Acids, Bases, & Solubility Curves

How much KNO₃ solute is saturated at 40 degrees?

• 75

• 55

• 65

• 85

How much NaBr solute is saturated at 70 degrees?

• 110

• 120

• 130

• 140

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

What type of a solution is 100g KNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

What type of a solution is 260g sugar at 50ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.
• Red litmus paper turns blue when placed in a base.
• Blue litmus paper stays blue when placed in an acid.
• Red litmus paper stays red when placed in a base.

Which of the following will conduct electricity? Select all that apply

• Acidic solutions

• Basic solutions

• Ionic solutions

• Neutral covalent solutions

Which of the following are properties of acids but not bases? Select all that apply.

• Changes the color of an indicator

• Sour taste

• Reacts with metals to produce hydrogen gas

• Feels slippery