Pre Lab Experiment 8 DETERMINATION OF % COMPOSITION OF PENNIES USING REDOX AND DOUBLE DISPLACEMENT (PRECIPITATION) REACTIONS Objectives: 1. Learn how to determinate the percent composition 2. Learn how to get the percent using oxidation reduction and double reactions 3. To become more familiar with the use titration techniques 4. To learn how to get the salt out of an quimical Background: To develop and utilize procedures to determine the percent composition‚ of ZnCI2. As well titrating
Premium Chemistry Titration Concentration
Solub. Or Reaction w/ hot H20: Solution turns green. Litmus test: No reaction Dilute HCI: Dissolves turns green and a bit gelatinous. Dilute NaOH: Did not dissolve immediately‚ but after a few minutes it becomes a blue liquid. Substance: NaCl Color: White Odor: Yes Effect of Heat: Boils Solub or Reaction w/ cold H2O: No reaction Solub or Reaction w/ hot H2O: No reaction Litmus test: No reaction Dilute HCI: Does not dissolve Dilute NaOH: Does not dissolve Questions: 1. Did you observe
Premium Chemistry Chemical reaction Hydrogen
Gun Control Is Needed Regulation of guns is a necessary action that needs to be taken in order to save lives. A good definition of gun control is needed to understand the sides and issues. Gun control is an effort to stop the rise in violent crime by strengthening laws on the ownership of firearms. Persons in the group against gun control believe that gun control is wrong‚ and that it is a violation of constitutional rights. Those in favor of gun control believe that gun control is good
Premium Firearm National Rifle Association Gun politics in the United States
translucent green. Blue coloration turned to green and finally moderate amount of brick red precipitate suspended in solution. The solution was opaque. 2 10 ml solution B 3 M HCI 37 The blue coloured solution remains unchanged. The blue coloured solution remains unchanged. 3 10 ml solution B 3 M HCI 95 White coloured translucent suspension formed in moderate amount. A very big amount of white suspension formed which is very opaque. Turned back into translucent and
Premium Starch Enzyme Amylase
Data Table 1: Reactions Expected | Well #/ Question | Chemicals | Reaction | A | NaHCO3 and HCI - C02 | The mixture didn’t look any different amongst the contrast of each colored background. | B | HCI and BTB | The mixture is orange. The color doesn’t change amongst the contrast of each colored background. | C | NH3 and BTB | The mixture is blue. I expected the mixture to turn orange | D | HCI and blue dye | The mixture is green. | E | Blue dye and NaOCI | Prior to adding the HCl the
Premium Chemical reaction Green Blue
the designer to design better interfaces. A. True B. False 3. We can only focus our attention on one thing at a time. A. True B. False 4. Which of the following fields is not an influence on HCI? A. cognitive psychology B. ergonomics C. computer science D. All of the above 5. The goals of HCI are: A. Usability and User Experience B. Task and Goals C. Usability Experience and Goals D. All of the above 6. ___________ is a very general goal of Usability and refers to
Premium User interface
Television Remote Control by Hand Gesture Name ID A.K.M Ahsanuzzaman 11-18642-1 Saikat Acharjee 11-18028-1 Pulak Barua 11-18778-1 Partha Pratim Barua 11-18070-1 Md Nishadul Hoque Shah 11-18774-1 Contents Introduction HCI Methods Gesture Recognition Wand Filter Module Pixel Filters Finding Coordinates Gesture Generator Module Gesture to Command Conclusion Introduction With the development of technology‚ television has evolved to a great extent with its high definition audio
Premium Gesture Infrared Gestures
Title: Preparation of Solutions and Buffers Objectives: 1. To learn and understand the theory‚ principle and formula behind buffers and solutions preparation. 2. To learn the methods for buffers and solutions preparation. Introduction: (Wikipedia‚ 2013) Solute is a substance dissolved in another substance. Solvent is a substance in which the solute is dissolved by it. Solution is a mixture of two or more substances. The amount of solute dissolved in a solvent is called concentration
Premium Sodium hydroxide Solution Concentration
water • 1M HCI • 2 Large marble chips • 4-5 Small marble chips • 1x Stopwatch • 1x Black card with blue tack Method: Step 1- Arrange test tubes and delivery tube. Step 2- Arrange black cardboard behind the rack (this is to provide a contrast to the reaction) Step 3- Fill the unstoppered test tube with lime water‚ making sure to fully cover the end of the delivery tube. Step 4- Place the small marble chips in the other test tube‚ pour on a small quantity of HCI. Step 5- Quickly
Premium Calcium carbonate Carbon dioxide Limestone
Proposed system process view a) Provide a flowchart of the proposed process. 8) Functional allocation modeling a) Specify how each proposed system function would be allocated in terms of required hardware‚ software‚ and Human-Computer Interface (HCI). 9) Logical system model a) Provide a high-level logical data flow diagram of the proposed system. 10) Preliminary design model a) Provide a diagram illustrating the overall logical information architecture. 11) Design trade-off approach
Premium Requirement Requirements analysis Design