8. Dopamine is a neurotransmitter (chemical messenger) between nerve cells. Deficiency of dopamine results in Parkinson's disease. Administration of dopamine does not stop the symptoms of this disease because dopamine in the blood cannot cross the blood-brain barrier. The drug Dopa, however, does give relief from Parkinson's symptoms. It can pass through the blood brain barrier and is converted by enzymes inside brain cells to dopamine: но- poOH -CH2CHNH2 HO ÇOOH CO2 HO но- -CH2CH2NH2 Dopa Dopamine This reaction is an example of O acid - base reaction G addition 6 substitution elimination

8. Dopamine is a neurotransmitter (chemical messenger) between nerve cells. Deficiency of dopamine results in Parkinson's disease. Administration of dopamine does not stop the symptoms of this disease because dopamine in the blood cannot cross the blood-brain barrier. The drug Dopa, however, does give relief from Parkinson's symptoms. It can pass through the blood brain barrier and is converted by enzymes inside brain cells to dopamine: но- poOH -CH2CHNH2 HO ÇOOH CO2 HO но- -CH2CH2NH2 Dopa Dopamine This reaction is an example of O acid - base reaction G addition 6 substitution elimination

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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answer #3
1. You are a chemical engineer that is responsible for synthesizing a new drug. You look at a series of potential chemical reactions that will make your drug along with their respective K values. What type of K value would you be looking for and why?
Silver chloride (MM = 143.32 g/mol) has a Ksp of 1.7 x10-10. If 95.7 g AgCl is stirred into 26.94 L H2O, how many milligrams of silver chloride will dissolve? Report your answer to the nearest whole number.
answer #2
Which one of these reactions would be best classified as irreversible? a) FeCO3(s) ⇌ Fe2+(aq) + CO32-(aq) K = 2.1 × 10-11 b) HC2H3O2(aq) + OH-(aq) ⇌ C2H3O2-(aq) + H2O(l) K = 1.8 × 10^9 c) Fe3+(aq) + SCN-(aq) ⇌ FeSCN2+(aq) K = 215 d) 2SO2(g) + O2(g) ⇌ 2SO3(g) K = 4.32
What is the relationship between △G△Go and Keq for the following equilibrium?
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answer #9
Choose the correct relationship between Kc and Kpfor:2 NF3(g)N2(g) + 3 F2(g) Kp = Kc(RT)-2 Kp = Kc(RT)1/2 Kp= Kc-2 Kp = Kc(RT)2
The following reactions all have K < 1.1) HCOO- (aq) + C6H5COOH (aq) HCOOH (aq) + C6H5COO- (aq)2) NO2- (aq) + C6H5COOH (aq) C6H5COO- (aq) + HNO2 (aq)3) HCOOH (aq) + NO2- (aq) HNO2 (aq) + HCOO- (aq)Arrange the substances based on their relative BASE strength. HNO2 NO2- C6H5COO- C6H5COOH HCOO- HCOOH strongest base intermediate base weakest base not a Bronsted-Lowry base