Warm-Up 9/24/14
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Warm-Up 9/24/14 1) Please put your Nutrient paper into the basket. 2) Continue on Pre-Lab questions from yesterday. Pre-Lab Questions 1) What is the purpose of the lab? 2) What is the chemical name of vitamin C? 3) Why is vitamin C important to have in your diet?
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Warm-Up 9/24/14. Please put your Nutrient paper into the basket. Continue on Pre-Lab questions from yesterday. Pre-Lab Questions What is the purpose of the lab? What is the chemical name of vitamin C? Why is vitamin C important to have in your diet?. Objective 9/24/14 - PowerPoint PPT Presentation
Transcript of Warm-Up 9/24/14
Warm-Up 9/24/141) Please put your Nutrient paper
into the basket.2) Continue on Pre-Lab questions
from yesterday.Pre-Lab Questions
1) What is the purpose of the lab?2) What is the chemical name of
vitamin C?3) Why is vitamin C important to
have in your diet?
Objective 9/24/14Discuss how to determine the
amount of Vitamin C in a tablet.
Agenda 9/24/14Finish Pre-Lab Questions
Pre-Lab Questions4) What is the recommended daily
allowance of vitamin C?5) What chemicals are we using in
this lab?6) What types of chemical
reactions are going to occur in this lab?
7) What color will indicate that all the vitamin C in the sample has been consumed?
Pre-Lab Questions1)What is the purpose of the lab?2)What is the chemical name of
vitamin C?
Pre-Lab Questions3) Why is vitamin C important to have in your diet?
Pre-Lab Questions4) What is the recommended daily allowance of vitamin C?
Pre-Lab Questions5) What chemicals are we using in this lab?• Iodide ion (I-) potassium
iodide (KI) solution• Starch• Iodate ion (IO3
-) 0.05 M potassium iodate (KIO3) solution• Ascorbic acid (vitamin C)
C6H8O6
Pre-Lab Questions6) What types of chemical
reactions are going to occur in this lab?1: Iodate ion reacts with iodide ion to form iodine.
2: Iodine reacts with vitamin C. 3: No more vitamin C iodine reacts with starch.
Pre-Lab Questions1: Iodate ion reacts with iodide ion to form iodine.
IO3- + I- I2
2: Iodine reacts with vitamin C. I2 + C6H8O6
3: No more vitamin C iodine reacts with starch.
I2 + starch
Pre-Lab Questions7) What color will indicate that all
the vitamin C in the sample has been consumed?
Vitamin C Titration Lab1) Form a group of three or four.
2) Read procedure for part A only.
3) Reword procedure so that you know exactly what you and your lab group will be doing during the lab. This will be turned into Ms. Au-Yeung by the end of class.
4)With your lab group, determine what two types of a liquid you would like to test
(ex. fresh vs. frozen orange juice). You will be responsible for bringing these samples in.
Timeline for Project
Next Friday, 10/3/14Presentation due
HAVE A FABULOUS REST OF THE WEEK AND
WEEKEND!
