SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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together. Cell membranes are also used as a gateway for waste projects that must be discharged and essential materials (oxygen‚ water‚ etc.) must enter through it. When a membrane is called semipermeable‚ it means that it will allow certain molecules or ions to pass through it by diffusion and occasionally specialized facilitated diffusion. When the cell membrane expends energy‚ it is known as active transport‚ or when the process is driven by kinetic energy‚ it is passive transport. Hypotheses Activity
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→Mn(OH)2 + H+ and is most stable in acid solutions. Manganese (III) is also slowly reduced by water.(Liptrot‚1993) 4 Mn3+ + 2 H2O → 4 Mn2+ + 4H+ + O2 Metal acetylacetonates are coordination complexes derived from the acetylacetonate anion and metal ions‚ usually transition metals. The ligand acetylacetonate is often abbreviated acac. Typically both oxygen atoms bind to the metal to form a six-membered chelate ring. The simplest complexes have the formula M(acac)3 and M(acac)2. Mixed-ligand complexes
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Cell Membrane Transport ZOOL 2011.19 A. Introduction: Cells are the most significant building blocks of all living things. They are also the tiniest living organisms in the human body which provides structure for the body and intake nutrients that become energy. Cell membranes control what goes in and out the cell‚ it protects it. The lipid bilayer describes the membrane of both animal and plant cells where the properties that make up phospholipids are very important
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determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined‚ and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-‚ and iodide ion‚ I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law‚ given this overall reaction‚ is: rate of disappearance of S2O82- = k[S2O82-]m[I-]n Chemical Kinetics is the chemistry of how fast or slow
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experiment we will be comparing the both SN1 and SN2 reactions using various compounds and sodium iodide and silver nitrate. We will be comparing the nature of the leaving group (Cl vs Br) in the 1-halobutanes as well as the effect of the structure of the compound. The effect of the solvent polarity and temperature will also be looked at. Name Structure M.W. M.P. B.P. Density Toxicity Sodium Iodide NaI 149.89 g/mol 661ºC 1304ºC 3.67 g/cm3 Yes Silver Nitrate AgNO3 169.87 g/mol 212ºC
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The excitation wavelength you would use to see the red fluorescence from PI would be around 480 to 570 nm. Propidium Iodide is considered to be autofluorescence in Texas-Red with chlorophyll at about 480 to 570 nm. The excitation/emission of Propidium Iodide is similar to chlorophyll and that of Texas-Red fluorochrome because they all fluoresce red. (e.) Concluding remarks section of the review paper by Giepmans (2008): “Exaggeratedly
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BIOLOGY 114 MOLECULAR AND CELL BIOLOGY PRACTICAL MANUAL DEPARTMENT OF MICROBIAL‚ BIOCHEMICAL AND FOOD BIOTECHNOLOGY FACULTY OF NATURAL AND AGRICULTURAL SCIENCES UNIVERSITY OF THE FREE STATE 2012 Lecturers Prof. E. van Heerden Room 8 Department of Microbial‚ Biochemical and Food Biotechnology Prof. J. Albertyn Room 51 Department of Microbial‚ Biochemical and Food Biotechnology Practical time table Week Week begin Tutorial Tutoriaal Prac. and lecturer Prak
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the majority of the agarose gel‚ thus providing sufficient time for separation. Air isn’t a great conductor of electricity‚ so we cover the gel with electrophoresis buffer. Electrophoresis buffer is a salt solution. It isn’t table salt‚ but the salt ions can carry an electrical charge just like salt water can. The salt in the electrophoresis buffer completes the circuit between the positive and negative electrodes. When the electrodes of the gel box are connected to a power supply‚
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were poured into the well plate and observed. These included sodium bicarbonate and hydrochloric acid‚ bromothymol blue and hydrochloric acid‚ ammonia and bromothymol blue‚ hydrochloric acid and blue dye‚ blue dye and sodium hypochlorite‚ potassium iodide and lead nitrate‚ sodium hydroxide and phenolphthalein‚ hydrochloric acid and phenolphthalein‚ sodium hydroxide and sliver nitrate‚ ammonia and silver nitrate‚ and ammonia and copper (II) sulfate. Some mixtures were also placed in the light or mixed
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