Investigation: How does the concentration of acid affect the rate of reaction? :: GCSE Chemistry Coursework Investigation

Investigation: How does the concentration of acid affect the rate of reaction? The aim of this investigation is to test how concentration affects the rate of reaction. My prediction for my investigation is that the higher the concentration, the faster the reaction will be. My reason behind my prediction is: Â · The higher the concentration, the more particles there are which will collide with enough energy to overcome activation energy, which is explained as the collision theory. Collision theory explains how chemical reactions occur and why rates of reaction differ. For a reaction to occur, particles must collide. If the collision causes a chemical change it is referred to as a fruitful collision. For a reaction to occur, the reactant particles must collide. Only a certain fraction of the total collisions cause chemical change; these are called successful collisions. The successful collisions have activation energy at the moment of impact to break existing bonds and form new bonds, resulting in the products of the reaction. Increasing the concentration of the reactants and raising the temperature bring about more collisions and therefore more successful collisions, increasing the rate of reaction. When a catalyst undergoes collision with the reactant molecules, less energy is required for the chemical change to take place, and hence more collisions have sufficient energy for reaction to occur, therefore the reaction rate increases. The four factors that influence the rate of reaction and therefore the experiment are: 1. The temperature. This is because; if the concentration is warmer, then the reaction rate may increase or decrease depending on temperature. 2. The Catalyst. This is because; if the catalyst is of a larger volume or size than the concentration then it may have an affect on the concentration and experiment that will differentiate results. 3. The concentration. This is a variable that will be used because we are trying to find if the concentration will affect the rate of reaction. 4. The surface area. This is because; if the surface areas of the calcium carbonate pieces are different then it will affect the results also because it will give off more gas, the greater the surface area. To achieve the most accurate of results possible I will use all sufficient equipment and data. For my prediction, that the higher the concentration, the faster the reaction rate, I will use pre-test results to help with my evaluation before I start my investigation. Before I started my investigation, I did a pre-test experiment that helped me to reach my prediction.

Portrayal of Teenage Girls in the Media

In the United States of America, citizens possess the privilege to enjoy the freedom of speech and the freedom to express their views and feelings under the protection of the U. S. Constitution. However, there may be a point at which freedom of speech is abused or escalated to an unethical level that may be harmful to the well-being of society, particularly the youth of today and the future leaders of our world. Over the years, the question â€Å"should parents be concerned about the portrayal of teenage girls in the media? † has become a significant controversial moral issue in society.The portrayal of teenage girls in the media is a controversial moral issue because of the cultural sensitivity and the perceived intrusiveness of the subject. This issue primarily concerns the excessiveness of sexual content and unbecoming images of young women exposed through the media. Needless to say, this question leaves many parents ill at ease. Images, perceived norms and new trends are c onsistently being set for how young girls and women must look, act, think, and feel in order to be successful and accepted in today’s society.There has been an ongoing debate concerning moral actions that need to be taken to regulate the appropriateness of age sensitive material being permeated throughout the media. Media is everywhere; it is in classrooms, advertisements, movies, televisions, magazines, newspapers, the internet, the workplace, and in homes all over the country, and it continues to infuse the world and our lives. Media does not only sell tangible products, but also morals, values, concepts of life, and success, and to some extent normalcy (Killing Us Softly 3).Whether positive or negative, consciously or unconsciously, media affects each and every one of us every day. Young girls are being exposed to a supposed ‘ideal’ image of female beauty through the years of media exposure. For example, the notion that the most important thing to a young woma n should be her physical appearance is an idea that is acquired at a very young age. Even before a girl reaches puberty, she is already aware of her physical appearance and the effect it has on her stand in society. Extreme and unhealthy amounts of guilt and shame can follow if the young woman does not achieve that perception (Killing Us Softly 3).Many people in America’s society believe that the media’s unethical behavior is to blame for influencing and even producing some of the nation’s growing problems among teens, such as eating disorders, increased participation in sexual activity, pregnancy rates, rape, increased alcohol consumption and drug use. Others, however, feel that society should not blame the media for the inappropriate behavior and that lack of discipline and morals among teens in today’s society, but rather blame the parents and educators who influence and guide those teens.The majority of parents hold the media responsible for the corru ption of the morals of teenage girls. They believe that the media’s widely unrealistic and unhealthy depiction of young women and what they are supposed to look and behave like in order to be socially accepted and respected has allowed and encouraged teenage girls to become overly consumed in achieving this supposed ideal. Sadly, it has left many girls confused, in danger, or even dead.Supporters of this position argue that â€Å"the mainstream corporate media construct sex and sexuality in ways that limit and hamper girls’ healthy sexual development† (Durham 12). They trust that there is more evidence that the messages teenage girls are getting about sex from media are harmful rather than helpful (12). Intervention began to be a growing demand from the public audience. One potential resolution to this moral issue is to continue revising and producing television and movie ratings that are current, relevant, and constructive to the current images spread through t he media.For example, a ban on commercials and advertisements that objectify women and promote sexual behavior would be effective to alleviate these unethical teen images. The Motion Picture Association of America (MPAA) ratings and the TV Parental Guidelines (a TV ratings system designed to give parents more information about the content and age-appropriateness of TV programs) (â€Å"TV†) can be used â€Å"to allow parents to block out programs they do not want their children to see, based on the ratings† (â€Å"TV†) and other personal preferences.These types of sources support and encourage media restrictions and the facilitation of providing cleaner and more appropriate television for children. Promoting a more realistic and healthy body image, lifestyle, and attitude for today’s young women through public service announcements is another form of media that advocates healthy teen behavior. According to supporters of such sources, consumer advocacy and action is a principal task in resolving this problem.People have the power to critique, analyze, challenge, and affirm media messages, and also have the option of turning off, boycotting, and disengaging from media that denigrate or insult girls (Durham 227). Just as producers have the right to produce and distribute these messages, the public audience has the right to question and challenge them. It is both the responsibility and obligation of the American society and the government to ensure a safer, healthier, more promising nation for girls to develop and grow without negative imagery, or false and fabricated ideals being fed to them through media.Nonetheless, these potential resolutions to limiting the indecent exposure of teenage girls in the media predictably stir up opposition. Some people believe that society should not blame the media for the inappropriate behavior and lack of discipline and morals among teens in today’s society, but rather the parents and educators who influence and guide those teens. Also, they argue that not all media is bad media, and consider the idea that adults are biased against teens.They believe that those who oppose their belief have over exaggerated the media’s impact on today’s youth, claiming that â€Å"seeing attractive models [has] become such a familiar experience that exposure no longer produces a reaction strong enough to influence self-perception or ones general sense of hope† (Wagner 120). Meaning, that girls have become desensitized to this kind of imagery that does not psychology affect them as much as some would like to believe.After analyzing and being influenced by both sides of the argument, the leading proposed solution to me would be to alter the ideal image of female beauty and appeal disseminated by the media, then to extensively promote and advertise an improved, healthier, beautiful, and more realistic idea of female beauty. The media’s negative imagery has had an im pact on the majority of today’s youth and is noticeably a serious problem. This impact has infected the minds of young growing girls with unrealistic and dangerous notions of perfection and lifestyle, clearly leaving parents concerned.America’s teenage generation is disregarding moral values and the practice of self-respect, faith, self awareness and the embracing of childhood experiences, and rather engaging in activities involving immoral behavior which are simply not age-appropriate. Although who can blame them, since this type of behavior has become socially acceptable due to the media’s infiltration into America’s homes and spread of images and ideals focused rebellious behavior, sexual active, parental defiance, and distorted imagery of beauty and health.The American society should take action as concerned citizens by voicing their opinions to society and demanding a decrease of the objectification and sexualization of females in the media. Addition ally, since advertising agencies are not going to immediately rid themselves of the negative unethical habits with regard to female imagery in the media, continuing to produce and broadcast understandable and accurate ratings on all television programs, movies and even advertisements is an effective way to inform parents about what their children are watching and being influenced by.Many young girls worry about the contours of their bodies, especially shape, size, and even muscle tone, because of the belief that the body is the ultimate expression of the self and beauty (Durham 128). This kind of mentality can cause long-term physical and mental damage and can push young girls to dangerous limits. Communities should promote extracurricular programs that help young people develop self-esteem based on traits such as ability, talents, character, and academics, rather than simply physical appearance.The need to replace sexualized images with positive images of females endorsing notions other than physical beauty is vital. The goal should be to deliver messages to all adolescents, boys and girls, which lead to healthy, safe and realistic development. Our government has an obligation to protect its citizens from harmful and dangerous things; ultimately, these things are under the government’s control. The negative influences generated by media on young girls should be taken into consideration and should be diminished, even if that means comprising the few positives.This lasting controversy is clearly a conflict between the values of health, safety, self-esteem, and ethical choices of teenage girls on one side, and the support of logical evidence and standpoints and the parental supervision aspect on the other. While promoting positive messages to youth through the media is the ultimate plan and goal for supporting the change in images presented by the young girls about young girls, every solution can back fire.Some may believe that attempting to transform the media is a waste of time because these corporations behind it all will not bend easily since the obvious result and reason for a lack of good conscience is loss of profits and loss of the number one selling point, sex. However, if enough people take a stand and stop buying products with discriminating and insulting ad campaigns, turn off the television shows displaying high school students having sex and doing drugs, stop allowing their children to go see the movies that encourage and reward poor behavior among teens, then a demand will not go nnoticed. This may force those corporations responsible for the media to change this rising controversial moral problem and take us one step closer to having healthier, happier, growing young girls, rather than confused, pressured, unsatisfied, and vulnerable young teenage girls living everyday of their lives engulfed by an array of poor images and trying to live up to a image that is unhealthy, unsafe, unethical, or simply just doesn’ t exist.Works Cited Durham, Gigi. The Lolita Effect. New York: Overlook P, The, 2008. Killing Us Softly 3: Advertising's Image of Women. Dir. Sut Jhally. Perf. Jean Kilbourne. 2001. â€Å"TV Ratings. † The TV Parental Guidelines. 2008. 1 Nov. 2008 . Wagner, Viqi. Eating Disorders. New York: Greenhaven P, Incorporated, 2007.

Analysis Of The Poem The Son Laughs - 2088 Words

This poem is written entirely of images describing icicles and the son s reaction to them. When we first see the icicles frozen and suspended from the railing and are shown in their different shapes and sizes and the way they collect and reflect light. We hear the sounds of the icicles breaking off as the sun begins to change them back to liquid form. The son laughs and breaks one off and touches his lips with it. The poem is full of imaginary that affects our senses of sight, hearing and touch. React: The setting for this poem is a father and his small son are outside on a sunny winter’s day watching the melting icicles that are attached to an exterior railing. When I read this I could picture standing outside on an early spring day†¦show more content†¦Connect: This poem made me remember when I was a kid living on the family dairy farm and there would be that first day, late in the winter season where the sun would come out and start to melt away what the winter had created. The sun would be bright and warm and reflecting all around from the whiteness of the snow and the icicles that hung from the eves of the house and barn, almost touching the ground. Question: The question I have is. I wonder what the purpose was as to why the author wanted the reader to experience the icicles from a young child’s point of view. Was he trying to make the reader remember what a wondrous place the world can be by taking us back and let us see the world with fresh eyes that have yet to experience the roadblocks that life can throw at a person at any given time? Did he write this poem with the intention that at least for a few minutes we could go back and remember what it is like to be a kid again? Journal # 9: We Real Cool Read: The poem We Real Cool is short and sends a powerful message about dropping out of school by showing the reckless lives and the tragic fates of seven dropouts. The poem shows that dropping out of school and roaming the streets is not cool, but only a dead end street. When I read the title I thought that it was going to be about a group of people who was having fun at a pool hall, but that is not the case. It is about a group of troubled