pH and Hydronium Investigation 1

Which real-world context is relevant to the topic of acids and bases as mentioned in the slide?

• Tooth erosion caused by drinking acidic beverages

• The process of photosynthesis in plants

• The boiling point of water at different altitudes

• The effect of sunlight on skin pigmentation

What is the relationship between [H₃O⁺] and pH in terms of acidity and basicity?

• [H₃O⁺] is directly proportional to pH and determines the basicity.

• [H₃O⁺] is inversely proportional to pH and determines the acidity.

• [H₃O⁺] has no relation to pH and does not affect acidity or basicity.

• [H₃O⁺] is equal to pH and they both increase together.

What can the consumption of acidic beverages lead to?

• Stronger tooth enamel

• Decreased tooth sensitivity

• Tooth erosion

• Lower risk of cavities

Which acid is commonly found in soda?

• Citric acid

• Acetic acid

• Carbonic acid

• Phosphoric acid

Where is citric acid commonly found?

What is a potential consequence of tooth enamel erosion?

• Increased tooth sensitivity

• Whiter teeth

• Stronger teeth

• Less risk of cavities

How can we tell if our drink is acidic, basic or neutral?

• By tasting it

• By checking the pH level

• By looking at the color

• By smelling it

Rank the following beverages from least acidic to most acidic.

• water < soda < OJ < coffee

• water < coffee < OJ < soda

• soda < OJ < coffee < water

• Not sure

What is pH measuring?

• The amount of hydronium ions in a solution

• The temperature of a solution

• The amount of hydrogen gas in a solution

• The viscosity of a solution

Based on the pH values shown, which beverage produces more hydronium ions in the mouth?

• Coffee

• Soda

• Both produce the same amount

• Not sure