Experiment 10 – Enzymes Enzymes are proteins that act as catalysts for biological reactions. Enzymes‚ like all catalysts‚ speed up reactions without being used up themselves. They do this by lowering the activation energy of a reaction. All biochemical reactions are catalyzed by enzymes. Since enzymes are proteins‚ they can be denatured in a variety of ways‚ so they are most active under mild conditions. Most enzymes have optimum activity at a neutral pH and at body temperature. Enzymes are
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EXPERIMENT 1: THE HEAT CAPACITY RATIO FRANK KAYEYE 100886802 Purpose: The purpose of this experiment was to calculate the heat capacity ratio γ for three gases find in three different classes. The three different gases and their classes are; helium which is classified as a monatomic gas‚ nitrogen which
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Technology A.Y. 2012-2013 – 3rd Quarter Department of Physics Experiment 105 FRICTION Name: Alviar‚ Renée Hannah C. Program/ Year: AR – I Course Code/ Section: PHY10-2L – A2 Student No.: 2012170402 Group No.: 5 Date of Performance: February 18‚ 2013 Date of Submission: March 4‚ 2013 Instructor: Prof. Morris Martin M. Jaballas GRADE: DISCUSSION During Part A (Determination of the Coefficient of Friction) of this experiment‚ as we determine Wb and Wp‚ we are then able to calculate
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Kean Gerard Sumayo Experiment 1 APPLICATION OF STATISTICAL CONCEPTS IN THE DETERMINATION OF WEIGHT VARIATION IN SAMPLES I. OBJECTIVES 1. To determine the use of the different statistical concepts 2. To perform the proper applications of the statistical methods/ concepts on determining the weight variations of samples II. RESULTS and DISCUSSIONS A. Weight of Samples Ten 1-peso coins were used as samples for this experiment and were weighed carefully
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Data Table 1: Length measurements. Object Length (cm) Length (mm) Length (m) CD or DVD 12 cm 120mm 0.12 m Key 5 cm 50mm 0.01m Spoon 15cm 150mm 0.15m Fork 18cm 180mm 0.18m Data Table 2: Temperature measurements. Water Temperature (°C) Temperature (°F) Temperature (K) Hot from tap 42c 107.6f 315 k Boiling 99 c 210.0 f 372 k Boiling for 5 minutes 100 c 212 f 373 k Cold from tap 18 c 64.4 f 291 k Ice water – 1 minute 10 c 50 f 283 k Ice water – 5 minutes
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| Experiment 1 GASLAWS A. Combined Gas Law Temperature of Boiling Water in Kelvin (T1) | | Temperature of Cold Water in Kelvin (T2) | | Atmospheric Pressure in mm Hg (P1) | | Vapor Pressure of Water at T2 in mm Hg | | Final Pressure of Air in mm Hg (P2) | | Volume of Water Collected in the Flask in mL (Vwater) | | Initial Volume of Dry Air in mL (V1) | | True Value of the Final Volume of Air in mL (V2) | | Experimental Value of V2 in mL | | Percent Error | |
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Equipment: • 2.2 m Track- 1 pc • Plunger Cart- 1pc • Super pulley with clamp – 1pc • .500gram mass- 1pc • Stopwatch1- 1pc • Block ( to act as bumper)- 1pc • Beam Balance- 1 unit • String – 2m long • Set of Weights-1 set III. Data and Results Cart Mass Hanging Mass Trial1 Trial2 Trial3 Trial4 Trial5 Average Time 512g 13g 2.16s 2.15s 2.06s 2.0s 2.1s 2.09s 1016.5 27g 1.98s 2.11s 2.19s 2.09s 2.01s 2.08s Cart Mass Acceleration (m1+m2)a FNET=m2g %Error 512g 0.18m/s2 0.09N 0.12N 25%
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Theory The first experiment focused on the concept of errors and uncertainties that are obtained during measurements. For an experiment to be successful‚ especially those that involve measurements‚ the number of significant figures must be known. Significant figures are the digits required to express a measured quantity and thus reflect the accuracy of the measurement. Uncertainty is defined as the smallest increment that can be measured and is defined by the instrument used. An error is defined as
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Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid tablets was highlighted in this experiment. The efficiency of antacid tablets was determined and compared when the number of grams of HCl can be neutralized by 1 gram of the tablet was found. First‚ the two antacid tablets
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Biotechnology‚ Mapua Institute of Technology ABSTRACT In this experiment‚ solubility class of various organic compounds are to be determined. The main objective of the experiment is to identify an unknown compound through the use of preliminary tests such as examination of physical state‚ color‚ odor‚ and ignition properties. Also‚ solubility tests were used to further examine an unknown compound’s solubility class. In this experiment‚ the apparatus used are micro test tubes and droppers for mixing
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