1. What was the purpose of creating a sodium bicarbonate solution? What was the purpose of adding soap to the solution?

1. Source of carbon  

2. Removal of cuticle

Explanation:

You may have been doing a photosynthesis lab in a biology course.

1. NaHCO₃

The purpose of creating a sodium bicarbonate solution was to provide the carbon that the plant needs for photosynthesis.

2. Soap solution

The soap solution acted as a detergent.  It removed some of the waxy, water-repelling cuticle from the leaf's surface and made it easier for the sodium carbonate solution to get inside.

i need mutiple choices

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.