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Affect of concentration on rate of reaction
Investigating rates of reaction lab
Affect of concentration on rate of reaction
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Reaction Rate Investigation
Planning
I am trying to work out the rate of reaction between marble chips
(calcium carbonate) and Hydrochloric acid. This will be my plan of how
to carry out my investigation.
There are many factors, which I could change in this experiment. These
are
1) Concentration. An increase in concentration means there are more
particles. More particles means there will be more collisions.
2) Surface Area. Breaking the solid into smaller pieces will increase
the surface area exposed to the other reactant.
3) Temperature. Increasing the temperature will cause the particles to
move faster. When particles move faster, more collisions occur and the
collisions are more violent. This should increase the reaction rate.
All of these factors will affect the reaction rate, but I have decided
to change the concentration of Hydrochloric acid. This will determine
the rate of reaction by measuring the amount of Carbon Dioxide given
off.
As I will only change one factor, I will have to keep other factors
constant. These will be: -
1) The temperature
2) The size of the marble chip
3) The same apparatus will be used throughout the experiment
I predict that as the concentration of hydrochloric acid increases and
it becomes more concentrated, the more Carbon Dioxide will be given
off. As the concentration increases the chip will fizz more violently.
When the concentration has been doubled, the reaction will have
doubled.
The reaction rate can be increased if the concentration of the
reactant is raised. As there are more particles to react with in a
higher concentration of acid, the chance of an effective collision
goes up. I have performed similar experiments and have acquired this
equation:
Calcium + Hydrochloric Calcium + Carbon + Water
===============================================
Carbonate Acid Chloride Dioxide
The reaction rate is also known as the collision theory. This is when
successfully 2 particles collide with each other and give off a
successful product. This is as shown below:
For my experiment I will use 5 different concentrations of
hydrochloric acid. These are:
0.5M 1M
1.5M 2M
2.
Edna learning to swim while at Grand Isle is significant. At first, a certain ungovernable dread hung about her when she was in the water, unless there was a hand (presumably a man’s) near by that might reach out and reassure her.19 As she gains confidence, like a “little tottering, stumbling, clutching child, who of a sudden realizes its powers”20 she swims farther out than she has before, though her husband is watching from the beach to reassure her when she admits she thought she might not make it back to land. It isn’t until after she returns to New Orleans that she becomes fully aware of herself and the hopeless situation she is in. She attempts independence, moving out of the family home and into a smaller one in a slightly worse part of town. She tries to nurture her artistic inclinations and beings an affair with a local playboy, but continues to be dissatisfied with life. Adele Ratignolle’s domestic bliss depresses her, and shortly after his return Robert quickly abandons her, supposedly with the best of intentions. Driven back to Grand Isle where her awakening began, “like some new-born creature,”21 Edna swims out to sea with no intention of returning. She admits to herself that one affair would lead to another, and she would eventually forget Robert.
The activation energy is reduced so that there is a better chance of particles having enough energy to react. Reactants will need less. energy to react to. 2. What is the difference between a..
If this does not occur then no chemical. reaction will take place. The reaction must also have enough energy. this can be affected by temperature, the more heat the particles have. the faster they move and so the more energy there is therefore more chance of successful in the collisions.
The film ‘Minority Report’ directed by Steven Spielberg was released in 2002 and is set in the future of 2054. The main idea for Minority Report, is about a crime unit, which is set around 3 psychic twins, the ‘pre-cogs’ who have the ability to see brutal crimes before they are to occur. The pre-cogs are rested in a room, also called ‘The Temple’ where they are nurtured and their visions are recorded. The pre-crime unit, equipped with advance tech rush to the scene and stop the crime before they occur. Tom Cruise being the action movie star he is, playing the on-the-run pre-crime cop role of John Anderton, paired with Steven Spielberg at his directional best, make a significant work of art. Spielberg uses various techniques to portray several ideas to directly show the viewers a certain message.
People can be “blinded” to the truth. The answer to their question or solution to their problem may have been obvious. Yet, they could not "see" the answer. They were blinded to the truth. Associations have been made between being blind and enlightened. A blind person is said to have powers to see invisible things. They "see" into the future. The blind may not have physical sight, but they have another kind of vision. In Sophocles' King Oedipus, Teiresias, the blind prophet, presents the truth to King Oedipus and Jocasta. Oedipus has been blinded to the truth his whole life. When he does find the truth, he loses his physical vision. Because of the truth, Oedipus blinds himself. Jocasta was blind to the true identity of Oedipus. Even when she found out the truth, she refused to accept it. In this case, those who are blind ultimately do have a higher vision - the truth.
Investigating the Rate of Reaction Between Marble Chips and Acid Introduction This is a test to demonstrate the reaction rate between marble chips (CaCO) and hydrochloric acid (HCl). Hopefully we will be able to prove that the concentration of the acid is directly proportional to the reaction rate. Aim To discover if the concentration of acid is directly proportional to the rate of reaction, by monitoring the amount of gas given off as the reaction takes place. Prediction We believe that the concentration of the acid will be directly proportional to the rate of reaction. We believe this due to the following theory: [IMAGE]The collision theory: This theory states that for a reaction to occur the reactant particles need to react with sufficient energy.
“Could you go get your mom?” I cried, “I can’t handle this anymore, we need to go to the hospital.”
Sometimes in life people can be “blind” to the truth. The answer to their question or solution to their worry or problem may have been obvious yet, they could not “see” the answer. Therefore, they were blind to the truth. This blindness is not one in a physical sense but another kind of sight or vision. In Sophocles’ writing, Tiresias is a blind prophet that presents the truth to King Oedipus. Tiresias reveals that Oedipus has been blind to the truth his whole life and when he finally does find the truth, he loses his physical vision by saying, “so, you mock my blindness? Let me tell you this. You with your precious eyes, you’re blind to the corruption of your life.”(Sophocles) In this case, those who are blind ultimately do have a higher vision- the truth. The theme of sight versus blindness in Sophocles’ work
Edna’s dissatisfaction of her life is displayed by Chopin when she begins to feel confined and trapped. As Robert and Edna grow closer she discovers her misery with the life fated for her. In the beginning of the novel Edna meets Robert at Grand Isle and they start to spend more time together. Edna enjoys her time with Robert and is soon clear that Robert does too as they often expressed “…occasional words, glances or smiles which indicated a certain advanced stage of intimacy and camaraderie…” (). Edna realizes the difference Robert makes in her life and eventually falls in love with him when he moved to Mexico at a moment’s notice. As a Creole woman Edna finds
Many times people are blind to the truth that is right in front of them. The solution to their problems may have been blatantly obvious, however, they could not actually “see” their answer by their blindness to the truth. There have been instances where being blind is not actually a handicap, but more of a tool to see things to a deeper meaning. Although the blind may not have physical sight, they have another kind of vision. In Sophocles’ play, Oedipus the King, Tiresias, the blind prophet, addresses the truth of the prophecy to Oedipus and Jocasta. Oedipus has been blind to the truth of the prophecy of killing his father and marrying his mother his whole life. Once Oedipus discovers the truth, he loses his physical vision by blinding himself. Within these cases, the central theme of blindness can be expressed by Oedipus’s ignorance to see the higher vision- the truth
The Yellow Ribbon Project was founded in 1994 by the Family And friends of Mike Emme. Mike Emme took his life in 1994 due to NOT know that there were better choices for his life. He left a letter to his parents saying “Don’t blame yourselves, Mom and Dad, I love you.” It was signed, “Love Mike 11:45 p.m” His parents pulled in the driveway at 11:52. They were too late. Mike rescued this 1968 Ford Mustang from a field where it had sat. He basically made it now, when he was restoring it, he painted it this beautiful bright yellow color. Mike was a good kid, if anybody needed help with their cars, he was there to help. The night before Mike's funeral, his friends made cards with inspirational sayings that pertained to not commit suicide, they pasted yellow ribbons on every single one of them (the ribbons are shaped the same way as the cancer ribbons are.) Three weeks after Mike's funeral, a phone call came from a teacher in Wyoming. A student had given her one of the bright yellow messages from Mike's funeral. The teacher called because she wanted to get help for teens in her area. People from everywhere started to call. Teens also began to call and write asking to help with this organization. It was a nice effect for everybody. For one of my interview a blog that I myself made for this project did...
The story of Rama, a main character, has impacted the literary imagination for Indian and Asian culture. It is a fiction of good versus evil and clearly reveals a variation of oral dispersion. The Ramayana of Valmiki is embedded in Hindu tradition and includes characteristics of Western epics similar to Achilles’ story. One of the Hindu principles seen in this work was the concept of dharma; a life lived with moral righteousness. The story endures in its use of dialogue and description that builds an epic tale of rescue and redemption. Valmiki’s Ramayana has long been thought to offer positive models to follow a path of righteous living that has been used throughout the Oriental history.
Everyone is blind, in one way or another. Society claims, if a person sees with their eyes, they have the ability to clearly see the world around them. However, the ability to see physically, may blind a person from being able to see the truth. Sophocles introduces this idea of physical versus mental blindness in the play, Oedipus the King. The reader follows Oedipus on his search for the truth. Through juxtaposition Sophocles shows, the metaphorical blindness of the main character in contrast the mental clarity the blind man possesses. Pairing with this thought, the author validates this idea of blindness through dramatic irony. The reader sees the truth, while Oedipus remains blind. Despite the common perception that blindness is only of the sight, Sophocles proves that no man has the capability of full clarity.
The history of the computer dates back all the way to the prehistoric times. The first step towards the development of the computer, the abacus, was developed in Babylonia in 500 B.C. and functioned as a simple counting tool. It was not until thousands of years later that the first calculator was produced. In 1623, the first mechanical calculator was invented by Wilhelm Schikard, the “Calculating Clock,” as it was often referred to as, “performed it’s operations by wheels, which worked similar to a car’s odometer” (Evolution, 1). Still, there had not yet been anything invented that could even be characterized as a computer. Finally, in 1625 the slide rule was created becoming “the first analog computer of the modern ages” (Evolution, 1). One of the biggest breakthroughs came from by Blaise Pascal in 1642, who invented a mechanical calculator whose main function was adding and subtracting numbers. Years later, Gottfried Leibnez improved Pascal’s model by allowing it to also perform such operations as multiplying, dividing, taking the square root.
The influence of the electronic devices, multimedia and computers are the things that dealt with our daily life. Especially the internet that is now giving more importance to each and every one, by giving the newest outstanding media that surely will give the outmost future ahead of us. (Temmel)