Exp9 - exp 9 PDF

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Summary

exp 9...

Description

Sugar in B

Experiment Inventory Materials

Labware

*2 Pieces of Sugared Bubble Gum

Digital Scale

*Paper Towels

Weigh Boat

*Calculator

Note: You must provide the materials listed in *red.

EXPERIMENT 1: SUGAR IN BUBBLE GUM In this experiment, you will determine the number of moles of sugar in bubble gum. LAB SAFETY: If you are diabetic or have allergies to sugar, you are advised not to com and to notify your instructor with documentation of your condition.

PROCEDURE 1. Make sure the scale is reading in the grams (g) mode. If you don’t see a small g on the top-right of y button on the left-hand side labeled M (for mode) until you see a g. 2. Place your weigh boat on the digital scale. 3. Press the (0/T) button so that your scale reads 0.0 g. 4. Place the two pieces of unchewed, unwrapped sugared bubble gum onto the weigh boat, and determ the data in Table 1 on the Experiment 1 Data Sheet. 5. Chew each piece of bubble gum for at least 1 minute, or chew both pieces for at least 2 minutes. Hint: Be sure to spit out or swallow all of the sugar from the gum as you chew it. The pu the gum is to remove the sugar. 6. After 2 minutes, collect the chewed gum in a paper towel, and carefully blot the gum to remove exce 7. Using a clean paper towel, wipe out your weigh boat and place your weigh boat on the scale. 8 P

th (0/T) b tt

th t

l

d 00

Experiment 1

Table 1. Sugar (Sucrose) Data Mass of unchewed gum (g)

Mass of chewed gum (g)

Mass of sugar (g)

Percen...