Separation and Qualitative Determination of Cations and...

Separation and Qualitative Determination of Cations and Anions Instructor’s Guide Master Materials List (complete for 24 students working in pairs) Silver nitrate, AgNO3, 0.2 M, 100 mL* Silver nitrate, AgNO3, 0.1 M, 100 mL* Cupric nitrate, Cu(No3)2, .02 M, 100 mL* Zinc nitrate, Zn(NO3)2, 0.2 M, 100 mL* Ferric nitrate, Zn(NO3)2, 0.2 M, 100 mL* Hydrochloric acid, HCl, 6 M, 125 mL* Nitric acid, HNO3, 6 M, 125 mL* Ammonia, NH3, 6 M, 125 mL* Sulfuric acid, H2SO4, 6 M, 125 mL* Acetic acid, CH3COOH, 6 M, 125 mL* Sodium chloride, NaCl, 0.2 M, 100 mL* Sodium carbonate, Na2CO3, 0.2 M, 100 mL* Sodium hydroxide, 6 M, 100 mL* Sodium sulfate, Na2SO4, 0.2 M, 100 mL* Sodium nitrate, NaNO3, 0.2 M, 100 mL* Barium chloride, BaCl2, 0.1 M,†¦show more content†¦Unknown Anion Solutions Prepare the unknown anion solutions for the students to analyze from the four 0.2 M stock solutions of anions. Any combination of these four anions may be prepared. Using a graduated Beral-type pipet, add 2 mL of each ion selected to a 13 X 100 mm test tube. Add distilled water to give a total volume of 8 mL. Stopper the test tube. A matrix of combinations, similar to the cation unknowns, can be generated for the anions. |Unknown No. |Cl- |CO32- |NO3- |SO42- | |1 |X |X |X | | |2 | |X |X |X | |3 |X | |X |X | |4 |X |X | |X | |5 |X | | |X | |6 | |X | |X | |7 | |X |X | | |8 |X |X | | | |9 |X | |X | | |10 |Show MoreRelatedTitanium Cerium Ferrite ( Tcf ) Was Prepared By A Simple Solvothermal Method5630 Words   |  23 Pagesa spontaneous and endothermic nature of process. The highest values of uranium desorption was achieved using 0.1 M HNO3 as the desorbing agent. The results indicate that TCF has potential as an adsorbent for sorption U (VI), using a simple, fast separation method for removal of uranium ions from aqueous solution. 1. Introduction Uranium is one of the most dangerous heavy metals in the environment because

Television And Its Lasting Effects - 3402 Words

Alexa Sperling Patrick Belanger Communication Ethics, Section 5 7 May 2015 Television and Its Lasting Effects Think back to the television you used to watch as a child. Many of you may think of harmless, funny cartoons or maybe family television shows that had a life lesson or message at the end. Television has changed a significant amount over the years and some would describe the era we’re in now, as â€Å"The Era of Reality Television†. It seems that our generation seems to enjoy getting the inside look on the dramatic lives of others, rather than worrying about our own lives. Also a fairly new concept that has risen during our generation, is watching television programs that give health advice. No longer do some go to the doctor’s†¦show more content†¦Many were compelled on the invention and make profit, while some wanted to change the world through visual communication technology. When television started to take off in the 1920’s the main broadcasts were baseball games or the news (www.nyu.edu). However, television has drastically changed from those times; there is so much more programming available to the public and sometimes those programs aren’t ethical. Ethics can be defined as moral principles that govern a person s or group s behavior. Which raises the question, is it ethical to put human health at for the sake of entertainment? I will prove how various television programs can be crippling to human health in both physically and mentally by looking at specific television programs such as, The Dr. Oz Show, Jersey Shore, The Annual Victoria Secret Fashion Show, and America’s Next Top Model. The Dr. Oz Show, is a day-time television show that features Mehmet Oz, a cardiothoracic surgeon and professor at Columbia University. The Dr. Oz show premiered in September 2009 and has been on the air for five seasons. The shows main age demographic are those who are 27-54 years of age. In the first season, the show was nominated for an Emmy for best informative talk show. However, recent research suggests that the show is not at informative as one might have thought. In 2014, studies were conducted by researchers that work for the British

The Redhead Studies free essay sample

Red-haired people are also reported to bruise more easily, but there is little or no evidence to support the belief that people with red hair have a higher chance than other hair coloured individuals to haemorrhage. (wiki link down below) An similar experiment can be conducted with redheads to asses how different their pain tolerance is in contrast to that of people with other hair colours. It can be hypothesized that people with red hair are perceived and treated differently from people with other hair colours in terms of their pain tolerance.An experiment can be conducted using a group of naturally red-haired individuals versus a control group of other hair coloured individuals and the use of an ethically sound mechanism to trigger pain. The pain triggering mechanism would be wooden clothespin pegs. The independent variables will be the hair colour of the individuals and the dependent variable would be the length of time that the subjects could bear to keep the clothespin on their inner, lower arm. We will write a custom essay sample on The Redhead Studies or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The levels of the independent variables would be the categories of hair colour of the subjects: red hair, blonde hair and brunettes and the levels of the dependent variable would be he number of minutes Hair color stereotyping is well documented in jokes and the psychological literature. Blondes are stereotyped as incompetent, but likeable, while redheads are seen as competent but cold, or often with a fiery temper. Do these stereotypes affect job progression, mobility, and the rise to the corporate suite? To test this question, the hair color of CEOs of the top 500 members of the London Financial Times Stock Exchange (FTE) was analyzed. The chi-square analysis supports the preconceived hair color stereotypes.Do the stereotypes and results point to discrimination in lower organizational ranks? The article discusses the possible implications of these findings as well as areas for further research Interviews were conducted with redheads, and labeling theory is used to analyze their st igmatization in society as well as their perceptions of having red hair. First, using the relativistic stance of labeling theory, red hair is described as a type of deviance. Second, the processes involved in the labeling of redheads are examined, especially in regard to how redheads have personally experienced stereotyping.The stereotypes that redheads perceive to be socially constructed are as follows: hot temper, clownish, weirdness, Irishness, not capable of being in the sun, wild women, wimpy men, and intellectual superiority. Finally, the impact of being negatively labeled and treated in society is considered. Redheads typically receive negative treatment as children, and, as a consequence, redheads experience a lowered self-esteem, feelings of differentness, and a sense of being the center of attention.