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WorksheetsUnit 3 Part 2 Notes 1: Solvation
Total questions: 17
Worksheet time: 13mins
How do we define a solute?
Usually a liquid, in which other materials dissolve to form a solution
A substance that is dissolved in a solution
A substance with sulfur in it
When a solution contains a mixture of two substances
____________ is the process where particles of a solvent completely surround the particles of a solute.
solvation
immisciblation
dissolution
saturation
Solvation will happen if the attractive forces between the solute and solvent particles are stronger than the individual forces inside the solute and solvent themselves.
True
False
Which of these would be most likely to decrease the rate of solvation?
stirring or shaking
breaking the solute into smaller pieces
lowering the temperature
increasing the temperature
What does "like dissolves like" mean?
polar solvents dissolve in polar solutes
polar solutes dissolve in polar solvents
non-polar solvents dissolve in polar solutes
non-polar solutes dissolve in polar solvents
In general, which types of compounds dissolve easily in water?
A lowercase delta plus (δ+) or delta minus (δ–) by the individual atoms signify ___
partial charges
the magnetic poles
a difference in electronegativities
nonpolar molecules
There are lots of different molecules, like the surfactants in soap, that have both ___
polar and nonpolar areas
covalent and ionic bonds
cohesive and adhesive forces
hydrogen and oxygen bonds
How does NaCl dissolve in water? (check all that apply)
the Na ion is attracted to the hydrogen in the water molecule
the Cl ion is attracted to the hydrogen in the water molecule
the Na ion is attracted to the oxygen in the water molecule
the Cl ion is attracted to the oxygen in the water molecule
Ethanol is a polar solvent. Which of the following statements is true?
Water will dissolve into ethanol because water is polar too.
Water will dissolve into ethanol because water is nonpolar.
Oil will dissolve into ethanol because oil is polar too.
Oil will dissolve into ethanol because oil is nonpolar.
How does soap dissolve both water and grease? (choose all that apply)
the hydrophobic end of soap attracts to water
the hydrophilic end of soap attracts to water
the hydrophobic end of soap attracts to grease
the hydrophilic end of soap attracts to grease
The separation of ions that occurs when an ionic compound dissolves is called
ionization
dissociation
electronegativity
spectation
Which equation demonstrates the dissociation of NaCl in water?
NaCl(s) --->Na+(aq) + Cl-(aq)
NaCl(s) ---> Na(s) + Cl-(aq)
NaCl (aq) ---> Na+(aq) + Cl-(aq)
NaCl (s) ---> Na+(s) + Cl-(s)
Which equation demonstrates the dissolving process of glucose, C6H12O6?
C6H12O6(s) ---> C6H12O6(aq)
C6H12O6(aq) ---> C6H12O6(aq)
C6H12O6(s) ---> C6H12O6(aq) + H2O (l)
C6H12O6(s) + H2O (l)---> C6H12O6(aq)
The dissociation equation for acetic acid is represented by: HCH3CO2 (aq) ⇄ CH3CO2− (aq) + H+ (aq). What is the significance of the double-headed arrow?
acetic acid is a weak electrolyte
acetic acid is a strong electrolyte
acetic acid is not an electrolyte
acetic acid is not soluble
