Chem 1B Worksheet #2 Name ____________ Due 1/11/13 (1/6/13 stamp)

I. Balance Redox Equations in acid (H+) or basic (OH-) media. Assume ions are (aq), even when “aq’ is not shown.

1. MnO4- + Sn2+ ( Mn2+- + Sn4+ H+

2. FeCl2 + H2O2 ( FeCl3 + H2O H+

3. AsO43- + I- ( AsO33- + I2 H+

4. I2(s) + S2O32- ( I- + S4O62-

5. NO3- + I- ( NO(g) + I2(s) H+

6. Cr2O72- + NH4Cl ( Cr3+ + N2(g) H+

7. PbO(s) + NH3 ( N2(g) + H2O(l) + Pb(s) OH-

8. CrO42- + Fe2+ ( Cr3+ + Fe3+ OH-

9. CrO2- + ClO- ( Cl-+ CrO42- OH-

10. MnO4- + H2C2O4 ( CO2 + MnO2 OH

11. CrO2- + HO2- ( CrO42- OH-

12. Cl2 ( ClO3- + Cl- OH-

II. Balance equations page 177, 4.121 (a) to (f) total 6 assignments

Steps to balance a redox equation:

1. Recognize the reaction is a re-dox process – there is oxidation # changes with specific elements. Oxidation# increases = oxidation; Oxidation # decreases = reduction. Oxidation and reduction always happen within the same reaction.

2. Separate into 2 half-reactions. One show oxidation and the other reduction.

3. Balance the half equations for mass – only for the key elements at this time.

4. Balance the half equations for charge – adding e’s.
* Find change of the oxidation number of a specific element and decide how many e’s to add and on...

...Inventory Summary
Project Description:
In this Mastery project, you will edit a worksheet that summarizes the inventory status at the Petaluma production facility.
Instructions:
For the purpose of grading the project you are required to perform the following tasks:
Step | Instructions | Points Possible |
1 | Start Excel. Open the downloaded Excel workbook named GO_e02_Grader_EOC.xlsx. | 0 |
2 | Rename the Sheet1 worksheet tab to Condiments and then display the Toppings worksheet. | 4 |
3 | On the Toppings worksheet, in cell B4, insert a function that will total the Quantity in Stock data (A15:A29). | 5 |
4 | On the Toppings worksheet, in cell B5, insert a function that will calculate the average retail price of the available toppings (D15:D29). | 5 |
5 | On the Toppings worksheet, in cell B6, insert a function that will calculate the median retail price of the available toppings (D15:D29). | 5 |
6 | On the Toppings worksheet, in cell B7, insert a function that will calculate the lowest retail price of the available toppings (D15:D29). | 5 |
7 | On the Toppings worksheet, in cell B8, insert a function that will calculate the highest retail price of the available toppings (D15:D29). | 5 |
8 | On the Toppings worksheet, in cell B10, insert a function that will count the total number of salsa products available....

...Summary Worksheet
Complete one worksheet for each source. All worksheet and summaries must be turned in.
Fill in the bibliographic information below. You must type in your information. Handwritten worksheets will not be accepted. Parenthesis with ABib (ABib) and Sum (Sum) indicate the information is appropriate for either the Annotated Bibliography assignment and/or the Summary.
Author(s)’ Name(s)(Sum)
Article Title (Sum)
Journal Title
Date of Publication
Volume Number
Issue Number
Academic Format Style
Database
Fill in the content information below.
Thesis
(ABib & Sum)
Purpose
Audience
Important
Ideas
(ABib & Sum)
Assumptions
(Sum)
Conclusions,
implications,
and/or
consequences
(ABib & Sum)
Limitations
(ABib)
Reliability
(ABib)
On a separate sheet of paper write a brief summary (350 words) of the source. The summary must include the title of the article and the full name of the author(s). All summaries must be turned-in with the appropriate worksheet and publication page attached to the summary with one staple. Staplers capable of binding large number of pages are available in the library. Staple in the following order: summaries first, worksheets second, and lastly, publication page.
...

... 3 is a number, numeral, and glyph. It is the natural number following 2 and preceding 4.
In mathematics
Three is approximately π when doing rapid engineering guesses or estimates. The same is true if one wants a rough-and-ready estimate of e, which is actually approximately 2.71828.
Three is the first odd prime number, and the second smallest prime. It is both the first Fermat prime and the first Mersenne prime, the only number that is both, as well as the first lucky prime. However, it is the second Sophie Germain prime, the second Mersenne prime exponent, the second factorial prime, the second Lucas prime, the second Stern prime.
Three is the first unique prime due to the properties of its reciprocal.
Three is the aliquot sum of 4.
Three is the third Heegner number.
According to Pythagoras and the Pythagorean school, the number 3, which they called triad, is the noblest of all digits, as it is the only number to equal the sum of all the terms below it, and the only number whose sum with those below equals the product of them and itself.
Three is the second triangular number and it is the only prime triangular number. Three is the only prime which is one less than a perfect square. Any other number which is n2 − 1 for some integer n is not prime, since it is . This is true for 3 as well, but in its case one of the factors is 1.
Three non-collinear points determine a plane and a circle.
Three is the fourth...

...ECT 122 Week 1 iLab #3
Parts:
Breadboard
Handheld DMM
DC power supply
Test leads
Resistor kit
1. List the functions available on the DM717 handheld digital multimeter (DMM).
This meter can measure three basic electrical properties voltage, current and resistance.
2. What is the function of the COM connection? What color lead is placed in this connection?
It’s the common ground and is used in all measurements. Black lead is placed in this connection.
3. What is the function of the “VWmA” connection? What color lead is placed in this connection?
It’s used to measure voltage and resistance. Red lead is places in this connection.
4. Pick five resistors at random.
Complete one row of the table below for each resistor.
a. Record the color of each band.
b. Using the color bands, calculate the resistance and tolerance and record your calculated value.
c. Calculate and record the tolerance range for each resistor.
d. Measure and record the value of each resistor using a handheld DMM.
e. Indicate Y = yes or N = no if the measurement is within tolerance.
Band Color
Calculated
Measured
Y/N
1
2
3
4
Value
Tolerance
Range
Brown
Red
Black
Gold
12Ω
+/- 5%
11.4 -12.6Ω
11.8Ω
Y
Orange
Orange
Orange
Gold
33kΩ
+/- 5%
31.35-34.65kΩ
32.84kΩ
Y
Brown
Green
Brown
Gold
150Ω
+/- 5%
142.5-157.5Ω
148.0Ω
Y
Red
Red
Brown
Gold
220Ω
+/- 5%
209-231Ω
217.5Ω
Y
Blue
Gray
Yellow
Gold
680kΩ
+/- 5%
646-714kΩ...

...differentiation involving a workbook and a worksheet?
A workbook is just an Excel file that entered associated data is stored. They are qualified of holding an almost endless numbers of worksheets, which is determined by the size and the significance of the data. It is, really, a book filled with the data from numerous of worksheets. Mostly, workbooks are categorized by the data in which it’s on each worksheet-if every single page of the workbook contains the matching type of data, that workbook will be identified for the related data that it maintains.
Worksheet in Excel is a combination of a number of cells that contains data relating to a particular piece of information. Otherwise, a worksheet is known as a spreadsheet. A user is capable of entering, modifying, and manipulating the data that is inserted in the spreadsheet. With a worksheet, a user is basically putting information onto a page of a workbook.
Q. Why would you want to use separate worksheets when using Excel?
You should use several worksheets when creating spreadsheets for more than a few related groups of information. Never use several worksheets if your spreadsheets are not interrelated- make a new as a replacement. Never use the numerous worksheets with the “what if” situations to make the same group of information (perhaps worst case, best...

...Farhan Qureshi (R. Madhavan), Raju Rastogi (Sharman Joshi), and Rancchoddas "Rancho" Shyamaldas Chanchad (Aamir Khan) are students at the Imperial College of Engineering, one of the best colleges in India. They are room-mates in the college's hostel. While Farhan and Raju are average students from modest backgrounds, Rancho is from a rich family. Farhan wants to become a wildlife photographer, but is pursuing an engineering degree to fulfil his father's wish. Raju, on the other hand, needs to improve his family's financial situation. Rancho is a wealthy genius who studies for the sheer joy of it. His passion is for knowledge and taking apart and building machines rather than the conventional obsession of the other students with exam ranks. With his different approach Rancho incurs the wrath of college's dean, Professor Viru Sahastrabudhhe aka ViruS (Boman Irani). Rancho irritates his lecturers by giving creative and unorthodox answers, and confronts ViruS after fellow student Joy Lobo hangs himself in his dormitory room. Rancho denounces the rat race, dog-eat-dog, mindless rote learning mentality of the institution, blaming it for Lobo's death.
Threatened by Rancho's talent and free spirit, ViruS labels him an "idiot" and attempts, on a number of occasions, to destroy his friendship with Farhan and Raju, warning them and their parents to steer clear of Rancho. ViruS's model student is Chatur Ramalingam or "Silencer", (Omi Vaidya) who sees a high rank at a prestigious...

...-------------------------------------------------
Plot/Summary
Farhan Qureshi (R. Madhavan), Raju Rastogi (Sharman Joshi) and Ranchhordas Shyamaldas Chanchad (Aamir Khan) are three students who share a room in the residence of the fictional Imperial College of Engineering (ICE). Farhan is studying engineering to pursue his father's wishes, over his own passion for wildlife photography. Raju is studying to get his family out of poverty. On the other hand, Ranchho studies for his simple passion in machines. Rancho believes that one should follow excellence, not success, as success will take care of itself if excellence is followed.
However, this different approach is sneered upon by the college director, Dr. Viru "Virus" Sahastrabuddhe (Boman Irani). Virus's favourite student, Chatur Ramalingam (Omi Vaidya), known by the ICE community as "Silencer", believes in mindless memorizing over understanding in order to reach his goals of corporate status. Raju, who is initially annoyed by Rancho's methods, moves in with Chatur, where he fares worse. In order to impress Virus on Teachers' Day, Chatur, with the help of the college librarian, Dubey, writes a speech in pure Hindi which he will memorize to deliver on stage. Rancho decides to teach him a lesson and provide Raju with an example. Chatur, due his lack of knowledge in Hindi, mindlessly memorizes the paper, of which Rancho had secretly changed a few words (e.g. "chamatkaar" (miracle) was changed to "balatkaar" (rape))....

...Muhammet Raşit Akben KUTLUK ÖZGÜVEN
09.01.2012
Science and Technology
HELİUM 3
As we know, helium is a lightweight and non-radioactive isotope of helium with two
protons and one neutron. Also it sometimes called ‘tralphium’. According to many experts,
helium-3 can be a clean nuclear power. There are many benefits of helium-3 but the most
important problem is that there is very little helium-3 available on the Earth. First of all, I will
give general some information about helium-3 isotope.
Helium-3 |
General |
Name, symbol | Helium-3, 3He, He-3,3He |
Neutrons | 1 |
Protons | 2 |
Helium-3 is sought for use in nuclear fusion. As we know, all nuclear power plants use a
nuclear reaction to produce heat. This is used to turn water into steam that then drives a
turbine to produce electricity. Current nuclear power plants have nuclear fission reactors in
which uranium nuclei are split part. This releases energy, but also radioactivity and spent
nuclear fuel that is reprocessed into uranium, plutonium and radioactive waste which has to be
safety stored, effectively indefinitely....