moles of hydrogen atoms
6 dm3 of sulfur dioxide gas at r.r.p.
