Neutralization Reactions

Which of the following is an observable property of an acid?

• They become slippery when reacting with water.

• They react with metals to release hydrogen gas.

• They produce salts when mixed with other acids.

• They become more acidic when mixed with a base.

In a titration, 40mL of 0.30M lithium hydroxide solution is added to neutralize 8.0mL of a hydrofluoric acid solution. What is the molarity of the hydrofluoric acid solution?

• 0.30M

• 0.06M

• 1.5M

• 5.0M

Tags

NGSS.HS-PS1-7

What is the pH of a solution of KOH with a hydroxide concentration of [OH^-] = 1 x 10^-4 ?

• 10

• 4

• -4

• -10

Potassium hydroxide (KOH) is a strong base because it

• easily releases hydroxide ions.

• reacts to form salt crystals in water.

• does not dissolve in water.

• does not conduct an electric current.

Of four different laboratory solutions, the solution with the highest acidity has a pH of

• 11.

• 7.

• 5.

• 3.

Which word equation represents a neutralization reaction?

• salt + water --> acid + base

• salt + acid --> base + water

• base + salt --> water + acid

• base + acid --> salt + water

Tags

NGSS.MS-PS1-5

According to the Brønsted-Lowry theory, a water molecule acts as an acid when the water molecule _____.

• accepts an H+

• accepts an OH-

• donates an H+

• donates an OH-

Which of the following is the correct name for the acid identified by the formula HCl?

• Chlorous acid

• Perchloric acid

• Hydrochloric acid

• Chloric acid

A student performed a series of titrations to find the concentration of an unknown acid. The results of the titrations are shown in the data table. What is the average molarity for this set of data?

• 0.801 M

• 0.984 M

• 1.77 M

• 1.02 M

A student wearing goggles, gloves, and an apron begins a simple activity to determine the pH of corrosive solutions. Before the activity begins, what other safety measures should the student follow?

• Identify the locations of eye wash, shower, and fire equipment

• Check and set clocks and record the beginning time

• Review the proper method of fire-polishing glass tubing

• Arrange the equipment in the work area alphabetically