REPORT SHEET Trial Volume of Acid used ( mL) 20.0 20.C 1. 0.10 0.10 2. Molarity of acid used (M) 3. Initial volume reading of base buret 0.00 C.00 Final volume reading of base used 18.5 18.5 4. 5. Volume of base used (4-3, mL) 18-5 18.5 6. Molarity of base (1*2/5, M) 7. Average molarity of base POST- LAB QUESTIONS A student measures 25 mL of acid into the flask and adds the 3 drops of indicator. If the student then adds 20 mL of water to the flask, will this change to amount of base needed to reach the endpoint? 1. 2. Why doesn't the indicator affect the titration results? 2.
REPORT SHEET Trial Volume of Acid used ( mL) 20.0 20.C 1. 0.10 0.10 2. Molarity of acid used (M) 3. Initial volume reading of base buret 0.00 C.00 Final volume reading of base used 18.5 18.5 4. 5. Volume of base used (4-3, mL) 18-5 18.5 6. Molarity of base (1*2/5, M) 7. Average molarity of base POST- LAB QUESTIONS A student measures 25 mL of acid into the flask and adds the 3 drops of indicator. If the student then adds 20 mL of water to the flask, will this change to amount of base needed to reach the endpoint? 1. 2. Why doesn't the indicator affect the titration results? 2.
Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter7: Sollutions And Colloids
Section: Chapter Questions
Problem 7.2E
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Hello,can you help me with number 1 ,2,3,4,5,6,7 and number 1 and 2 at the bottom please?
Transcribed Image Text:Section
Name
REPORT SHEET
Trial
2
20.0
20,C
1.
Volume of Acid used ( mL)
0.10
0.10
2.
Molarity of acid used (M)
3.
Initial volume reading of base buret
O.00
Final volume reading of base used
18.5
18.5
4.
5.
Volume of base used (4-3, mL)
18:5
18.5
6.
Molarity of base (1*2/5, M)
7.
Average molarity of base
POST-LAB QUESTIONS
A student measures 25 mL of acid into the flask and adds the 3 drops of indicator. If the
student then adds 20 mL of water to the flask, will this change to amount of base needed
to reach the endpoint?
1.
2.
Why doesn't the indicator affect the titration results?
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