I need to write a lab plan based on preparing a standard solution-- Standardization of NaOH (aq)

Experiment 8: Preparing a Standard Solution—Standardization of NaOH(aq) Learning Objectives » to understand the meaning of the term primary standard » to learn how to determine the precise concentration of a solution » to learn how to properly prepare, use and read a buret » to practice titration techniques and calculations » to learn how to weighing by difference Read and complete the Prelab Assignment for Experiment 8 (Chemistry 121 Lab Moodle site). Note that these assignments are always due the Sunday the week of lab, by 5 PM. Safety: 3.0 M sodium hydroxide is hazardous and will attack skin and clothing rapidly. Don't wear expensive clothes to lab. Flood any spills with water and ask your instructor or assistant for help. Wear goggles! If solutions are splashed on your face, call for help and use the eyewash. Materials 3 M NaOH, solid KHP (potassium hydrogen phthalate) dried, in weighing bottles, phenolphthalein indicator solution, one buret, four 250-mL Erlenmeyer flasks. Disposal The solutions of KHP and dilute NaOH should be neutralized (5 < pH < 9) and only then may be poured down the drain with lots of water. This is a skill-building experiment, where you will have to work carefully and use equipment skillfully in order to achieve good results. Learning good titration techniques will be helpful in subsequent labs, not only as specific skills, but they illustrate the excellent results that can be achieved if sound technique is employed. Students can work individually or in pairs on this experiment. Remember, it's up to you to make sure that you take part in all lab activities!

Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl B. HCl + BTB C. NH3 + BTB D. HCl + blue dye E. Blue dye + NaOCl with the 1 drop of HCl F. NaOCl + KI with 1 drop of starch G. KI + Pb(NO3)2 H. NaOH + phenolphthalein I. HCl + phenolphthalein J. NaOH + AgNO3 K. AgNO3 + NH3 after exposure to bright light L. NH3 and CuSO4 Part F: Testing of Various Foods with the NaOCl + KI solution Foods Presence or Absence of Starch Part 2: Household Chemicals with Bromthymol Blue Use the empty pipet in the Auxiliary Supplies Bag to test several (at least 3) household items including household cleaning products with bromothymol blue. Rinse the pipet well before using it on the next household chemical. When finished with this experiment rinse the pipet well and return it to the Auxiliary Bag for use in future experiments. Name the items tested and record their results. Household Chemicals Well No. Observations of the Reaction Conclusion: Questions and Problems: A. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate, NaHCO3). How would you test this material for the presence of sodium bicarbonate? B. Looking at the household chemicals you tested with bromthymol blue, what can you deduce from the test results for each of the household chemicals? C. You found a sample of a solution that you think might be vinegar which is acidic. You are verifying that it is indeed vinegar and you add a few drops of phenolphthalein. The sample turns pink. What does that tell you about this sample? D. You suspect dissolved silver ions in a solution. How would you test this solution to confirm the p

Topics Loops while Statement Description Write a program that computes the letter grades of students in a class from knowing their scores in a test. A student test score varies from 0 to 100. For a student, the program first asks the student’s name and the student’s test score. Then, it displays the student name, the test score and the letter grade. It repeats this process for each student. The user indicates the end of student data by entering two consecutive forward slashes ( // ) when asked for the student name. At the end, the program displays a summary report including the following: · The total number of students. · The total number of students receiving grade “A”. · The total number of students receiving grade “B”. · The total number of students receiving grade “C”. · The total number of students receiving grade “D”. · The total number of students receiving grade “F”. The program calculates a student's the letter grade from the student's test score as follows: A is 90 to 100 points B is 80 to 89 points C is 70 to 79 points D is 60 to 69 points F is 0 to 59 points. Requirements Do this exercise using a While statement and an If/Else If statement. Testing For turning in the assignment, perform the test run below using the input data shown Test Run (User input is shown in bold). Enter Student Name Alan Enter Student Score 75 Alan 75 C Enter Student Name Bob Enter Student Score: 90 Bob 90 A Enter Student Name Cathy Enter Student Score 80 Cathy 80 B Enter Student Name Dave Enter Student Score: 55 Dave 55 F Enter Student Name Eve Enter Student Score 85 Eve 85 B Enter Student Name // Summary Report Total Students count 5 A student count 1 B student count: 2 C student count 1 D student 0 F students 1 Sample Code string name; double score; //Initias setup cout << "Enter student name" << endl; cin >> name; //Test while (name != "//") { cout << "Enter student score" << endl; cin >> score; //more code here //Update setup out << "Enter student name" << endl; cin >> name; } //display summary report

• The file pokedex.txt contains partial information about 31 Pokémon that mostly come from this Pokédex.

Assignment

• Using pokedex.py as a starting point, supply the missing functions such that interaction with a user could produce this transcript.

Pokedex.py:

1,bulbasaur,318,grass,poison
2,ivysaur,405,grass,poison
3,venusaur,525,grass,poison
4,charmander,309,fire
5,charmeleon,405,fire
6,charizard,534,fire,flying
7,squirtle,314,water
8,wartortle,405,water
9,blastoise,530,water
10,caterpie,195,bug
11,metapod,205,bug
12,butterfree,395,bug,flying
13,weedle,195,bug,poison
14,kakuna,205,bug,poison
15,beedrill,395,bug,poison
16,pidgey,251,normal,flying
17,pidgeotto,349,normal,flying
18,pidgeot,479,normal,flying
19,rattata,253,normal
20,raticate,413,normal
21,spearow,262,normal,flying
22,fearow,442,normal,flying
23,ekans,288,poison
24,arbok,448,poison
25,pikachu,320,electric
26,raichu,485,electric,psychic
27,sandshrew,300,ground
28,sandslash,450,ground
29,nidoran,275,poison
30,nidorina,365,poison
810,yeet,777,steel,fire,water,grass,electric,psychic,ice,dragon,dark,fairy,???

Transcript:

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 1

The Pokedex
-----------
Number: 1, Name: Bulbasaur, CP: 318: Type: grass and poison
Number: 2, Name: Ivysaur, CP: 405: Type: grass and poison
Number: 3, Name: Venusaur, CP: 525: Type: grass and poison
Number: 4, Name: Charmander, CP: 309: Type: fire
Number: 5, Name: Charmeleon, CP: 405: Type: fire
Number: 6, Name: Charizard, CP: 534: Type: fire and flying
Number: 7, Name: Squirtle, CP: 314: Type: water
Number: 8, Name: Wartortle, CP: 405: Type: water
Number: 9, Name: Blastoise, CP: 530: Type: water
Number: 10, Name: Caterpie, CP: 195: Type: bug
Number: 11, Name: Metapod, CP: 205: Type: bug
Number: 12, Name: Butterfree, CP: 395: Type: bug and flying
Number: 13, Name: Weedle, CP: 195: Type: bug and poison
Number: 14, Name: Kakuna, CP: 205: Type: bug and poison
Number: 15, Name: Beedrill, CP: 395: Type: bug and poison
Number: 16, Name: Pidgey, CP: 251: Type: normal and flying
Number: 17, Name: Pidgeotto, CP: 349: Type: normal and flying
Number: 18, Name: Pidgeot, CP: 479: Type: normal and flying
Number: 19, Name: Rattata, CP: 253: Type: normal
Number: 20, Name: Raticate, CP: 413: Type: normal
Number: 21, Name: Spearow, CP: 262: Type: normal and flying
Number: 22, Name: Fearow, CP: 442: Type: normal and flying
Number: 23, Name: Ekans, CP: 288: Type: poison
Number: 24, Name: Arbok, CP: 448: Type: poison
Number: 25, Name: Pikachu, CP: 320: Type: electric
Number: 26, Name: Raichu, CP: 485: Type: electric and psychic
Number: 27, Name: Sandshrew, CP: 300: Type: ground
Number: 28, Name: Sandslash, CP: 450: Type: ground
Number: 29, Name: Nidoran, CP: 275: Type: poison
Number: 30, Name: Nidorina, CP: 365: Type: poison
Number: 810, Name: Yeet, CP: 777: Type: steel and fire and water and grass and electric and psychic and ice and dragon and dark and fairy and ???

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 2
Enter a Pokemon name: RAICHU
Number: 26, Name: Raichu, CP: 485: Type: electric and psychic

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 2
Enter a Pokemon name: raichump
There is no Pokemon named raichump

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 3
Enter a Pokemon number: 26
Number: 26, Name: Raichu, CP: 485: Type: electric and psychic

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 3
Enter a Pokemon number: 34
There is no Pokemon number 34

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 4
Enter a Pokemon type: Normal
Number of Pokemon that contain type normal = 7

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 4
Enter a Pokemon type: ???
Number of Pokemon that contain type ??? = 1

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 4
Enter a Pokemon type: unknown
Number of Pokemon that contain type unknown = 0

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 5
Average Pokemon combat points = 370.71

1. Print Pokedex
2. Print Pokemon by Name
3. Print Pokemon by Number
4. Count Pokemon with Type
5. Print Average Pokemon Combat Points
6. Quit

Enter a menu option: 6
Thank you.  Goodbye!

Grading - 100 points

• 20 points. The class Pokemon is defined (2 points) with the appropriate six methods (3 points each).
• 5 points. The function print_menu is correct.
• 10 points. The function print_pokedex is correct.
• 10 points. The function lookup_by_name is correct when the Pokémon is present (7 points) and absent (3 points).
• 10 points. The function lookup_by_number is correct when the number is present (7 points) and absent (3 points).
• 10 points. The function total_by_type is correct when the type is present (7 points) and absent (3 points).
• 10 points. The function average_hit_points is correct.
• 10 points. The format of the output matches the format of the output in the transcript exactly. (2 points for each type of difference up to 10 points.)
• 15 points - The Python solution is properly commented, easy to understand and does not contain unnecessary code. (3 points for each type of improvement up to 15 points.)

A firm’s balance sheets for year-end 2016 and 2017 contain the following data. All items are in millions of dollars.

What happened to investment in net working capital during 2017? (Enter your answer in millions.)

On April 20, 2016, Maskell Co. purchased an asset costing $66,000 with a useful life of 9 years and a residual value of $6,000. The company uses the sum-of-the-years'-digits depreciation.

Required:

Compute depreciation expense for 2016 using the

a. nearest whole month method

b. nearest whole year method

c. half-year convention method

Anthony reached age 70 1/2 in September of 2015 and took his required minimum distribution from his traditional IRA on April 1, 2016. What is the deadline for his next required minimum distribution?

a) December 31, 2016

b) April 1, 2017

c) April 15, 2017

d) December 31, 2017

At the beginning of 2016, Robotics Inc. acquired a manufacturing facility for $12 million. $9 million of the purchase price was allocated to the building. Depreciation for 2016 and 2017 was calculated using the straight-line method, a 25-year useful life, and a $1 million residual value. In 2018, the company switched to the double-declining-balance depreciation method.

What is depreciation on the building for 2018?