Solutions and Solvation

• Substance A because HCl is a strong acid, therefore, a strong electrolyte
• Substance A because HCl is a weak acid, therefore, a nonelectrolyte
• Substance B because HCl is a strong acid, therefore a nonelectrolyte
• Substance B because HCl is a weak acid, therefore a strong electrolyte

Tags

NGSS.MS-PS1-2

Which of the following would not be a good example of a strong electrolyte?

• 0.5 M HCl
• 0.5 M NaOH
• 0.5 M LiCl
• 0.5 M C₆H₁₂O₆

Which of the following is not a characteristic of a solution?

• particles in solution are too small to be filtered
• particles in solution are too small to be seen
• particles in solution exhibit the Tyndal effect
• particles in solution do not settle

Which of the following is the solute of a 0.5M NaOH solution?

• water
• Na
• OH
• NaOH

Which of the following is the solvent of a 0.1M HCl solution?

• H
• Cl
• HCl
• water

• Illustration A
• Illustration B
• Illustration C
• Illustration D

A student tests two solutions for conductivity. One of the solutions does not conduct electricity at all. Which of the following could explain why a solution wouldn't conduct electricity?

• The solution is made of ions
• The solution is made of an insoluble solute
• The solution is made of a soluble solute that does not break into ions when mixed in water
• The solution is made of a nonpolar covalent solute

The reason why water is able to dissolve many ionic compounds, such as table salt (NaCl), is because

• water is polar covalent and the partially positive hydrogens pull the cationios out of the salt crystal
• water is polar covalent and the partially negative oxygens pull the cations out of the crystal
• water is polar covalent and the partially negative oxygens pull the anions out of the crystal
• water is an ionic compound and the negative ion of oxygen pulls out the positive ion of sodium

Which of the following compounds is not matched to its proper conductivity?
a. KOH - high conductivity
b. HNO₃ - high conductivity
c. NaF - low conductivity
d. mineral oil - no conductivity

• a
• b
• c
• d

The sport drink Gatorade is marketed as a replacement for lost electrolytes due to athletic activity. The ingredient list for Gatorade is listed below:
Water, liquid sugar, glucose-fructose, citric acid, natural and artificial strawberry flavor, salt, sodium citrate, monopotassium phosphate and color.
Which ingredients are actually electrolytes?

• water and liquid sugar
• glucose-fructose
• strawberry flavor
• citric acid, salt, sodium citrate, and monopotassium phosphate