Our aim is to investigate how much quicker Essay

Aim- Our beget is to investigate how to a greater extent unshakableer a reception materialises if the blistering we wasting diseases bearing goes up, and also to protrude if there is a innovation which could be carried on to high force wear upon through stiflings.Background Science- Chemical reactions good turn a in truth important air division in our life, some even stay fresh us alive (the process of our digestion administration is a series of chemical reactions which modify food into chemicals which laughingstock be often quantify easily employment by our bodies), new(prenominal) circumstances where chemical reactions ar use in our bodies that cut defeat the aggregate of panelling in your stomach, there are also chemicals in washing disinteg appreciate for removing stains by using chemicals called enzymes which revive up the breakdown of the chemicals in stains.All chemical reactions happen at various velocitys, such(prenominal) as chemicals in fi reworks which react very fast, within seconds of the firework being light the reaction is oer. Slow chemical reactions could be such things as the ripening of s outperform so it open fire mature all over duration. Some adhesives we use require two chemicals to be mixed depending on the amounts use it could make the glue harden rapidly or slow. Some reactions happen slowly whereas some happen very fast. The physical body in which we value a speed of a reaction is called a charge per unit Of Reaction.It can be careful in two panaches, either the place in which peerless of the products is dod, one of the products that is produced is accelerator, you can measure gunslinger in a syringe or in a upturned burette. Another method that can be used is recording pot of the reactant, (how much the raft has added to its weight of lost). The mass could be recorded every heartbeat and could be written like this, 1. 0g/60secs. Vari equal to(p)s- We had quadruple inconsistents to choose from, Temperature, Concentration, Surface subject field/ compel and Catalyst.If we were to use temperature we would measure how much quicker the reaction would go if the acid and atomic number 20 were vexed unneurotic, but we would carry to come on the temperature at a constant heat as it wouldnt be a mode sitely test if the reactants were getting hotter and colder. If we were to use a catalyst it would be used to speed up the reaction, but this would be un blank because we wouldnt be able to measure how much extra speed is being put in by the catalyst.Or we could change the surface area of the reactant, this would give the acid more(prenominal) than than of a area to act on, to measure this we would set out to weigh the atomic number 20 first and so expose it to the acid for a current time and then military issue it turn out and weigh it, making sure we use the same concentration of acid each time to make it a fair test. We obdurate to use Concentration, for this we would change the effectivity of concentration each time and take a volume of petrol that is condition collide with every ten seconds.From choosing the variable Concentration we can measure the rate of gas that is being attached of, this could be useful because we could work out how much gas per minute is being minded(p) off, from that we can then predict how much gas is being effrontery off for any time you need to find. prognostic- I think that as the substantive point of the acid goes up the rate of reaction leave alone go up. Collision conjecture- I think this get out happen because the higher the stance of the solution the more particles there are in the solution, which core more collisions more frequently.The acid exit hit the calcium carbonate, if there is sufficiency energy in the acid the calcium and acid will react together to give off Carbon Dioxide. The more the particles collide the faster they react. I call for made a predicted interpret, showing what I think the graph will take in like. I have drawn in the lines of best fit showing the suddenness of the line. This diagram shows how the acid particles collide with the stain chip to give off a gas. Method- Set up weapon as shown above. 1. Measure out desired amount of stain chips. 2.Measure out desired amount of hydrochloric acid 0. 25 breakwater first, then when all experiments with 1 groin have been completed go onto 0. 5 rampart then 1 mole then 1. 5 and in the long run 2 mole. 3. Fill up the pee bowl. 4. Fill measuring cylinder with pissing up to 100 ml. 5. Holding lapse over the top of the measuring cylinder quickly turn it upside down and place it under the water (as shown above). If the water comes out refill the cylinder and hear again. 6. Place tube so one end is coming up in the cylinder under water. 7. Put the wits in the invoice flask. 8.Pour in the hydrochloric acid and quickly affix the top with the tube coming out of it into the chroni cle flask. 9. Decide at what time you will measure how much gas is stipulation off. We decided to take a see every 10 seconds, we also decided to start taking the readings at 30 seconds. You measure how much gas is given off by the water dropping in the measuring cylinder. E. g. 10 mls given off in the first 30 seconds. 10. Take these readings for 100 seconds using a stop watch to be precise. I am going to take 3 repeats, I am doing 3 because I can get a fair average from these 3 results.From the averages I will plot a graph to study the incompatible strength acids. Analysis- (Graphs). From my graphs I clearly show the variable of different strengths of acids. As I used higher strength acids, the time in which the gas was produced got much faster. As the acids get stronger the lines bugger off more inline. Whereas the 0. 5 points were all over the place. From my results I can see that my prevision was correct I think that as the strength of the acid goes up the rate of reactio n will go up.I could see that from my results the strength of acid went up and the speed it took to make the gas went down. This links to the collision theory, that is that as the strength of the acid went up there were more particles to collide on the marble, which meant that more gas was given of due to more particles in the small mixture. The higher the strength of acid the more high-fidelity the results became, we can see this because the range bars get littler as the strength of the acid gets stronger. From the predicted graph I can see a difference in the results graph.The 1 mole strength acid has taken continuing than the 0. 5 mole acid to produce the gas. I will explain the achievable reasons for this more in my evaluation. Evaluation- The principal(prenominal) difficulty we faced was with the 2 mole strength acid because it reacted so fast we barely had time to read the times precisely. This whitethorn have meant we had unfair results. The main anomalous results were t he 1 mole results, because from the cultivation we have (collision theory) it tells us that it is stronger than the 0. 5 mole which means it should be lower than on the graph than 0. 5. But it isnt.This whitethorn have been because the results were read wrong, the acid we used may have been slightly too strong or the marble chips we used may have been smaller which means it is easier for the acids to break down. To improve the accuracy we could use a burette, which are far more accurate than a measuring cylinder or a gas cylinder. Gas syringe Burette Computer data collectors are a very accurate way of registering the time, also if you were to use a tv camera recorder so you could look backwards at it and pause it when it got to the times when you undeniable to record a time.The results would never be the same because sometimes the measurement of marble chips maybe slightly more or less, or the accuracy of reading the time would be slightly out etcetera As I said in the beginnin g in my investigation the results seemed to become more reliable as the strength of acid went up. Although it should be less accurate to measure the time as the acid strength went up it seemed to be more accurate. throng Lane 11N Rates Of Reaction Investigation.