AnswersFL-2003350-Chemistry 1 HonorsPercent Composition and Molecular Formula

Lab: Solubility Answers

10 verified answers
4

Under which conditions would the solubility of a gas be greatest?

A
high pressure and high temperature
B
high pressure and low temperature
C
low pressure and high temperature
D
low pressure and low temperature
5

Under which conditions will sugar most likely dissolve fastest in a cup of water?

A
a sugar cube with stirring at 5°C
B
a sugar cube without stirring at 15°C
C
sugar crystals with stirring at 15°C
D
sugar crystals without stirring at 5°C
6

Which is true about the dissolving process in water?

A
Nonpolar solutes dissolve easily in water.
B
Solute molecules surround water molecules.
C
Molecules or ions of a solute spread throughout the water molecules.
D
Water molecules are repelled by solute ions at the surface of the solute.
8

The graph below shows how solubility changes with temperature.Which two solutions have similar solubilities at 40°C?

Question illustration
A
Na2SO4 and NaCl
B
Na2HAsO4 and NaCl
C
Na2HAsO4 and Na2SO4
D
Ba(NO3)2 and Ce2(SO4)3 • 9H2O
10

The graph below shows how solubility changes with temperature.What is the solubility of Na2HAsO4 at 60°C?

Question illustration
A
20 g/100 mL of water
B
46 g/100 mL of water
C
65 g/100 mL of water
D
70 g/100 mL of water

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