1. Heartburn is typically caused by eating acidic foods or otherwise having conditions in the stomach that are too acidic. An antacid, such as calcium carbonate, is frequently used to counteract this, though burping is a frequent side-effect. Based on this description, what sort of reaction to you hypothesize what is taking place? a. Precipitation b. Redox c. Acid-Base d. Acid-Base and Gas Evolution |
1. Heartburn is typically caused by eating acidic foods or otherwise having conditions in the stomach that are too acidic. An antacid, such as calcium carbonate, is frequently used to counteract this, though burping is a frequent side-effect. Based on this description, what sort of reaction to you hypothesize what is taking place? a. Precipitation b. Redox c. Acid-Base d. Acid-Base and Gas Evolution |
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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Question
Transcribed Image Text:1. Heartburn is typically caused by eating acidic foods or
otherwise having conditions in the stomach that are too acidic.
An antacid, such as calcium carbonate, is frequently used to
counteract this, though burping is a frequent side-effect. Based on
this description, what sort of reaction to you hypothesize what is
taking place?
a. Precipitation
b. Redox
c. Acid-Base
d. Acid-Base and Gas Evolution |
2. Let us say we used iron to make the carbonate compound.
Which of the following formula/name combination is correct?
a. FeCO3, iron (II) carbonate
b. FeCO3, iron (I) carbonate
c. FeC, iron (II) carbonate
d. FeCO3, iron (II) carbide
3. Gastric juices in the stomach are mostly HCl. In a balanced
reaction with CaCO3, what would be the coefficient of HC1?
a. 1
b. 2
c. 3
d. 4
4. What are the electron configurations for atomic calcium and
the calcium ion, in that order?
a. 1s² 2s² 2p 3s² 3p6 4s²; 1s² 2s² 2p 3s² 3pº
b. 1s² 2s² 2p
3s²3p6 4s²; 1s² 2s² 2p6 3s² 3p6 4s² 3d²
c. 1s² 2s² 2p6 3s²; 1s² 2s²2p6
d. 1s² 2s² 2p 3s² 3p6 4s²; 1s² 2s² 2p 3s² 3p6 4s² 4d²
Transcribed Image Text:A drug is being prescribed to patients with a terminal condition;
they would otherwise die without this treatment. However, there
are severe side effects to taking it, which can include death. The
following plot shows the dose-response curve for the drug (solid
curve) indicating how effective the drug is at treating the
condition (its efficacy), and the curve of the rate of side effects
(dotted curve) as a function of the dosage. Pick the closest
answers for the following questions:
Incidece
100%
80%
60%
40%
20%
0%
a. 0.5
b. 1.1
0
c. 1.5
d. 2.5
Efficacy
0.5
1
a. 44 mg
b. 165 mg
c. 218 mg
d. 99 mg
Side Effects
1.5
2
I
1
1
I
I
1
I
I
I
1
I
I
Dosage (mg/kg/day)
2.5
5. Based on the above plot, what should the dosage be in mg of
drug per kg body weight per day?
3
3.5
6. If the patient weighs 145 pounds, what should their daily
dosage be? 1 kg = 2.2 pounds
4
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