In this step, as we watched the chemical reaction with the solids, we noticed a thinning in the substance. Also, the solids became lighter and moved to the top. When stirred, the solution began to turn green and then back to light blue, where copper began in the end of the first step. A combination reaction took place, and the balanced equation is: CuOs+H2SO4aq→CuSO4aq+H2O(I) Following this step, step 5 began, in which we added 300 mg of zinc to the solution. Once the zinc was added slowly to the solution, a gas was released and the solution began to change colors.
Results and Discussion For the first part of the experiment (Part A), five different 100 mL volumetric flasks were each filled with 1,2,3,4 and 5 mL of iron (II) solution. Then 5 mL of YY ligand, were poured to each of the five flasks. Each flask had 5 mL of 2M sodium acetate and 4 mL of 3M NH2OH. Then the whole solution was diluted up to the 100 mL fill mark with distilled water. This was the solution that was used in order to obtain the absorption spectrum for each of the different iron (II) ligand examples different flasks.
Twenty drops of bromothymol blue was also added to the 150mL beaker. The pH was then obtained using the Vernier pH probe and it read 6.68. The 5mL pipet was then used to transfer 5mL of the green solution to the three 50 mL beakers. A 100mL beaker was obtained and filled with 1.0 M HCl solution and the pipet was used to acquire 1mL of the 1.0 M HCl solution. The 1mL of HCl was then transferred to one of the 50mL beakers turning the color of the solution to yellow.
Both flask’s pH went up 4. Which substance, water or the buffer does a better job of maintaining pH when small amounts of strong base are added? Water does a better job at maintaining pH under these circumstances, but only slightly 5. Write equations for the reactions taking place in each of the flasks. For an equilibrium arrow ( ) is an equals sign (=) (Unless you know how to do equilibrium arrows).
To help your teacher know whom the essay came from, save the file as: GEN1 S2 COMP 6.11 Research Paper First Draft_FIRST INITIAL_LAST NAME.doc Example: GEN1 S2 COMP 6.11 Research Paper First Draft_M_Smith.doc Type your paper in the document you create. When you are ready, turn in your draft to your teacher. • The recommended length requirement for this paper is 3–6 pages (900–1,800 words),
LIGHT WORKSHEET, WAVELENGTH, FREQUENCY AND ENERGY Name___________________________ Date___________________ Period_______ Useful Information You May Need: Red 700 650 nm ______________1. Which has the greater blue or indigo light? (blue) Orange 649 580 nm Yellow 579 575 nm Green 574 490 nm ______________2. Which has the greater red or yellow light? (yellow) Blue 489 455 nm Indigo 454 425 nm ______________3.
Once it cooled down it became a purplish black color. Part 2 The unknown hydrate was first a blue powder. Starting at 75C there was barely an white edge. But as the temperature increased to 275C the blue became lighter and lighter, until there was barely any blue left. Results and
Turn the assignment in by the due date to receive full credit. Your project will be evaluated against a grading rubric. A copy of the rubric is included in the lesson. Read over the rubric before you submit your final draft to your teacher. The Taking a Test?
ISCOM 305 UOP Course Homework Aid (Systems Operations Management) Complete Course Week 1-5 All ASsignments and DQs Download Here: http://homework-aid.com/ISCOM-305-Complete-Course-Week-1-5-All-ASsignments-and-DQs-191.htm ISCOM 305 Week 1 Individual Assignment - Employee Data Collection Training 1. Individual Assignment: Employee Data Collection Training Your boss has asked you to help new employees understand uses of data in systems-operation management and the various statistical process controls they will experience on a daily basis. Create a 10- to 15-slide PowerPoint® presentation in which you describe 5 to 7 of the following terms: 1. Core competencies 2. Division of labor 3.
Management 365 Research Paper Assignment Each student is required to research and write a six (6)-page term paper. The topic for this paper will be selected from a list provided on Titanium. In addition to the final term paper, each student will provide a written two page mid-term project status report. Details for both the status report and final paper follow: Topic Selection Each student will provide the instructor a list of at least for topics from the list provided in the Assignments section of Titanium. This list should be in the order of preference of topics on which you would like to research.