Purpose: This experiment is used to perform a series of synthesis reactions that convert aluminum foil to alum. Alum is used in cooking‚ to treat wastewater‚ and is used in common deodorant. In this lab a series of four reactions will occur to yield alum. Calculations: Aluminum foil: 0.5035 grams Alum & Watch Glass: 21.7691 grams Watch Glass: 15.1560 grams Alum: 6.6131 gram Theoretical Yield of Alum: 2Al(s) + 2KOH(aq) + 4H2SO4 + 22H20 -> 3H2(g) + 2KAl(SO4)2 + 12H2O(s) 0.5035gAl
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Chris Simmons August 21‚ 2014 IS3340 Egon Week 3 Lab 1. Enforce Password. This makes it so you cannot use the same password more than once or more than 10 times‚ etc. When you change your password‚ it cannot be the password you were just using. 2. No. This stores plaintext password. This can be a risk. It’s default “disabled”. 3. Store passwords using reversible encryption is required for certain remote access protocols. It is also required to VPN in most cases. 4. To be more secure‚ of
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Questions and Problems: 1. Describe the type of meter movement used in analog meters. The current in the circuit is used in basic meters to measure the voltage drop or current in the circuit. The current passes through the coils of wires‚ which is then magnetized. Inside the apparatus‚ there is also a permanent magnet which opposes the magnetic field of the magnetized coil of wire that is connected to the pointer therefore‚ as we see in meters‚ the pointer moves. There is also a spring connected
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The purpose of Experiment 36 is to identify the anions present in an unknown solution based on the chemical reactions with various chlorides. In this experiment‚ Pb2+ was present in the unknown solution‚ while the presence Hg22+ is in doubt‚ and Ag+ is absent. To begin‚ the first part of the experiment involved analyzing the results from the experiment with the solution with equal volumes of AgNO3‚ Pb(NO3)2‚ and Hg2(NO3)2. Based on the results and observations obtained from the tests with the stock
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Ale_____ Ram___ 30 de noviembre de 2012 _______________ BIOL 3503 Ecología Laboratory #1: Communities and Biomes 1. List the fish and invertebrates you selected after the nitrogen cycling process. I personally selected a maroon clownfish with two anemones. I also chose 5 sergeant majors‚ 2 bleenies and a yellow tang. 2. What changes did you make to your reef tank during the 12 weeks and why did you make them? After I selected my fish‚ I noticed that the tank
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water‚ it will affect the swimming speed of the paramecium. The various students groups have individual experiment of how dose NaCl affect swimming speed of Paramecium‚ but the experiment did not show the result clearly to students. Therefore‚ after they finish the presentation‚ most of the students want to find out the chemical NaCl increases swim speed of Paramecium. Experiment Design The experiment prediction is if we add 4mL of Paramecium to 25mL of 0.2M NaCl and 225mL of Dryl’s solution‚ then Paramecium
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Michael Sherman Unit 3 Lab 1. What is the purpose of the address resolution protocol (ARP)? ARP translates IP addresses into physical addresses 2. What is the purpose of the dynamic host control protocol (DHCP)? DHCP eliminates the need to assign static IP addresses by allowing a server to assign addresses to devices as they connect to the network. 3. What is the purpose of the dynamic name service protocol (DNS)? DNS converts common domain names into IP addresses to route data to the correct
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EXPERIMENT 3: IDENTIFICATION OF FOOD CONSTITUENTS IN MILK. INTRODUCTION: In this experiment two milk samples are given and its compositions are tested using different methods such as using benedict solution to test the presence of reducing sugar‚ using copper II sulphate to test the presence of protein‚ using K3( to test the presence of fat. However in this experiment‚ not only are the milk tested for its composition‚ the amount of the particular substance such as reducing sugar‚ protein and
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Lab 3 1. The IIS7 web page appears. 2. The IIS7 web page appears. 3. The default web page for is set to be the IIS7 oage. 4. The detailed error 403.6 Forbidden is displayed. 5. The basic error 403.6 forbidden is displayed. 6. The IIS7 web page is displayed. 7. The error page remains. 8. This is because there is no DNS setup to establish the link between the local address and the address name. Computer Name IP Address Server05B 172.16.5.2 9. The IIS7 web page is displayed. 10. It will not connect
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The purpose of my experiment is to determine which temperature will allow Luminol to glow at its greatest capacity. My hypothesis is that the glow will illuminate for the longest time in a cold temperature because it will take longer to dissolve. I also predict that in the warmer temperature‚ the glow will be at it’s brightest. Luminol is a chemical‚ which exhibits chemiluminescence with a blue glow. It is a solid that is soluble in most polar solvents‚ but insoluble in water. Luminol is widely
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