PERCENT SUGAR IN BUBBLE GUM

THE MASS PERCENT OF A COMPOUND IS IMPORTANT IN DETERMINING HOW MUCH OF EACH ELEMENT IS PRESENT.

A GREAT WEB SITE TO LOOK UP INFORMATION ON SWEETENERS IS: en.wikipedia.org.

PURPOSE: TO CALCULATE THE MASS PERCENTAGE OF AN INGREDIENT IN A COMMERCIAL PRODUCT.

MATERIALS: X PIECES OF SUGARED BUBBLE GUM, X PIECES OF SUGAR FREE BUBBLE GUM, PAPER CUP, BALANCE

X= THE NUMBER OF LAB PARTNERS

HYPOTHESIS:

SAFETY PRECAUTIONS:

PROCEDURE:

1. RECORD THE BRAND NAME OF THE GUM AND NAME & FORMULA OF THE SWEETENER USED ON THE DATA TABLE. USE A BALANCE TO DETERMINE THE MASS OF A CLEAN PAPER CUP. UNWRAP X PIECES OF BUBBLE GUM CONTAINING SUGAR AND PLACE THEM IN A CUP. DETERMINE THE MASS OF THE CUP AND THE GUM. EACH PERSON IN THE GROUP SHOULD CHEW A PIECE OF GUM TO REMOVE THE SUGAR. RECORD THE TIME IT TOOK TO REMOVE THE SUGAR. COLLECT THE CHEWED GUN IN THE MASSED CUP AND WASH YOUR HANDS. DETERMINE THE MASS OF THE CUP AND GUM. CALCULATE THE MASS OF SUGAR DISSOLVED FROM THE GUM. CALCULATE THE PERCENTAGE OF SUGAR IN THE GUN BY DIVIDING THE MASS OF THE DISSOLVED SUGAR BY THE MASS OF THE UNCHEWED GUM AND MULTIPLY BY 100.

2. REPEAT USING A DIFFERENT BRAND OF GUM WITH AN ARTIFICIAL SWEETENER

3. MAKE SURE CHEWED GUM IS DISPOSED OF PROPERLY.

OBSERVATIONS:

NAME

FORMULA

TIME TO DISSOLVE

MASS OF CUP

MASS OF CUP & UNCHEWED GUM

MASS OF UNCHEWED GUM

MASS OF CUP & CHEWED GUM

MASS OF CHEWED GUM

MASS OF DISSOLVED SUGAR

MASS %

ANALYSIS:

1. WHAT IS THE FORMULA AND MOLAR MASS OF THE SWEETENER USED IN PART 1?

2. WHAT IS THE FORMULA AND MOLAR MASS OF THE SWEETENER USED IN PART 2?

3. WHAT IS THE PERCENTAGE OF SUGAR?

4. WHAT IS THE PERCENTAGE OF THE ARTIFICIAL SWEETENER?

5. CONVERT THE MASS OF THE DISSOLVED SUGAR TO MOLES:

6. CONVERT THE MASS OF THE ARTIFICIAL SWEETENER TO MOLES:

7. HOW MANY MOLECULES OF SUGAR ARE IN THE DISSOLVED SUGAR?

8. HOW MANY MOLECULES OF ARTIFICIAL SWEETENER ARE IN THE DISSOLVED ARTIFICIAL SWEETENER?

9. EVALUATE THE BEST GUM: (SUPPORT YOUR CONCLUSION)