Answered: 1) What does the indicator tell you?…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. 1) What does the indicator tell you? (before blowing) _____________________________________________________________ _____________________________________________________________ 2) Why did the color change to colorless? _____________________________________________________________ _____________________________________________________________ 3) What caused it to happen?/ What could be the cause of this? _____________________________________________________________ _____________________________________________________________ 4) What would be the color change when a small amount of NH3 solution was added to the colorless solution? _____________________________________________________________ _____________________________________________________________ Consider the scenario below: A 40-year-old woman was rushing to get to her workplace before office time. What do you think would have happened to her blood's pH? _________________________________________________________________ _________________________________________________________________ What would be the effect on pH once she reaches her office, but continues to breathe hard for a few minutes? __________________________________________________________________ __________________________________________________________________ Why? __________________________________________________________________ __________________________________________________________________ A weak acid causes her issue. She ingested far too much aspirin, also known as acetylsalicylic acid, and ended up in the emergency room (ER). The pH range within which humans can survive is between pH 6.8 and about pH 8.0. The woman's pH is outside of this window. What do you think would have happened to her? __________________________________________________________________ __________________________________________________________________ Why, despite being nearly comatose, is she breathing rapidly and deeply when she arrives at the ER? __________________________________________________________________ __________________________________________________________________ Unfortunately, her breathing isn't doing much to help. Can you figure out why? __________________________________________________________________ __________________________________________________________________ What should she do to bring her blood pH back into the normal range? __________________________________________________________________ __________________________________________________________________ How is this going to help the poor woman? __________________________________________________________________ __________________________________________________________________ Is she suffering from metabolic acidosis or respiratory acidosis? Explain your answer. __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________

Preliminary:
When a solution turns pink with a phenolphthalein indicator, it means
the solution is
_. The pink solution was gently blown for about
2 - 3 minutes, and the solution turned colorless.
Phenolphthalein
(pH indicator)
1409 22
125
Phenolphthalein +
pH adjusted water
Jm.311
KER
color after CO₂
from breath
125 ml
15%

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