Photosynthesis is the process of converting light energy to chemical energy and storing it in the bonds of sugar. This process occurs in plants and some algae (Kingdom Protista). Plants need only light energy‚ CO2‚ and H2O to make sugar. The process of photosynthesis takes place in the chloroplasts‚ specifically using chlorophyll‚ the green pigment involved in photosynthesis. Photosynthesis takes place primarily in plant leaves‚ and little to none occurs in stems‚ etc. The parts of a typical leaf
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Determining the unknown concentration of HCl via heat of neutralization of a reaction involving strong electrolytes and weak electrolytes. Myeongwon Lee 20522885 Partner: Frank Wong TA: Afsoon CHEM 120L – Earth Science & Chem 149 Section: 004 Tuesday‚ November 26th‚ 2013 Introduction All chemical changes are accompanied by change in energy and this energy is in form of heat. The energy change of a reaction that happens at constant pressure is defined as heat of reaction or enthalpy change and the
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example‚ Putnam describes ‘Twin Earth’ as a place that is essentially a duplicate of earth. Everything on this Twin Earth is the same‚ except for the molecular structure of its water. Instead of its water having a chemical structure that consists of H2O‚ its chemical structure is XYZ. Although it does contain the same superficial characteristics of water‚ Putnam theorizes that this XYZ ‘water’ is not the same as the water here on earth. Thus‚ Putnam draws his first conclusion. He concludes that the
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was diluted 1 to 11 and the concentration was 1ug in 5ul 2. 1ul of previous dilution in 9ul H2O > 0.01ug DNA in 5ul 3. 1ul of previous dilution in 9ul H2O > 0.001ug DNA in 5ul 4. 1ul of previous dilution in 9ul H2O > 0.0001ug DNA in 5ul 5. 1ul of previous dilution in 9ul H2O > 0.00001ug DNA in 5ul To make my DNA sample I used dilutions: 1. 1 to 10 2. 1 to 100 The master mix : Nuclease free H2O 19ul 2x SYBR Mastermix with polymerse 25ul L primer (100pM/ul) 0.5ul R primer (100pM/ul)
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THE MOLE CONCEPT References : Mohammed and Lambert ( Old Edition) Chapter 11 pg. 107 Mohammed and Lambert ( New edition) Chapter 8 pg 123 Anne Tindale Chapter 10 pg 46 The following topics will be covered : 1. Definition of Relative Atomic and Relative Molecular Masses. 2. Calculation of Relative Molecular Masses 3. Converting Moles to Grams / Grams to Moles 4. Calculation from equations Masses of substances /Volumes of gases / Concentration
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thermal energy of atoms‚ molecules ‚or ions at the submicroscopic level Kinetic energy is often expressed by common unit of energy‚ that is by calorie (cal) 1 calorie is the amount of energy needed to raise the temperature of one gram of water‚ H2O‚ by one oC. 1 cal = 4.184 J Potential energy‚ Ep:
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Experiment IV Solubility of Dissolved Oxygen Purpose To demonstrate the effect of partial pressure‚ temperature and salinity on the solubility of dissolved oxygen and to demonstrate the interference of nitrite in dissolved oxygen analysis by the Winkler Method. To demonstrate the use of the oxygen electrode and the difference between activity and concentration. References 1. Mancy‚ K. H.‚ Jaffe‚ T.‚ "Analysis of Dissolved Oxygen in Natural and Waste Water‚" USDHEW Public Health Service
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Laboratory Experiment No. 1: Common Laboratory Procedures Objective In this experiment‚ the objectives were to use a balance and measure the volume of the liquids. Theory In the experiment‚ three calculations were used. These are the density‚ relative error and the standard deviation. Density is refers to the mass (m) per unit volume (V) of a material and is often represented by the symbols d or ρ‚ where d = m/V. The density of an object changes with pressure and temperature. Second‚
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Dilute NaOH: Dissolves and substance became a bit thick Substance: CuCO3 Color: Green Odor: Yes Effect of Heat: Turned into black powder Solub. or Reaction w/cold H2O: No reaction. Solub. or Reaction w/hot H2O: No reaction Litmus test: No change on blue or red. Dilute HCl: Bubbles up‚ does not dissolve‚ solution turns green Dilute NaOH: Turns navy blue Substance: Cu(NO3)2 Color: Blue Odor: Slight Odor Effect of Heat: Dissolves
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fumbles the ball‚ H2O recovers for 6 and the extra-point is good‚ H2O is up 14-3. Lithium returns the kick off for a huge 63 yard return. They finish the second quarter with a touchdown pass and go for 2 and make it in. The score is 14-12‚ H2O is still on top. H2O didn’t make it in the end zone but make a 46 yard field-goal so the score is now 17-11. Lithium couldn’t score before the half. Since Lithium chose to receive on the coin toss‚ H2O gets it to start the second half. H2O fails to score on
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