pH PhET Lab Exit Ticket

What is the primary focus when using the PhET simulation for pH and dissociation constant?

• Quantity of the solution

• Concentration of the solution

• Temperature of the solution

• Color of the solution

In the PhET simulation, which option should you select to observe molecular interactions?

• Macro

• Micro

• Nano

• Mega

What should you observe about the H₃O⁺ and OH⁻ ions in the PhET simulation?

• Their color

• Their concentration

• Their temperature

• Their size

What is the relationship between pH and -log([H₃O⁺])?

• They are directly proportional.

• They are inversely proportional.

• They are unrelated.

• They are equal.

What do you notice about the relationship between [H₃O⁺] and [OH⁻] in a neutral solution?

• [H₃O⁺] is greater than [OH⁻].

• [H₃O⁺] is less than [OH⁻].

• [H₃O⁺] is equal to [OH⁻].

• [H₃O⁺] and [OH⁻] are unrelated.

What is the value of [H₃O⁺]*[OH⁻] in pure water at 25°C?

• 1 x 10⁻¹⁴

• 1 x 10⁻⁷

• 1 x 10⁻¹

• 1 x 10⁻⁴

What happens to the concentration of [H₃O⁺] when water is added to a solution?

• It increases

• It decreases

• It stays the same

• It becomes zero

Which of the following is a likely effect on [OH⁻] concentration when water is added to a solution?

• It increases

• It decreases

• It stays the same

• It doubles

Match the following with the correct card

• pH change from 4 to 6

• Hydronium concentration decreases by 100

• pH change from 4 to 1

• Hydronium concentration decreases by 1000

• pH change from 4 to 2

• Hydronium concentration increases by 1000

• pH change from 4 to 7

• Hydronium concentration increases by 100

Tags

NGSS.HS-PS1-5

A solution with a pH of 4.0 has a hydronium ion concentration a thousand times greater than a solution with a pH of

• 1.0

• 2.0

• 6.0

• 7.0