Reaction Rate of Hydrochloric Concentration

Reaction Rate of Hydrochloric niggardnessHydrochloric IntensityThe purpose of the taste was to gather an looking for the chemical responses, depending on the concentration. The post of response is the travel rapidly of the chemical reaction. This look into was to justify if the concentration is high or slump pull up stakes it affect the chemical reaction. Hydrochloric point constitutes the majority of gastric acid, the charitable digestive roving. In a complex process and at a large energetic burden, it is secreted by parietal cells (also known as oxyntic cells). These cells tole gait an extensive secretory network (c each(prenominal)ed canaliculi) from which the HCl is secreted into the lumen of the stomach. They argon part of the epithelial fundic glands (also known as oxyntic glands) in the stomach. The chemical compound hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride gas (HCl). It is a strong acid, the major office of gastric acid a nd of wide industrial use. (LibreTexts. 2017). It is said from (chem4kids.com. 2017) if a reaction has a depressed rate, that means the molecules combine at a unhurried speed than a reaction with a high rate. The encounter surmise was employ to envisage the rate for a chemical reassign, collisions dont everlastingly feature a chemical reaction. A chemical reaction exacts to be equalized for it to have an effective collision. According to (Chemistry LibreTexts. 2017) A collision pull up stakes be effective in producing chemical potpourri besides if the species brought together birth a certain minimum value of internal energy, equal to the energizing energy of the reaction. Furthermore, the colliding species must be oriented in a expression favorable to the necessary rearrangement of atoms and electrons.(askllTians. 2017)The prove that was used, was any 5 test metros fill with the aforementioned(prenominal) amount of sodium thiosulfate and adding to separately anti thetical test vacuum underpass diametric concentrations of hydrochloric acid and timing how fast the reaction rate is. This essay was used to find out if you had different concentrations of hydrochloric acid would it affect the rate of reactions.Na2O3S2 + HCI = SO2sodium thiosulfate +Hydrochloric acid = sulfur dioxideThe chemicals in this test were Hydrochloric acid and Sodium thiosulfate. Research has shown about hydrochloric acid it is a ingredient found in the human beings digestive fluid from (Hydrochloric acid. 2017) it says that Hydrochloric acid constitutes the majority of gastric acid, the human digestive fluid. In a complex process and at a large energetic burden, it is secreted by parietal cells (also known as oxyntic cells). These cells pick up an extensive secretory network (called canaliculi) from which the HCl is secreted into the lumen of the stomach. They are part of the epithelial fundic glands (also known as oxyntic glands) in the stomach. The chemical com pound hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride gas (HCl). It is a strong acid, the major component of gastric acid and of wide industrial use. If the human digestive fluid had a low concentration it would take longer to digest food. Concentration is the intensity of an element or substance in an investigate. Concentration is used in allday life in food, drinks and chemicals added to certain things. sustainThe Aim for this experiment was if the concentration would affect the rate of reaction.Hypothesis The prediction for this experiment was that the reaction time will get faster and slower with each density of hydrochloric acid. Hydrochloric acid and sodium thiosulfate will mix together and develop a yellow substance of solid Sulphur. The controlled variable in this experiment was the concentration and the independent variable was the rate of reactions.5 test tubes2 touchstone cylinders (50ml each)5 different types of hydrochloric acid such as 0.2,0.5,1.0,1.5,2.0 (50ml each)1 sodium thiosulfate 75ml1 test tube rackGlovesGlasses research lab coat3 stop watchesThis experiment started by the collection of the resources and guard duty equipment needed. Followed by the set up of the test tubes in the test tube rack and the mensuration of 5ml of Sodium Thiosulfate for each of the test tubes. 15ml of Hydrochloric Acid of different concentrations ranged between 0.2 to 2.0 added to each test tube as soon as the hydrochloric acid is added the timer was stated and the experiment was observed till on that point werent any more modifications to the chemicals. When the chemicals first had a change the time from when the hydrochloric acid added to the change was recorded into a results table. Once there was no change to the chemicals, the times was also recorded. The experiment was done three times to engender sure there were the best results we could get and incase the results werent precise. After the 3rd round of the experiment s were finished the equipment used was cleaned up and the res publica used and all the resources and safety equipment used was returned.Diagram Risk assessment Basic steps for experiment Risks (low, ascertain, high) prohibition grabbing equipment from the trolley and placing it out It is at a low stake of bumping into people and dropping all the equipmentTo hold open this risk, you will need to walk safely to you working area and be careful with the equipmentWhen measuring the sodium thiosulfate to put in each test tubeIt is at a low risk of spilling the chemicalsTo prevent this risk, you will need to be aware of people around you and safekeeping an kernel on what you are doingWhen measuring the hydrochloric acid to put in each test tube for the first round of experiments It is at a low risk of spilling the chemicalsTo prevent this risk, you will need to be aware of people around you and keeping an eye on what you are doingThe combination of the hydrochloric acid and sodium thi osulfate into the similar test tubesIt is at a low risk of spilling the chemicalsTo prevent this risk, you will need to be aware of people around you and keeping an eye on what you are doingViewing the reactionIt is at a moderate risk you may be injured by the reaction the chemical poseTo prevent this risk, cast sure you have put in the right amount of chemicals and dont be so close while later onmath the reactionAfter repeating the experiment 3 times the area and equipment used will need to be cleaned and washed It is at a moderate risk spilling the chemicals on yourself will cause burning or irritation to the skin or dropping the test tubes and breaking themTo prevent this risk, ware protective gear such as groves, glasses and apron it will protect just about of your body at may experience in impinging with the chemicalsWriting your results It is at a low risk the most that can happen is stabbing yourself with a pencil or pen.To prevent this risk, be carefulThe health effe ct the chemicals havechemical substanceEffectsHydrochloric acid When in contact with skin, your skin will commence corrosive, irritant and it will create burns on your skin. Eye contact it will let irritant and corrosive.Sodium thiosulfate Your skin will become irritant.results taste 1MolBefore subsequentlyreaction0.2 spend a penny substitute to a creamy sinlessness51sec-6.45min0.5 clean-cut pitch to a creamy white48sec-4.54min1.0 work outChange to a creamy white1.10min- 2.28min1.5ClearChange to a creamy white1.20min-2min2.0ClearChange to a creamy white1.15-2minMolBefore laterreaction0.2Clearchange to a creamy white51sec-6.45min0.5ClearChange to a creamy white33sec-4.53min1.0ClearChange to a creamy white26sec- 2.42min1.5ClearChange to a creamy white18sec-2.25min2.0ClearChange to a creamy white58sec-3.3minExperiment 2Experiment 3MolBeforeafterreaction0.2Clearchange to a creamy white41sec-3.15min0.5ClearChange to a creamy white38sec-2.36min1.0ClearChange to a creamy white0.06sec- 1.49min1.5ClearChange to a creamy white45sec -1.27min2.0ClearChange to a creamy white10sec-2.11minDiscussion In experiment 1, it started with the top intricate chemicals all with different concentrations of hydrochloric acid. In the experiment for 0.2M the reaction occurred 51 seconds after combining sodium thiosulfate and hydrochloric acid together and the reaction halt 6.45 transactions after the combining. The hydrochloric acid with a concentration of 0.5M the reaction occurred 33 seconds after the combining and halt 4.53 transactions after. 1M was 25 seconds and stopped at 2.42 minutes after, 1.5M was 18 seconds and stopped after 2.25 minutes after and in conclusion 2M the reaction started at 58 seconds after it was combined and it stopped 3.37 minutes after the combining. Although all the concentrations of hydrochloric acid, the clear liquid it once was changed to a creamy white.In experiment 2, it started the same way as experiment 1. Although some of the results were d ifferent to experiment 1. O.2M it started at 51 seconds and stopped at 6.45 minutes after, it was the same as in experiment 1. The chemical reaction started at 33 seconds and it stopped 4.53 minutes whereas 1M started at 26 seconds and it stilled at 2.42 minutes after it was added. 1.5M was started at 18 seconds whereas 2M started at 58 seconds unless 1.5M stopped at 2.25 minutes and 2M stopped at 3.3minutes. However, all the concentrations in the end change to the same color in experiment 1.Experiment 3, just standardised all the other experiment it was started the same way with the clear tangled chemicals however, the chemical reaction happened when the sodium thiosulfate was being deliberate because it was accidently measured in the hydrochloric acid measuring cylinder so that effected the results for this experiment, so it was measured when it got to a darker shade of creamy white. 0.2M was affected 41 seconds after and it stopped 3.15 minutes after. 0.5 changed 38 seconds a fter and it stopped at 2.36 minutes. 1M was the one that was most effected when measuring the sodium thiosulfate occurred it was recorded in the results that it started at 0.06 seconds and stopped at 1.49 minutes. 1.5M started at 45 seconds and finished 1.27 minutes after finally 2M started at 10 seconds and stopped 2.11 minutes.The Average, when the recording was happening there wasnt person all the time watching the experiment so it may non be quite precise. The average for 0.2M was 5.35 minutes, 0.5M was 3.81 minutes, 1M was 4.58 minutes, 1.5M was 4.02 minutes and finally 2M was 2.47 minutes. This average was only recorded by when the chemical changed stopped.The research collected helped understand what was sack on with the experiment it was known if it had a low concentration is would go slower and it would go faster if it had a high concentration. The Hypothesis was support it did get faster and slower with each density of hydrochloric acid. Although it didnt create a solid yellow substance, the experiment only created a liquid substance. This experiment has created a understanding of what would happen if the human digestive fluid has a much higher concentration it would help digest quicker precisely it would also eat the lining of your stomach.EvaluationThis experiment worked well but there were many mistakes that occurred such as the results were not recorded flop because you needed to keep an eye on the experiment at all times to get the most accurate answer. The other mistake was with the measuring cylinders needed to make sure that this experiment used one for sodium thiosulfate and a another for hydrochloric acid otherwise it will be an inexact answer because the chemicals will already mix when your measuring how much you will needwith one of the chemicals. To improve this experiment, it would have been better if one person is always watching the tests so this experiment would have made the results more accurate and if the measuring cylinders were easier to tell apart so there was a clear distinction of which on was used for that certain chemical.Conclusion In conclusion, the experiment was used to have a better understanding of chemical reactions depending of the concentration. The collision theory was used to rate the chemical change, hydrochloric acid and sodium thiosulfate make a yellow liquid substance. Concentration is also used every single day without most peoples knowledge. The concentration did effect the reaction rate because it either had a high or low reaction rate. The scheme was supported except for the concentration of 2M more information was needed to understand why.BibliographyChemistry LibreTexts. (2017). Reaction Rate. online unattached at https//chem.libretexts.org/Core/Physical_and_Theoretical_Chemistry/Kinetics/Reaction_Rates/Reaction_Rate Accessed 9 Feb. 2017.Encyclopedia Britannica. (2017) chemistry. online Available at https//www.britannica.com/science/collision-theory-chemistry Accessed 5 M ar. 2017.Mar. 2017.Studios, A. (2017). Chem4Kids.com Reactions Rates of Reactions. online Chem4Kids.com. Available at http//www.chem4kids.com/files/react_rates.html Accessed 5 Mar. 2017.Pubchem.ncbi.nlm.gov. (2017) HCI Pubchem. online Available at https//pubchem.ncbi.nlm.nih.gov/compound/hydrochloric_acid Accessed 9 Feb. 2017.Pubchem.ncbi.nlm.gov. (2017). sodium THIOSULFATE Na203S2 Pubchem. online https//pubchem.ncbi.nlm.nih.gov/compound/Sodium_thiosulphatesection=Top Accessed 5