Question

PRELAB ASSIGNMENT 1. For each product listed, provide the chemical formula and name of the acid or base in that product Label each substance as an acid or a base. Consumer Product Substance Name Substance Formula Acid or Base? Lemon juice Rolaids antacid Tums antacid 2. In Part 1, you will use the observed solution color change due to phenolphthalein (colorless to pink, at the endpoint) to indicate the completion of each reaction. Due to the colors of the juices you will be studying, the expected color change of colorless to pink may not be observed. For each juice, state the color change that you will observe at the endpoint. Grapefruit juice Orange juice Lemon juice 3. The indicator that will be used in Part 2 is methyl orange. What is the color change that you will observe at the endpoint for the titration of the Rolaids and Tums?

Answer 1

Solution 1

* 01. Substance name Substance nulla Acid) Base Lemon Juice Citric acid CH807 G6H807 Acid 2) Rolands antacid Base Calcium Carbonate and magnesium hydroxide Calcium Carbonate - CaCO3 and MgCOH)2 ** 3) Tums antacid Cacoz Base