Quan Chapter 15: Redox Titrations 1. (A) Which of the following is true of a redox titration? (i) Since the redox reaction is spontaneous‚ the equilibrium constant does not have to be large for an effective titration. (ii) The titration effectiveness is increased when the two half-reaction potentials are far apart. (iii) Without an indicator the equivalence point cannot be detected. (iv) For an effective redox titration‚ the reducing agent must always be in the buret. (v) The equivalence
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DISCUSSION Table 1. Theoretical and experimental value of moisture content in Tofu. Theoretical Value of Moisture Content in Tofu | Experimental Value of Moisture Content in Tofu | 84.20% to 85.65% | 81.65 % | From the result‚ moisture content in tofu samples is around 81.65 %. From references‚ the moisture content of tofu samples from 84.20% to 85.65%. (Wang et al‚ 1983) The difference value of this moisture content may be caused of the error during the experiment such as the
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Bio Study Guide EXAM 1 Chapter 1 Characteristics of living things (know the 7 characteristics) 1. Order 2. Regulation- controlling body temp 3. Contain DNA- evolution 4. Energy Processing – food 5. Response to the environment- adapting 6. Growth and development 7. Reproduction Classification of organisms (D.K.P.C.O.F.G.S) Domain‚ Kingdom‚ Phylum‚ Class‚ Order‚ Family‚ Genus‚ Species Prokaryotes vs. Eukaryotes (know differences) Prokaryotic cells: DO NOT have a nucleus but DOES
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Photosynthesis 1. Describe the energy transformation that occurs in photosynthesis. Solar energy to chemical energy specifically stored in sugar. SolarChemical energy (sugar) 2. Write the summary equation of photosynthesis. Solar + 6CO2 +6H2O C6H12O6+6O2 (simple) Complex 3. Photosynthesis produces organic sugar molecules. Where does the carbon come from in making the sugars? From carbon dioxide 4. Aerobic cellular respiration is catabolic‚ exergonic and oxygen requiring. What
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carbon dioxide‚ water and energy. Neutralization reactions: Involves the reaction of an acid and base to produce water as a salt. This reaction only occurs within cells and in the human stomach’s intestines. 4a. The substance being oxidized is C of C6H12O6. b. The substance that is reduced is O2 Lesson 2 Key Questions: 5. Carbohydrates- Monomer: monosaccharide Functional group- aldehydes or ketones Linages- glycosidic bond Major Function: act as energy source‚ and structural purpose (cell
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quantity‚ (2) living cells do not work with volumes of substances‚ or even masses of substances. The chemical reactions that occur in the cell are based on molecules (or Avogadro’s number of molecules‚ which is the mol). Think of respiration: C6H12O6+ 6O2 → 6H2O + 6 CO2 The cell uses one molecule (or one mole) of glucose and six molecules (or moles) of oxygen to produce six molecules (or moles) of water and six molecules (or moles) of carbon dioxide. It does not use one g (or litre) of glucose
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Biology Honors Final Exam Review Study Guide A. Intro Unit * Characteristics of life (DR.CHARGE) * DNA * Directs protein synthesis * Reproduce * Divides in mitosis (asexual reproduction) * Cells * Homeostasis * The process by which cells maintain constant internal condition (water‚ temperature) * Adaptation (Evolution) * Respond to stimulus * Growth (Development) * Energy * Heterotroph: an organism that cannot synthesize its own food
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Maintaining a Balance 1. Most organism are active in a limited temperature range The role of Enzymes in metabolism‚ their chemical composition and specificity on substrates Role of enzymes * Enzymes are organic catalysts. They are protein molecules that increase the rate of the reactions in living organisms. * Without enzymes‚ metabolic reactions at body temperatures would be too slow to produce sufficient energy to maintain life * Intracellular enzymes are used in the cells
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Seven characteristics of life In life‚ there are seven different characteristics these being; movement‚ excretion‚ respiration‚ reproduction‚ irritability‚ nutrition and growth. Below‚ I will explain each of the characteristics in detail. Reproduction means; “the production of offspring by a sexual or asexual process” (oxford concise colour medical dictionary‚ 2007). Animals and plants do this in different ways‚ animals need two parents‚ and therefore the offspring will share both of the parent’s
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Distillation of Alcohol Beverages Abstract Distillation is a process wherein a liquid is heated until its boiling point while the resultant hot vapors are subsequently captured and cooled‚ and the condensed vapors are collected. Among the many types of distillations‚ the fractional method or technique of distillation was used in this experiment. A step by step procedure was followed and an amount of 3.33 % of ethanol was obtained from the sample wine‚ Mateus Rose‚ which was used. Further
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