Lab Exercise 2.03: Recognizing External Connections Is it possible to plug any cable into the wrong connector? If so‚ which one(s)? What do you think would happen if you plugged something into the wrong connector? Answer- Yes‚ the mouse and keyboard connectors. If they plug into the wrong connector‚ the device will not work. DATA-CABLE from printer to the PC (both ends) End 1 (PC) USB End 2 Parallel Port Male or Female: Male End 2 Female Number of Pins: 25 Data cable from the keyboard
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First‚ the buffer was prepared by using the formula as follows: Figure 1: Calculation for prepare 0.1 M potassium phosphate buffer at pH 6 3.4007g of potassium phosphate was weighed and placed in 300 mL beaker. Then‚ 125 mL of water was added into the beaker that contained potassium phosphate. The mixture was dissolved using the stirring rod‚ and then the magnetic stirring bar was placed in the beaker for further dissolve when measuring the pH. The pH meter was used to measure the solution
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pH‚ Phosphates (Po4)‚ Turbidity‚ Temperature (Temp) and the Flow Rate‚ contrasted to the weather for the day. Macroinvertebrates were collected and identified before being released. E. Coli tests were taken and analyzed during this period. Data was collected for 14 days‚ from March 22nd to April 19th. Tests were collected at 35.540477 degrees North‚ 82.630827 degrees West. These trials were conducted for one reason: to test the health of Hominy Creek. The indicators of Nitrates‚ Phosphates‚ PH‚
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Bio 104-03 Lab #3- Acids Bases‚ and Buffers 1. An acid is a substance that releases hydrogen ions as they desolve in water and ranks lower than seven on the pH scale. An example of an acidic substance is lemon juice. A base is a substance that accepts hydrogen ions and ranks higher than seven on the pH scale. An example of a base substance is hand soap. A neutral substance ranks a seven on the pH scale and has equal concentrations of H+ and OH-. An example of this is pure water. Electrolytes
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results of Gel Filtration Chromatography Eluate Component Volume collected in mL First Blue dextrin 3.00 Second Brown cytochrome 7.00 Third Clear phosphate buffer 5.00 Table 5: The result of Electrophoresis of Amino Acids Distance moved (+/-) cm Amino acid 10% Acetic acid Phosphate NH4OH Glycine -6.0 -3.2/+3.0 +9.0 Lysine -7.0 -2.0/0 +3.7 Glutamic acid -4.5 -3.2/+3.0 +5.0 SAMPLE CALCULATIONS: (1) Protein concentration
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Historical Account of the Industry 1.1 When and how did it start in the Philippine Setting? The National Water Resources Board (NWRB) was created in 1974 as the authoritative national organization to coordinate and integrate all activities in water resources development and management. Its main objective is to achieve scientific and orderly development and management of all the water resources of the Philippines consistent with the principles of optimum usage‚ conservation and protection to meet
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Stoichiometric Analysis Formal Lab Report I. Purpose- The purpose of this lab is to show stoiciometric reactions and relationships first hand. It also increases our level of understanding about the complicated relationships in chemical reactions and in stoichiometry. II. Introduction- In chemical reactions and formulas there are various relationships between masses of reactants and products. The study of these relationships is called stoichiometry which is derived from the Greek words stoichein
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Water resources are sources of water that are useful or potentially useful. Uses of water include agricultural‚ industrial‚ household‚ recreational and environmental activities. Virtually all of these human uses require fresh water. 97% of the water on the Earth is salt water. However‚ only three percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps.[1] The remaining unfrozen freshwater is found mainly as groundwater‚ with only a small fraction present
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Uses of water: 1. For drinking and for life processes. On an average‚ a man consumes about 60‚000 to 80‚000 litres of water in his lifetime. The body of an adult contains nearly 40 to 50 litres of water at any given time and water constitutes about 66% of the average body make up. Aqueous solutions fill the cells in the body. Nutrients‚ oxygen‚ and metabolic waste products are transported by blood‚ which is mostly water. Digested food is absorbed in the form of an aqueous solution. In plants too
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Water conservation refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning‚ manufacturing‚ and agricultural irrigation. Water conservation programs are typically initiated at the local level‚ by either municipal water utilities or regional governments. Common strategies include public outreach campaigns‚ tiered water rates (charging progressively higher prices as water use increases)‚ or restrictions on outdoor water use such as lawn watering
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