전체 글222 [WEEK6] Stereoisomerism MINI LECTURES Isomerism -differ in how the atoms are connected => structural isomers -differ in how the connected atoms are arranged in space => stereoisomers *Stereoisomers -cis or trans geometric isomers -optical isomers (have the ability to rotate the plane of plane-polarised light) -Optical activity: the ability of a substance to rotate plane-polarized light to the right or left (Right: dext.. 2023. 3. 31. [WEEK5] Carboxylic Acids, Esters Mini lectures Carboxylic acid Esters Why esters are non polar????? Introduction of carboxylic acid Physical properties of carboxylic acid The relative high boiling points of carboxylic acids are due to intermolecular attractions resulting from hydrogen bonding. For example, the boiling point of ethanoic acid is 119 °C, higher than the boiling point of ethanol, 78 °C. as the length of the carbon .. 2023. 3. 30. [WEEK5] Lipids MINI LECTURE LIPIDS -SIMPLE LIPIDS ( triglycerol ) -COMPOUND LIPIDS ( phospholipid, sphingolypid, glycolipid ) -STEROIDS -MISCELLANEOUS LIPIDS SIMPLE LIPIDS -Example of eicosanoids : Thromboxanes : Prostacyclins : Prostaglandins : Leukotrienes -Eicosanoids do : blood clotting : increase in body temperature : coordinate HCl and mucous secretion : constriction of the bronchial tubes : stimulate an.. 2023. 3. 30. [WEEK5] Chemistry of Food -Fatty Acids https://youtu.be/GmNL2VErDAE -Triglyceride => fatty acid x3 + glyderol -Carbon chain : short (10) -Stearic acid (C18, saturated fatty acid) -Oleic acid (C18, monounsaturated fatty acid) -> good source of fat -Linoleic acid (C18, polyunsaturated fatty acid) -Saturated fatty acid can cause health issues -Coconut oil has a high ratio of saturated fatty acid, but is this considered a healthy source .. 2023. 3. 29. REACTION NOTES ALKANE ALKENE ALKYNE BENZENE ALCOHOL REACTION PREPARATION (SYNTHESIS) ETHER n THIOL ALDEHYDE n KETONE 2023. 3. 28. Lab 3 Glucose Concentration in Drinks Introduction Enzymes are biological, usually protein, catalysts that speed the rate of chemical reactions (by factors of up to 1017). They achieve this by lowering the activation energy required for the reaction to proceed. Enzymes react specifically with one or more substrates (S) to produce one or more products (P). Co-factors or Co-enzymes? Certain enzymes may require the presence of either c.. 2023. 3. 27. 이전 1 ··· 5 6 7 8 9 10 11 ··· 37 다음 반응형
