Rate of Reaction - Sodium Thiosulphate and Hydrochloric Acid Aim Investigation, to find out how the rate of reaction between Sodium Thiosulphate and Hydrochloric acid is affected by changing the concentration. Introduction I must produce a piece of coursework investigating the rate of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of development of a product during a chemical reaction. It is measured by dividing 1 by the time taken for the reaction to take place. There is five factors which affect the rate of a reaction, according to the collision theory of reacting particles: temperature, concentration (of solution), pressure (in gases), surface area (of solid reactants), and catalysts. I have chosen to investigate the effect of concentration on the rate reaction. This is because it is the most practical to investigate. Dealing with temperatures is a difficult task especially when we have to keep constant high temperatures. Secondly the rate equation and the constant k changes when the temperature of the reaction changes. We have no gases and solids involved therefore it is easy to deal with solutions. Similarly the use of a catalyst complicates things, and if used incorrectly could alter the outcome of the experiment. The theory behind this experiment is that 'Increasing the concentration can increase the rate of the reaction by increasing the rate of molecular collisions.' GRAPH I will place the reaction mixture on a paper with a black cross-drawn on it. When the cross is completely obscured, the reaction will have finished. The time taken for this to happen is the measure of the rate of reaction. We must do this several times, and change the concentration of Sodium Thiosulphate. The rate of reaction is a measure of the change, which happens during a reaction in a single unit of time. The things that affect the rate of reaction are as follows: · Surface area of the reactants · Concentration of the reactants · The temperature at which the reaction is carried out · Use of a catalyst Reaction equation is mentioned above but rate equation could only be decided by doing experiments. So the following procedure can be used to carry out the experiment. Plan Equipment · 2 Measuring cylinders · Beaker · Stopwatch · Paper with black cross on it · Sodium Thiosulphate (different concentrations) · Hydrochloric acid (same concentration each time) · Water (different concentrations) · Pipette Prediction I predict that the greater the concentration of Sodium Thiosulphate
“According to Humane Society International, animals used in experiments are commonly subjected to force feeding, forced inhalation, food and water deprivation, prolonged periods of physical restraint, the infliction of burns and other wounds to study the healing process, the infliction of pain to study its effects and remedies, and "killing by carbon dioxide asphyxiation, neck-breaking, decapitation, or other means.”(Peta). Have you ever wondered if a product you own was safe to use? Did you know that millions of animals are tested on each year for the daily products you use? According to Peta, around 26 million animals are tested each year in the United States for scientific and commercial testing. Animals are used to develop medical treatments, determine the toxicity of medications, check the safety of products destined for human use, and other biomedical, commercial, and healthcare uses (Peta). Animals are harmed or sometimes even killed in this process. Animals are not the same as humans, therefore; the testing done on Animals is not helping our human society, it’s hurting the animals. There are alternative ways to performing testing rather than testing on animals.
This topic may be one of the most ever argued, but I feel that the only argument against animal testing that people use is, “No, please, animal testing can kill all of the animals, it’s cruel, it’s inhumane, and you’re a terrible human being.” Okay, Of course this isn’t untrue, but like I said, animal testing can bring many benefits. For example, animal testing has led to the founding of many life-saving cures and treatments. According to the US-based Foundation Biomedical Research, “animal research has played a vital role in virtually every major medical advance of the last century - for both human and veterinary health. From antibio...
The term animal testing refers to procedures performed on living animals for purposes of research. The testing is used to research basic biology and diseases, to evaluate the efficiency of new medicinal products, and test the human health and environmental safety of consumer and industry products such as cosmetics, household cleaners, food additives, pharmaceuticals and industrial chemicals. All procedures, even those classified as “mild,” have the potential to cause the animals physical as well as psychological distress and suffering. Often the procedures can cause a great deal of suffering. Most animals are killed at the end of an experiment, but some may be reused in subsequent experiments (Humane Society, 2016). Animal testing is by no
Many drug administers reports that 92 out of every 100 drugs that pass animal tests fail in people so we are killing animals just so we can get medicine and drugs that don’t even work for us so why even test the animals if we are going to fail when the drug and medicine passes the animals test and it’s pretty obvious that animals has quality’s like us but they’re not exactly like us like how pigs have the same type of skin like material that we have but it’s not exactly the same as our skin so just because they make a skin lotion that works on pigs it doesn’t mean that it going to work exactly the same way that it worked on the pig it might even killed you or give you a skin disease so basically there is no reason to use animals for testing because it might not even work for us even though it worked for th...
Throughout history, animal testing has played an important role in leading to new discoveries and human benefit. However, what many people forget are the great numbers of animals that have suffered serious harm during the process of animal testing. Animal testing is the use of animals in biological, medical, and psychological studies. The development and enhancement of medical research has been based on the testing of animals. There are many questions being asked if animal research is good or not or if the benefit for us is way greater the abuse of animals. Doing tests on animals can help find ways to cure diseases, but testing on them is wrong. Although we want to find cures for diseases to help many people, testing on animals not only brutally hurts them but it also denies the animals the rights they have.
The aim is to find out if changing the concentration of the hydrochloric acid solution has an effect on the time taken for the reaction. The reaction that will take place is: Hydrochloric acid + Calcium Carbonate + Calcium Chloride + Water + Carbon dioxide 2HCl (aq) + CaCo3 (s) CaCL2 (aq) + H2O + CO2 (g). Collision theory - Collisions between reactant particles are needed. for the reaction to take place in order to form a product.
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
Many have false perceptions of what animal testing really is and does. Scientists are using our animals to test the safety of products such as drugs, cosmetics, household cleaners, food additives, and pharmaceuticals, but are not keeping these creatures safe while doing this (Humane, 1). It is not a simple blood test that is then taken into the lab and studied, it is a much more lengthy and gruesome process. This type of treatment to the animals does not put them in the right condition to be used for scientific data. There are few people who actually know how harmful animal testing is. Animals suffer just like humans do, just because
Animal testing has eradicated many diseases that once threatened the human race, like rabies, anthrax, and cardiovascular diseases. Thanks to animals like mice and rats, which are mainly used for testing, the cancer survival rate has gone up. Most animals that are tested usually have short life
You can speed up the reaction by stirring the solution. 8. You can also change the rate of the reaction by adding a catalyst, which is something that speeds up the reaction. In my experiment I will change the temperature of the hydrochloric acid. I will not change anything else; I will keep the amount of calcium carbonate, the form of calcium carbonate, the concentration of hydrochloric acid, the surface area of the calcium carbonate and the amount of hydrochloric acid all the same.
Have you ever heard of the phrase, “ don't do things to others that you wouldn't want upon yourself”? That is exact attitude that should go towards animals when we test on them. We put animals in laboratories and perform tests on them that we would never dream of, or even allow doing on humans. Animal testing should be made illegal for our safety and to spare animals the pain that animal testing brings. Animal testing is bad science, dangerous to both humans and animals, and immoral.
While some may argue that animal testing is helpful because it will make medical breakthroughs, and not to mention it will save many of people that have been touched by a disease, sickness or illness. It is more true that during these breakthroughs animals will suffer and die. These innocent animals are abused and through the test will become weaker. Some evidence to prove this is that millions of animals are encaged and are abused for testing. Meanwhile the conductors do nothing about it and let these animals suffer
Many animal lovers keep pushing to ban animal testing around the world. But, most people do not really know the science behind animal testing, or how it works. Animal testing is a commonly known, controversial issue. People usually have a strong opinion on animal testing, either that it should be outlawed or that it scientifically makes sense to do. Testing on animals should not be banned because it is an efficient, effective, helps not only humans. First of all, animal testing is very efficient and effective. Without animal testing, diseases like polio, mumps, diphtheria, rubella, and hepatitis would not be curable (Trull). Second, many people think testing on animals is only beneficial for humans. But, lots of treatments for other animals
My aim in this piece of work is to see the effect of temperature on the rate of reaction in a solution of hydrochloric acid containing sodium thiosulphate. The word equation for the reaction that will occur in the experiment is: Sodium thiosulphate + hydrochloric acid →, sulphur + sulphur dioxide +. sodium chloride + water ? where the sulphur is an insoluble precipitate.
Animal testing is not only a morally offensive behavior but also the darkest side of human nature.The animal suffers, feels pain or becomes happy or sad as per the situations, but people have been subjecting animals for medical, cosmetics, new drug or chemical testing purpose without considering the suffering that they may be experiencing. According to the article, People for the Ethical Treatment of Animals, “Each year, more than 100 million animals—including mice, rats, frogs, dogs, cats, rabbits, hamsters, guinea pigs, monkeys, fish, and birds—are killed in U.S. laboratories for chemical, drug, food, and cosmetics test.” The worst news is that the majorities of these experiments do not contribute to improving human living standards. However the numbers of experimenters who believe there is no curing for possible without doing an experiment in animals. I agree with Ty Johnson in his position paper Animal Testing is Inaccurate, Unbeneficial that Animal testing should be banned for human health and behavioral reasons.