The different methods of measuring acids and bases in a solution By Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best
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INTERPRETATION OF RESULTS: This experiment circles around with the Newton’s second condition of equilibrium in rotational motion. It describes by net torque acting on a body which is zero. The ability of the body to rotate in a certain direction is varied according on how much torque is applied. To prove that‚ a beam that is subjected to two forces is balanced by adjusting the perpendicular distances. When applied force is weight‚ modification in masses added is also done. Once equilibrium is achieved
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frequency is varies‚ a power-converter is used in the experiment A power converter is power-electronics based device which can supple power with varied frequency. It first converts the normally available fixed frequency ac supply to a dc supply by using a rectifier. The dc supply is then converted to a variable-frequency ac supply‚ which can maintain a constant air-gap flux in the motor by an inverter. 2.3 Synchronous speed When the balanced three-phase currents flow through three-phase stator
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INTRODUCTION There are many reasons for knowing the identity of microorganisms. The reasons range from the knowing the causative agent of a disease to knowing the correct microorganism in order to make antibiotics. This study was done by applying the following methods; OF Glucose‚ Indole Production‚ and Malonate Utilization test for the identification of an unknown bacterium. The methods will assist in determining the unknown bacterium found in a 55 year old male that was passing blood and mucous
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AP Bio Block B Photosynthesis Lab 12/6/12 Introduction: Photosynthesis is affected by light intensity‚ water‚ and temperature. Plants grow more abundantly because the weather is warm. Carbon Dioxide given off by animals is consumed by plants that replace the oxygen animals take it. Experimentation will help understanding how plants are vital because of the oxygen they release. If leaf disks in the experiment release oxygen‚ they will undergo photosynthesis and float. If
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Due date: Wednesday‚ March 23rd. Do all of the following problems. Show your work. 1) Consider the cyclic molecule C8H8‚ the eight carbon analogue to benzene. a) Write the secular detrerminant corresponding to the pi-bonding in C8H8. b) Using the secular determinant‚ the following energies are found for the pi-bonding molecular orbitals: 1 = + 2 2 = + 1.41 (two states) 3 = (two states) 4 = - 1.41 (two states) 5 = - 2 Give the electron configuration for the
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Part 2: Safe work with large inductances 1. One of the main hazards of using inductances is electrical energy stored in the magnetic field. If a circuit containing an inductance is interrupted then the stored energy can release through air (forming an arc). This can destroy a switch contact‚ burn fingers‚ create other damage. In the circuit of Figure 1‚ show how to mitigate the risk (pay attention to polarity!). We give the elements in this circuit some simple values for the purpose of
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Title: Spectrophotometer and its function Name: Ooi Shu Chien Student ID: 00000014507 Objective: 1. To determine the wavelength of maximum absorption‚ Amax of bromophenol blue. 2. To construct a standard concentration curve for bromophenol blue. 3. To determine the concentration of the unknown bromophenol blue solutions. 4. To determine the concentration of two different solutes‚ bromophenol blue and methyl orange‚ in
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We labeled the test tubes with numbers one through five. The first test tube was our calibration tube‚ here we added one milliliter (mL) of buffer‚ four mL of distilled water and three drops of chloroplasts using pipets. After‚ we created the solution for the second‚ third‚ fourth and fifth test tubes by adding one mL of buffer‚ three mL of distilled water one mL of DPIP an 3 drops of chloroplasts. However‚ we decided that test tube number two was going to be the test tube that was
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choose. The study recruited HPS121 students to participate in a limited and extensive choice experiment in context to hotels. There were 661 participants‚ each chose one hotel and where then surveyed using six questions; three demographic and three in regards to difficulty‚ motivation and satisfaction using a 7-point Likert scale. The findings supported the hypothesis and were consistent with past research. Satisfaction and difficulty of choice showed a statistically significant difference with limited
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