Kimya Ödev Yardımı

QuetionAI‘nin kimya problemi çözücüsü, temel kimyasal reaksiyonları ve denklemleri kullanıcılar için gerçek zamanlı olarak özetleyebilen ve zayıf bir temele sahip öğrencilerin bile kimyada kolayca uzmanlaşabilmesi için güçlü bir öğrenme sistemine sahip olan bir ortaokul kimya ders aracıdır.

Artık periyodik tablonun temel özellikleri hakkında endişelenmenize gerek yok. Burada her elemente karşılık gelen kimyasal reaksiyonlara ve reaksiyon prensiplerine kolaylıkla ulaşabilirsiniz. Moleküllerin ve atomların orijinal yapısını, görülebilen makroskobik olaylardan çıkarmak, her zaman savunduğumuz bir kimya araştırma tekniğidir.

1. Cu+HNO_(3)arrow Cu(NO_(3))_(2)+NO+H_(2)O Yukaridaki redoks tepkimesi en kũçũk tam saylarla denkleştirildiginde H_(2)O' nun katsayisini bulunuz.

2. Zn_((suda))^2++2e^-arrow Zn_((k)) E^circ =-0,76V Ag_((suda))^++e^-arrow Ag_((k)) E^circ =+0,80V Bilgilerine gõre; I. 1MZn^2+ ve 1MAg^+ için E_(pil) değeri kaçtir? II. 0,01MZn^2+ ve 1MAg^+ icin E_(pil) değeri kaçtir? III. 1MZn^2+ ve 0,01MAg^+ icin E_(pil) değeri kaçtir? (E_(pil)=E_(pil)^circ -(0,06)/(n)cdot logQ_(c)) __ II III

i. Acid catalyzed Hydration (Markovnikov) of propyne. ii. Esterification reaction iii. Ethylamine with HCL iv. Hydrogenation of alkenes 2a. Define the term "amphipathic' compound (1 mrks) b. Elucidate the variation of pH with temperature (2 mrks) c. State two thermodynamic quantities that contribute to the value for Delta G (2 mrks) d. Sketch a titration curve for acetic acid with a strong acid (3 mrks) 3a. Outline the biochemical roles of integrins b. State examples of primary active transport in the biological membrane (4 mrks) (4 mirks) 4a. Define the terms below in relation to enzymes (2 mrks) i. Substrate ii. Holoenzyme b. Illustrate the following concerning enzyme activity i. Allosteric regulation of enzymes activity (3 mrks) ii. pH dependency (3 mrks) 5a. State the general properties of nucleic acids (4 mrks) b. Draw a well -labelled diagram of the structure of eukaryotic mRNA molecule (4 mrks) SECTION C: LONG ANSWER QUESTIONS (40 MARKS).QUESTION ONE:IS COMPULSORY, THEN CHOOSE EITHER QUESTION 2 OR 3. 1. Biological functions of a protein depend on the conformational changes of its structure. Discuss the four structural levels of proteins (20 mrks) 2. Glycolipids is one of the different types of lipids with significant biochemical functions in human being Discuss the structures and biochemical roles of the two major classes of glycolipids (20 mrks) 3. Cellulose and glycogen are two major examples of homopolysacch arides. Discuss their structure in relation to their biological functions in living organisms

1a. Draw the structures of the following organic compounds i. 2 Ethyl-1 -pentene ii. 2 Methyl-2-propanol iii. Diethyl ether iv. 4 Methyl pentanal

11. Which of the following terms best describes the compound below? CH_(3)(CH_(2))_(7)CH=CH(CH_(2))_(7)CO_(2)H A. An unsaturated fatty acid B. A triglyceride C. A synthetic detergent D. A micelle E. A glycerol 12. __ and __ are two polysaccharides that common glycosidic linkage types A. Cellulose and amylopectin B. Amylose and glycogen C. Amylose and cellulose D. Glycogen and amylopectin E. Dextrin and chitin 13. In mammals, the major fat in adipose tissues is __ A. Phospholipid B. Cholesterol C. Sphingolipids D. Triacylglycerol E. Phosphoinositols 14. Two sugars which differ from one another only in configuration around a single carbon atom are termed __ A. Epimers B. Anomers C. Optical isomers D. Stereoisomers E. Enantiomers 15. The carbohydrate of the blood group substances is __ A. Sucrose B. Fucose C. Arabinose D. Maltose E. Galactose 16. __ and __ are the repeating units of hyaluronic acid A. N-acetyl glucosamine and D-glucuronic acid B. N-acetyl galactosamine and D -glucuronic acid