Question

part c
list the amounts of baking soda and vinegar that you will use in each combination. remember, the amount of one of the two substances must be held constant.

Explanation:

To solve this, we can design an experiment where we hold one substance's amount constant and vary the other. Let's choose to hold the amount of baking soda constant (e.g., 1 tablespoon) and vary the amount of vinegar, or vice versa. Here's an example:

Step 1: Decide the constant substance and its amount

Let's hold the amount of baking soda constant at 1 tablespoon.

Step 2: Determine varying amounts of the other substance (vinegar)

We can use different volumes of vinegar, say 10 mL, 20 mL, 30 mL, 40 mL, 50 mL.

Step 3: List the combinations

• Combination 1: Baking soda = 1 tablespoon, Vinegar = 10 mL
• Combination 2: Baking soda = 1 tablespoon, Vinegar = 20 mL
• Combination 3: Baking soda = 1 tablespoon, Vinegar = 30 mL
• Combination 4: Baking soda = 1 tablespoon, Vinegar = 40 mL
• Combination 5: Baking soda = 1 tablespoon, Vinegar = 50 mL

(Alternatively, we could hold vinegar constant and vary baking soda. For example, hold vinegar at 20 mL and use baking soda amounts like 0.5 tsp, 1 tsp, 1.5 tsp, 2 tsp, 2.5 tsp)

Answer:

Here is a sample list of combinations (holding baking soda constant at 1 tablespoon and varying vinegar):

• Baking Soda: 1 tablespoon, Vinegar: 10 mL
• Baking Soda: 1 tablespoon, Vinegar: 20 mL
• Baking Soda: 1 tablespoon, Vinegar: 30 mL
• Baking Soda: 1 tablespoon, Vinegar: 40 mL
• Baking Soda: 1 tablespoon, Vinegar: 50 mL

(If you prefer to hold vinegar constant, here’s another example:

• Vinegar: 20 mL, Baking Soda: 0.5 teaspoon
• Vinegar: 20 mL, Baking Soda: 1 teaspoon
• Vinegar: 20 mL, Baking Soda: 1.5 teaspoons
• Vinegar: 20 mL, Baking Soda: 2 teaspoons
• Vinegar: 20 mL, Baking Soda: 2.5 teaspoons

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