pH and Solubility Quiz - AICE Marine

What is the pH of a neutral solution at 25°C?

• 0

• 7

• 10

• 14

Which of the following solutions is the most acidic?

• pH 3

• pH 7

• pH 9

• pH 12

Which ion is responsible for acidity in a solution?

• OH⁻

• H⁺

• Na⁺

• Cl⁻

Which of the following solutions is the most basic?

• pH 2

• pH 5

• pH 7

• pH 13

If a solution has a high concentration of OH⁻ ions, its pH will be…

• Low

• Neutral

• High

• Impossible to determine

Which pH value would most likely belong to seawater?

• 3

• 5

• 8

• 12

Which statement about solubility is true?

• Solubility is always the same, no matter the temperature.

• Solubility describes how much solute dissolves in a solvent at a certain temperature

• Solubility is measured in grams of solvent per liter of solute.

• Solubility is unrelated to concentration.

If you add more solute to a saturated solution, what happens?

• It dissolves completely.

• It makes the solvent less polar.

• It will not dissolve and remains undissolved

• The solution’s temperature decreases immediately.

A student notices that more sugar dissolves in hot tea than in iced tea. What is the best explanation?

• Sugar molecules change shape in hot water.

• Solubility of most solids increases with temperature

• Solubility of solids decreases with temperature.

• Tea molecules push sugar away at low temperatures.

Tags

NGSS.MS-PS1-4

A pH of 4 is how many times more acidic than a pH of 6?

• 2 times

• 10 times

• 100 times

• 1,000 times