Intermolecular Forces and Properties
How does increasing the temperature of a saturated solution most likely affect the solubility of a solid solute?
Decreases solubility
Causes precipitation until temperature is decreased
Does not affect solubility
Increases solubility
Considering periodic trends, which metal is expected to form an aqueous solution with the highest conductivity?
Potassium (K), being an alkali metal with high reactivity and propensity to lose one electron easily.
Copper (Cu), as it commonly forms compounds that are not fully dissociated in water.
Silver (Ag), due to its relatively low reactivity compared to other metals and tendency for covalent bonding.
Mercury (Hg), since it tends to form poorly soluble salts limiting ion availability in solution.
What happens when NaCl(s) dissolves in water?
The compound breaks into Na+ and Cl- ions.
Water molecules break into H+ and OH- ions.
NaCl(s) keeps clustered together without separating.
NaCl(s) reacts with water and forms HCL & NaOH.
Which of the following is a correct unit for molarity?
liters per mole
kilograms per liter
moles per liter
grams per milliliter
In comparing viscosity trends among several aqueous salt solutions at fixed concentration and temperature how could one justify unexpected results wherein certain salts seemingly decrease water’s viscosity?
Viscosity decreases due to an error in measurement rather than genuine solution properties.
Decreased viscosity is primarily attributed to temperature fluctuations despite controlled conditions.
Specific ion effects related to structure breaking or making phenomena could account for anomalous behavior.
Uniform salts should not show any change in water viscosity as colligative properties are concentration-based.
Which factor does NOT affect the rate at which a solid solute dissolves in a solvent?
Color of the solid
Size of the solid particles
Stirring speed
Temperature of the solvent
Which of the following substances is a strong electrolyte?
Sodium chloride (NaCl)
Glucose (C6H12O6)
Ethanol (C2H5OH)
Acetic acid (CH3COOH)

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In a chemical reaction, if the total mass of the reactants is 50 grams, what should be the total mass of the products according to the Law of Conservation of Mass?
75 grams
The mass can't be determined.
50 grams
25 grams
Which factor most directly contributes to an increase in solution entropy when table salt dissolves in water?
Formation of hydrogen bonds between water molecules after salt dissolution reduces overall motion of solvent molecules..
Decrease in volume due to interaction between Na+ ions with negatively charged oxygen atom on water molecules..
Dispersion of Na+ and Cl- ions throughout the solvent creating more microstates for particles positionally..
Liberation of heat during dissolution leading to increased kinetic energy among solvent molecules..
How does solvent polarity affect solubility when comparing dissolution of salts versus nonpolar substances?
Salts are more soluble in polar solvents due to ion-dipole interactions while nonpolar substances are less soluble.
Salts are less soluble in polar solvents because they disrupt hydrogen bonding networks within the solvent.
Solvent polarity has no significant effect on salt dissolution but affects nonpolar substances greatly.
Nonpolar substances dissolve equally well in both polar and nonpolar solvents due to van der Waals forces.