Decker Haag - pH Lab | Answer Key

University:
Washington State University
Course:
MATH 172 | Calculus II
Academic year:

2022
Views:

0

Pages:

2
Author:

Decker Haag

Name__________________ Period_______ Date________ pH Lab Directions: Follow the procedure and answer the following questions in your groups. Use your book pg. 44-45 to help answer the questions. Materials: Litmus Paper In Cups: Milk of Magnesia Water Vinegar Lemon Juice Coke Baking Soda and Water 1. What is an acid? An acid is a chemical substance that dissolves some things. 2. What is a base? A base is a substance that can be neutralized by the acid. 3. Which has more H+ in the solution (acid or base)? An acid has more H+ in the solution. 4. Name two reasons why acids and bases are important to study in biology. 2 reasons why acids and bases are important to study in biology are that some acids are toxic and some aren't and bases are needed to create stuff 5. What substances in the human body help regulate pH? The pulmonary and renal systems. 6. Predict if each solution will be an acid or a base. Milk of Magnesia: Water: Vinegar: Lemon Juice: Coke: Baking Soda: 7. Now use the Litmus paper and the pH scale to write down the actual pH of each liquid. Then, write whether it is an acid or base. pH Acid or Base? Milk of Magnesia 9 acid Water 6 1 acid 1 base 2 9 base Vinegar Lemon Juice Coke Baking Soda base acid