Premium Essay

Flame Colors

In: Science

Submitted By danaleem
Words 1072
Pages 5
-

[pic]

ABSTRACT

A flame test is an analytical technique to identify the presence of metal ions in a sample by heating the sample with a flame and examining the color of the flame. It is also used to visually determine the identity of an unknown metal or metalloid ion based on the characteristic color the salt turns the flame of an alcohol lamp. The heat of the flame excites the metals ions, causing them to emit visible light. The characteristic emission spectra can be used to differentiate between some elements. Different metal electrons emit different wavelengths of light to return to their respective ground states, so the flame colors are varied. These flames can be used to produce atomic emission spectra of the elements combusted. Using known values of emission spectra, one can perform a flame test on un unknown substance, gather an emission spectrum from it, and determine which elements are in the unknown substance.

INTRODUCTION

The smallest particle of an element that exist and still have the properties of the element called “Atom”. Electrons specify the chemical properties of atoms. Shells or energy level is the electrons in an atom that exist in layers. Usually, atoms do not eject radiation but there are ways of causing radiation to be ejected. The simplest thing to do is to heat the atoms. When an atom is heated, It soak up the energy causing its electron to get excited to positions of higher potential energy father away from the nucleus. At this point, the atom becomes shaky. Then, when an electron goes back to its ground level, it radiates the absorbed energy in the sort of light, which has a characteristic wavelength. This is the foundation of the flame test used to recognize the element. The quantity of energy absorbed will account for the presence of a spectral line. The emission spectrum may be used to observe the…...

Similar Documents

Free Essay

Colors

...I enjoy color, whether it is my crisp clothes or the blinking light of my alarm clock. Like some grand accomplishment of constructing an Academy Awards outfit, I stare in awe at my closet, my source of pride. “Okay, school-bus yellow is darker than lemon yellow,” I tell myself as I meticulously rearrange my color-coordinated clothes. As I look at my variegated shirt selection, I revel in my need for joyous color and expression. Because, you see, my everyday life is colorless, gray - dark and full of challenges. Catching the bus at 6:35 (nope, no car for me) and helping my mom (single parent at that) cook, budget, and pinch pennies - these are the realities of life. It’s not unfair, but it’s hard nonetheless. I make the best of it in my search for color, my search for illustration, my search for self. Taking a look at my closet, which is essentially a reflection of my chirpy persona, one would notice that I own few solid shirts. That would be boring - the antithesis of everything I represent. I need vibrancy; I need sizzle; I need dimension. Plaids, stripes, and eye-boggling outfits fulfill this yearning. Each color contributes to my message. Although most guys would be frightened to wear one, I’m not afraid to sport a salmon-pink rugby shirt or a rich Tyrian purple T-shirt. Because my father was never around and I didn’t have the whole father-son experience with football and no-girls-allowed playhouses, my colorful world has taken a new hue. So, while the “big game” is......

Words: 453 - Pages: 2

Premium Essay

Flame Spread on Ppma

...Fire Problem 2 Methodology 5 Results and discussion 6 Processes of flame spread 7 Diffusion flame spread 8 Thermal Model 8 Transition to Turbulence 10 References 13 Abstract The fires problem is one of the hazard pose a threat to life and property. Flames behave differently under various conditions which include: the oxygen available, combustible material, orientation of surfaces, etc. this a complex phenomena which is influenced by multiple factors that includes ignition, heat release rate, flame spread and the generation of different products of combustion like carbon IV oxide and carbon II oxide. The research was performed by studying various sources in the library and in the internet and also performing experiments to simulate a real life situation. Introduction The Fire Problem The flammability of a material is a complex event which is influenced by multiple factors that includes ignition, heat release rate, flame spread and the generation of different products of combustion like carbon IV oxide and carbon II oxide. In order to better protect the people and property from risk posed by the unwanted fires, it become necessary to understands all these factors under different conditions. Babrauskas and Vytenis 1992 suggested that heat release rate is the main variable in fire hazard; but Kashiwagi and Ito argued effectively that, the flame spread over the surface of combustible material such a wall and a floor is the...

Words: 2735 - Pages: 11

Free Essay

Colors

...My preferred color is blue. This color is known to be spiritual, insightful, patient and accepting. This color has a very nurturing side and is very Intune with other people and what they are feeling instead of what they are saying. I would describe this color as being gifted with connecting with people on a deeper level. Many people that are creative with vivid imaginations are most likely blue. This color is a true romantic and follow their heart. I would say I fit in this color in every aspect of its characteristics. I do everything I can to avoid conflicts. I don’t like to argue or debate at all. I’m very creative and love to talk with people. I have a big circle of friends and I value those relationships as well as the ones with my family. I tend to be the peacemaker in difficult situations. I think Blue has great qualities and a few that can be challenging. For example if you can use the good characteristics such as: empathy, sensitivity, accepting and be sympathetic when talking and listening to people this is an excellent quality to have. I think most people would be more likely to confide in you and ask you for help with issues as you won’t react in a negative, judgmental way to their issues. The negative effects of the color blue is the non-confrontational view. Sometimes there needs to be a debate in order to solve a problem. It’s part of the process to finding a resolution. I see myself learning to accept the debating process however it’s not natural to me at......

Words: 337 - Pages: 2

Free Essay

Color

...emits light. "the lights flickered and changed color" synonyms: hue, shade, tint, tone, coloration More one, or any mixture, of the constituents into which light can be separated in a spectrum or rainbow, sometimes including (loosely) black and white. plural noun: colours "a rich brown color" the use of all colors, not only black, white, and gray, in photography or television. "he has shot the whole film in color" a substance used to give something a particular color. "lip color" synonyms: paint, pigment, colorant, dye, stain, tint, wash More HERALDRY any of the major conventional colors used in coats of arms (gules, vert, sable, azure, purpure), especially as opposed to the metals, furs, and stains. 2. pigmentation of the skin, especially as an indication of someone's race. "discrimination on the basis of color" synonyms: skin coloring, skin tone, coloring; More a group of people considered as being distinguished by skin pigmentation. "all colors and nationalities" rosiness of the complexion, especially as an indication of someone's health. "there was some color back in his face" synonyms: redness, pinkness, rosiness, ruddiness, blush, flush, bloom More 3. vividness of visual appearance resulting from the presence of brightly colored things. "for color, plant groups of winter-flowering pansies" picturesque or exciting features that lend a particularly interesting quality to something. "a town full of color and character" synonyms: vividness, life,......

Words: 520 - Pages: 3

Premium Essay

Colors

...and help us discern what colours around us mean. We need to always be aware and looking for colours which can give us clues and messages in this amazing world. Reference: Color Meanings ...... not always what you expect. (2014), Retrieved April 8, 2014, from http://www.color-wheel-artist.com/color-meanings.html Color meanings and their customs. (2014), Retrieved April 8, 2014, from http://clanofdanu.tripod.com/colors.html Color Meanings in Business. (2014), Retrieved April 8, 2014, from http://www.empower-yourself-with-color-psychology.com/color-meanings-in-business.html Color symbolism, color and personality, gemstone color & meaning. (2014), Retrieved April 1, 2014, from http://crystal-cure.com/color-meanings.html Different Colors and Their Meanings. (2014), Retrieved April 1, 2014, from http://www.infojug.com/articles/different-colors-and-their-meanings.html Meaning of Colors. (2014). Retrieved April 8, 2014, from http://www.stgeorgegreenville.org/OurFaith/Icons2/Icon%20Display/PDF%20Documents/Color.pdf. Table of Colours and their Common Associations and Meanings. (2014), Retrieved March 31, 2014, from http://www.picturetapping.com/PTT_Colour_Chart.pdf Understanding the Meaning of Colors in Color Psychology. (2014). Retrieved March 31, 2014, from http://www.empower-yourself-with-color-psychology.com/meaning-of-colors.html. Communication. Research Paper The Power of Colours and their Meanings. Dhakshani Dharmadeva (2614) Hishani Raveendran......

Words: 2318 - Pages: 10

Free Essay

Flame Photometry

...Flame Photometry 1) Principal of Flame Photometry: It is the conversion of molecules to their component atoms in gaseous state ; and it is carried out by introduction of the molecules solution in the flame in very fine droplet Atoms in gaseous state in the flame absorb thermal energy from the flame itself ,some of the atoms get excited & as they return back to the ground state they emit radiation having energy equal to that absorbed. The emission is proportional to the number of excited atoms, which is proportional to the total number of atoms in the flame i.e. the sample concentration When a metallic salt solution is aspirated into path of flame, following events takes place; 1) Vaporization: The solvent is vaporized leaving particles of solid salt. 2) Atomization : The salt is vaporized and converted into free neutral gaseous atoms or radicals 3) Excitation: Some of these atoms are excited by the thermal energy of the flame to higher energy levels.The various events are as follows, Sample Solution Fine Mist M+ X  Solid Particles MX M+ X  Ground  State    gaseous  atoms   Excited Gaseous Metal atoms Gaseous Atoms M(g)+ X(g) Gaseous Molecules MX The excited metal atoms are unstable at higher energy level, and quickly returns to lower energy state, while coming to lower energy they emit light of their own characteristic wavelength. The measurement emitted photons (light) forms the basis of flame photometry. The colour of the flame tells us which......

Words: 1388 - Pages: 6

Premium Essay

Color Blind or Color Brave

...Color Blind or Color Brave? Carrie Rawdan SS236-05 Professor Burnett February, 24th, 2015 The story of Mellody Hobson “Color blind or Color brave” is a powerful speech about the reality of current day racism. She choose to share her brilliant ideas and life experiences by giving a speech on TED. Her stories of racism and her triumph of becoming one of two black woman running a fortune 500 company are intriguing. Mellody Hobson delivers a powerful speech that touches the heart and encourages the mind to decide if we are Color blind or Color brave”. “TED began in 1984 as a conference where Technology, Entertainment and Design converged, and today covers almost all topics — from science to business to global issues — in more than 100 languages” (TED, 2014). This is an amazing opportunity for people to share their views, life experience, and intelligence in a global community setting. Mellody Hobson, the chairwoman for DreamWorks, started her speech on TED with a full audience. She spoke of a story supporting a friend at a predominantly white meeting and was mistaken for the kitchen help. “This experience made her ask herself and friend, is this a good enough reason why we need more racial diversity in the U.S Senate” (Hobson Mellody, 2014)? The daughter of a single mother and five other siblings, Mellody said she was taught at a very young age the realness of the world from her mother. One day after a birthday party, Mellody’s mother did not ask the normal......

Words: 621 - Pages: 3

Free Essay

More Than Just a Color

...When used in literature, the color white usually corresponds with innocence and purity. It traditionally refers to a body that a man cannot touch. In both “The Storm” and “Desiree’s Baby,” Kate Chopin transforms the meaning of the color white. In “The Storm,” Calixta’s body is described as white on multiple occasions, representing beauty and sexual desire. Many of her features including her neck, throat, and breasts are described as white. Similarly in “Desiree’s Baby,” Armand Aubigny bases the worth of a person primarily on his or her race. In his eyes, nothing was more beautiful and desirable than being purely white. Through the use of metaphors and imagery, Kate Chopin uses the color white to represent passion, beauty, and desire. “Desiree’s Baby” explores issues of racial prejudices in Louisiana during the slavery era. During this time period, there was absolutely no tolerance for sexual relationships between people of different skin colors. It was a difficult time not only for blacks but also for women because of the dominance white men had over them. Armand Aubigny falls in love with the beautiful Desiree and they have a son together. Armand quickly abandons Desiree and their son when he realizes the child is of black and white heritage, immediately believing that Desiree is the one to blame and that she must be black. Armand’s racial prejudices are used against him at the end of the story when he realizes that he is of the very race that he despises the most. “The......

Words: 1152 - Pages: 5

Premium Essay

Color Blindness

...Color Blindness Color blindness also known as color deficiency is a vision problem when you have difficulty distinguishing certain colors, such as blue, yellow, red and green because your eyes did not make all the pigments needed for color vision. If one pigment is missing, the eye might have trouble seeing certain colors. A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. (1) There are three different types of color blindness disorders. 1. Trichromat; meaning you can discriminate among colors of the visible spectrum and have normal color vision 2. Monochromats; which are totally color blinded sensitive to lightness and darkness 3. Dichromats; who are partially color blinded (Rathus 82). Color blindness is a sex-linked trait that is caused by a recessive gene. Roughly 8% of men and 0.5% of women are affected. (3) Men are more likely to be color blinded than women. Why? Because the genes for the red and green color receptors are located on the X chromosome of which males have only one and females have two. (2) Being color blind in not debilitating in fact there are many famous and success individuals who are color blind. For example Bill Clinton our 42nd President has a color vision deficiency that he inherited from his parents. He needs a special light in order to determine the color of a certain object. He also has difficulty when it comes to signals from individual colored lights, so he......

Words: 349 - Pages: 2

Premium Essay

The Meanings of Colors

...THE MEANINGS OF COLORS Colors… A lot of colors… Each color has a meaning. Which is your favorite color? Black, white maybe red or blue? It is this instinctual choice of a color that tells you a lot about yourself, how you function and how others see you. It is the means to understanding your behavior and your character traits as well as your physical, mental, emotional and spiritual states. It reflects the way you operate in the world, your strengths and weaknesses, your vulnerabilities, your deepest needs and your challenges at that time in your life. What Does Your Personality Color Say About You? To read more about your personality color, click on the link for each color If your favorite color is red, you are action oriented with a deep need for physical fulfillment and to experience life through the five senses. If orange is your favorite color, you have a great need to be with people, to socialize with them, and be accepted and respected as part of a group. You also have a need for challenges in your life, whether it is physical or social challenges. Choosing yellow as your favorite means you have a deep need for logical order in your everyday life and to be able to express your individuality by using your logical mind to inspire and create new ideas. If green is your favorite, you have a deep need to belong, to love and be loved, and to feel safe and secure. You need acceptance and acknowledgment for the everyday things you do for others - just a 'thank you'......

Words: 468 - Pages: 2

Free Essay

Flame Photometery Report

...DEPARTMENT OF MECHANICAL ENGINEERING BULUMA MARK EUGINE F18/1494/2011 GROUP 4 EXPERIMENT 3: FLAME PHOTOMETRY. THE OBJECTIVE OF THE EXPERIMENT. 1. To determine presence and concentration of sodium ions in drinking water. 2. To determine the presence and concentration of potassium ions in an unknown fertilizer sample. THEORY BEHIND THE EXPERIMENT. The major cation of the extracellular fluid is sodium. The typical daily diet contains 130-280 mmol (8-15 g) sodium chloride. The body requirement is for 1-2 mmol per day, so the excess is excreted by the kidneys in the urine. Hyponatraemia (lowered plasma [Na+]) and hypernatraemia (raised plasma [Na+]) are associated with a variety of diseases and illnesses and the accurate measurement of [Na +] in body fluids is an important diagnostic aid. Potassium is the major cation found intracellularly. The average cell has 140 mM K+ inside but only about 10 mM Na+. K+ slowly diffuses out of cells so a membrane pump (the Na +/K+ATPase) continually transports K+ into cells against a concentration gradient. The human body requires about 50-150 mmol/day. Hypokalaemia (lowered plasma [K+]), hyperkalaemia (increased plasma [K+]) and hyperkaluria (increased urinary excretion of K+) are again indicative of a variety of conditions and the clinical measurement of [K+] is also of great importance. INTRODUCTION TO THE EXPERIMENT Flame photometry is a traditional and simple method for determining sodium and......

Words: 1675 - Pages: 7

Premium Essay

Color Purple

...Cody Stetson Mr. Nester AP Writing/English 12 3 March 2015 The Color Purple Feminism in women's movements has been a prominent impact that revolutionizes women's rise for independence and equality amongst men. The ideology of feminism is shown rather often in various works of literature, through various different literature time periods. The way it is depicted in these novels can often include other various objective prejudices, such as racism or sexism. The Color Purple, by Alice Walker, depicts the same ideology, along with those extra prejudices, throughout the endeavors of her more prominent characters, such as Celie or Shug Avery. Walker's novel is a prime representation of the vocalization of women's true voices throughout the gender differences that plagued them and their entirety. Celie is a prime example of how unruly prejudice and direct insults can be on a woman of her time. She was portrayed as a character that is always quiet, never outspoken, lacking self-confidence, and is considered to have an appearance like that of a hag-woman, for men and women alike never compliment her for her own looks or features. Men like Alphonso and Mr. ____ only see Celie as yet another object in their lives, and treat her with the same respect as the whites did slaves during societal times before hers. The treatment of women in this novel as well as the absurdity and abuse from the men that correlate to this novel can directly be assumed by most female characters and......

Words: 1802 - Pages: 8

Premium Essay

Color Purple

...Justin Bauer Mr. Pena English 2025 31 March 2016 Sisterhood Celie and Shug Avery form a deeply rooted friendship in Alice Walker’s The Color Purple. They each have what the other needs. Both women are severely oppressed by the hardships of their lives. Celie was oppressed by her lack of dignity and emotions caused by her abusive father and husband. Shug was oppressed by her unpleasant, vulgar reputation in the eyes of others. Shug’s promiscuous image restrained her from seeking what she yearned, which is to be a member of a loving family. Shug was never truly part of a loving family. Her own mother even hated her. She displays this when she states, “One thing my momma hated me for was how much I love to fuck, she say. She never love to do nothing had anything to do with touching nobody, she say. I try to kiss her, she turn her mouth away” (Walker 120). Celie freed Shug from this promiscuous image, and in return, Shug freed Celie from her psychological chains of abuse by being her mentor and friend. Both women became what others made them out to be. For Celie’s whole life, her father Alphonso and husband Mr. (Albert) berated and belittled Celie by calling her ugly and useless. Shug even joined in on the abuse when she told Celie at their first meeting, “You sure is ugly” (Walker 46). On account of constant abuse, Celie never developed self-esteem causing her to feel ugly and useless. Shug’s own mother first called her a whore and eventually others joined......

Words: 820 - Pages: 4

Free Essay

Color Blindeness

...olVirtual Genetics Lab: The Inheritance of Color Blindness Worksheet Learning Goal: To explore the inheritance pattern of color blindness in humans. Prerequisite Knowledge: Before beginning this lab, you should be familiar with these concepts: * the definition of sex-linked genes, and examples of sex-linked genes in humans and other organisms * how the inheritance pattern of sex-linked genes differs from that of autosomal genes * the use of Punnett squares to understand patterns of inheritance Introduction: The gene that codes for red-green color blindness, the most common form of color blindness in humans, is found on the X chromosome. One in 12 males is color blind. In females, however, color blindness affects only about 1 in 200. Why is there such a difference? In this lab activity, you will act as a genetic counselor and help parents determine their likelihood of having color-blind children. You will also use this information to understand why males are more likely than females to be color blind. Part A Couple 1 comes into your office. The husband has normal vision; the wife is heterozygous for the color-blindness allele. Enter the Virtual Genetics Lab Room by clicking the button. Then, follow the Lab Procedure. Lab Procedure 1. Make sure that Human is chosen from the Species Selector and that Color Blindness is selected from the menu of traits. 2. In the Set Alleles box, set the parents’ alleles according to the information about......

Words: 1067 - Pages: 5

Premium Essay

The Color of Fear

...The film shown in class, The Color of Fear, featured a focus group of men representing multicultural America, who held an open and often frank discussion of racial issues in the United States. Among the many topics and issues mentioned included the notion of White over Black, or persons of color. Closely related to this is White Supremacy and White Privilege. Other things mentioned by the participants include: being invisible, disregarded, ignored, that minorities held themselves back from progress, and color-blindness to name but a few.    In the interest of previewing the content of this course, what was it about the film that got your initial attention, revealed something new in the discussion of race and racism, or made you think closer about everyday events in your personal experience? Reflecting back on the movie and the end of the quarter and all the things I have learned through out, the part of the film that got my initial attention was David. To me he summed up the saying “ignorance is bliss”. He seemed to come from a world where in his mind, equal opportunity was everywhere and he felt very strong about the best person for the job should be the one that gets it based on qualifications not skin color. In actuality, the world outside his own small town was quite the opposite. Minorities that he would consider a friend and look at the same as he would a white person where getting treated bad in some cases and would have to deal with the “white man” always trying......

Words: 329 - Pages: 2