In Jane Austen's novel "Pride and Prejudice," Mr. Collins is a character who is quite memorable due to his ridiculous behavior and ridiculous beliefs. One of the key aspects of Mr. Collins' character is his age, which is mentioned several times throughout the novel.
Mr. Collins is described as being a man in his late 20s or early 30s, which was considered to be relatively old for a single man at the time the novel was written. This is significant because it indicates that Mr. Collins is at an age where he should be considering marriage and settling down, but he has not yet done so.
This is partly due to the fact that Mr. Collins is a clergyman, and as such he has been able to postpone marriage in order to focus on his career. However, it is also clear that Mr. Collins is not particularly popular with the ladies, as he is described as being pompous and self-absorbed.
Despite his advanced age, Mr. Collins is still very much a child in terms of his emotional maturity and his understanding of the world. He is heavily influenced by his patron, Lady Catherine de Bourgh, and is prone to acting in a manner that is self-serving and obsequious.
Overall, Mr. Collins' age is an important aspect of his character because it helps to explain why he is the way he is. It also serves as a contrast to the younger characters in the novel, such as Elizabeth Bennet, who are much more self-aware and confident.
Rate Of Reaction Of Hydrochloric Acid And Magnesium
The other variables are the temperature of the acid at the beginning, the volume of acid, the surface area of the magnesium strip, the length of the magnesium strip and if the magnesium strip is cleaned or not. This idea also explains why the reaction between magnesium and hydrochloric acid slows down as time goes on: 1 2 — Acid Particle — Water Molecule — Magnesium Atoms 1. Level 2 3-4 marks Add calcium carbonate powder to a conical flask. The acid particle bounces away again. Surface area of Magnesium ribbon: This will be changed by using Magnesium ribbons and powdered Magnesium metal in separate experiments. It is important in this practical to use appropriate apparatus to make and record a range of measurements accurately, including mass, time and volume.
What is the reaction of hydrochloric acid and magnesium ribbon?
Given that, the experiment was carried out under the same conditions, the data obtained are reliable and generalizable. It is also possible to collect the gas in an inverted measuring cylinder in place of the gas syringe. How much more frequently they collide can be calculated - the average speed of molecules is proportional to the square root of the absolute temperature. As the concentration of acid increases the number of acid particles also increases, this will therefore increase the number of successful collisions with the magnesium. Repeat these steps with other concentrations of hydrochloric acid as well keep the volume the same. What was the purpose of the magnesium and hydrochloric acid experiment? Hypothesis: Powdered Magnesium metal will reduce the reaction duration by a half if used in place of equivalent length of magnesium ribbon, when reacted with hydrochloric acid. Measure how much gas has been produced every 20 seconds, and record in a table.
What is the reaction between magnesium and hydrochloric acid?
The experiment will be carried out at room temperature 25 0C The study variables are summarized in the table below: Variables Operationalization of variables The dependent variables The duration of reaction, time taken for Magnesium to dissolve in hydrochloric acid completely measured using a stopwatch in seconds. Results Time seconds How much Hydrogen produced for each concentration cm3 0. Light the magnesium metal with a Bunsen burner and record your observations. The reaction was stopped at 621. The introduction to the lab should be about chemical reactions in general why they are important, examples of specific types of chemical reactions such as combustion, precipitation, redox, etc.
Rate of reaction between Hydrochloric acid and magnesium
When the metal is powdered, many more atoms are exposed. This reaction was very slow with a time of 4, 43. In the hypothesis, it was predicted that the temperature will be inverse proportional to the time Berocca tablet reacts with water to produce 50ml of carbon dioxide gas. The fastest reaction made was with no water, 60 cm 3 of sodium this sulphate and 10 cm 3 acid. The second one is to show how increasing the mass of the magnesium strip can increase the rate of reaction slightly because of the increased surface area but it is only slightly increased on the sides and so this is proportional to the rate of reaction of the original diagram. Repeat these steps with 1. This brought a slight confusion in stopwatch reading.
Rate of Reaction of Magnesium and Hydrochloric Acid
Compare the results to find out which reaction has a faster rate. Ten subjects reaction time was evaluated with a computer simulation program using one, two, or four choice trails, which lasted forty to sixty minutes. The more collisions with sufficient energy increases rate of reaction. The results for each 10 second interval were not accurate enough and there was not enough magnesium to get a high level of hydrogen. It would be difficult to work out an accurate reading of the surface area if I was to choose the surface area as my independent variable. As the temperature increases the Chlorine and Magnesium Lab Introduction During my observation I noticed that when 10mg of magnesium metal was added to the beaker a shaded area appeared on the bottom of the beaker. Retrieved March 8, 2012, from chemguide.
