Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 30, Problem 30.65P
Interpretation Introduction
Interpretation:
The reason for caffeine used as an ergogenic food and the disadvantage of using caffeine should be determined.
Concept Introduction:
- Ergogenic food: Those substances that enhances the performances of an athlete.
- Caffeine: Caffeine is a chemical compound which stimulates the central nervous system thereby giving energy to the body. The fatigue or tiredness in our body is caused due to the presence of adenosine, so the caffeine blocks the adenosine and prevents tiredness from our body.
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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2
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1) HBr
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2) H-
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2024 Fall Term (1) Organic Chemistry 1 (Lec)
CHEM 22204 02[6386] (Hunter College)
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alt
ons for
Free Response Questions
FRQ 1:
0/5
To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and
some inert materials, solutions with known [Co?) are prepared and absorbance of each of the
solutions is measured at the wavelength of optimum absorbance. The data are used to create a
calibration plot, shown below.
0.90-
0.80-
0.70
0.60
0.50
0.40-
0.30
0.20-
0.10-
0.00-
0.005
0.010
Concentration (M)
0.015
A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted
with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to
Co2+(aq).
a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74?
13
✗
b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution.
0.008 mols Co
Please correct answer and don't used hand raiting
Chapter 30 Solutions
Introduction to General, Organic and Biochemistry
Ch. 30 - Are nutrient requirements uniform for everyone?Ch. 30 - Is banana flavoring, isopentyl acetate, a...Ch. 30 - If sodium benzoate, a food preservative, is...Ch. 30 - Prob. 30.4PCh. 30 - Prob. 30.5PCh. 30 - Prob. 30.6PCh. 30 - Prob. 30.7PCh. 30 - Can a chemical that, in essence, goes through the...Ch. 30 - Prob. 30.9PCh. 30 - Prob. 30.10P
Ch. 30 - Prob. 30.11PCh. 30 - Prob. 30.12PCh. 30 - Prob. 30.13PCh. 30 - Humans cannot digest wood; termites do so with the...Ch. 30 - Prob. 30.15PCh. 30 - Prob. 30.16PCh. 30 - Prob. 30.17PCh. 30 - Which nutrient provides energy in its most...Ch. 30 - Prob. 30.19PCh. 30 - Prob. 30.20PCh. 30 - Prob. 30.21PCh. 30 - Prob. 30.22PCh. 30 - Is it possible to get a sufficient supply of...Ch. 30 - Prob. 30.24PCh. 30 - Prob. 30.25PCh. 30 - 30-26 Which one will be digested faster: (a) a raw...Ch. 30 - Prob. 30.27PCh. 30 - Prob. 30.28PCh. 30 - Prob. 30.29PCh. 30 - Prob. 30.30PCh. 30 - Prob. 30.31PCh. 30 - Prob. 30.32PCh. 30 - Prob. 30.33PCh. 30 - Prob. 30.34PCh. 30 - Prob. 30.35PCh. 30 - Prob. 30.36PCh. 30 - What are the nonspecific effects of vitamin E, C,...Ch. 30 - Prob. 30.38PCh. 30 - Prob. 30.39PCh. 30 - Prob. 30.40PCh. 30 - Prob. 30.41PCh. 30 - Why would many athletes believe that taking large...Ch. 30 - Prob. 30.43PCh. 30 - (Chemical Connections 30A) What is a...Ch. 30 - Prob. 30.45PCh. 30 - Prob. 30.46PCh. 30 - Prob. 30.47PCh. 30 - Prob. 30.48PCh. 30 - Prob. 30.49PCh. 30 - Prob. 30.50PCh. 30 - Prob. 30.51PCh. 30 - Prob. 30.52PCh. 30 - Prob. 30.53PCh. 30 - Prob. 30.54PCh. 30 - Prob. 30.55PCh. 30 - Prob. 30.56PCh. 30 - Prob. 30.57PCh. 30 - Prob. 30.58PCh. 30 - Prob. 30.59PCh. 30 - Prob. 30.60PCh. 30 - Prob. 30.61PCh. 30 - Prob. 30.62PCh. 30 - Prob. 30.63PCh. 30 - Prob. 30.64PCh. 30 - Prob. 30.65PCh. 30 - Prob. 30.66PCh. 30 - Prob. 30.67PCh. 30 - Prob. 30.68PCh. 30 - Prob. 30.69PCh. 30 - Prob. 30.70PCh. 30 - Prob. 30.71PCh. 30 - Prob. 30.72PCh. 30 - Prob. 30.73PCh. 30 - Prob. 30.74PCh. 30 - Prob. 30.75PCh. 30 - Prob. 30.76PCh. 30 - Why is it necessary to have protein in our diets?Ch. 30 - Prob. 30.78PCh. 30 - Prob. 30.79PCh. 30 - Prob. 30.80PCh. 30 - Prob. 30.81PCh. 30 - Prob. 30.82PCh. 30 - Egg yolk contains a lot of lecithin (a...Ch. 30 - Prob. 30.84PCh. 30 - Prob. 30.85PCh. 30 - Prob. 30.86P
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