Using English To Predict Rendement Of Product A Reaction

Chemical Rendement

Rendement is actually a term in the field of chemistry studies. The yield represents the inaccuracy of the reaction result, which results always lower than the mathematical calculation. For example, in a chemical reaction, should produce a substance weighing 100 grams, mathematically, but in reality the results obtained only 90 grams. Unconsciously this also often happens in our daily lives loh.

Have you ever experienced getting results that are below your target? Suppose you target the test you get the value 80, but once the results get only 70 or 60. Another example is in the field of sales. Many sales people get the sales results below that they should achieve. It's strange is not it?

Now the recipe for defeating this theory is to target even more, so that if you do not reach the target too, you still get better results. For example if you are going to take a test, then your target should be 100, so you will do more to meet the target, so for example you get a score of 90 or 80, even if it remains below your expectations, the results are still better Than you are only targeting 80 results.

Once in a sales team within the company, there are 4 people in the team. Each of them is targeted by the company to get 150million sales per month. After a few months, the evaluation arrived, the first person only managed to get an average sales of 110 million per month, second person only worth 100 million per month and third person worth 90 million per month. From one team only the fourth person who managed to reach the target of 150 million even in the last month he managed to get 170 million worth of sales in a month. Then this fourth person was asked by the owner of the company who was satisfied with the achievement of this fourth person, how he managed to achieve the target company when compared with the previous three people who failed. He also replied that although the company is targeting 150 million per month, he targets to achieve 500 million per months! That's the key to success, targeting more.

The saying never says that hang your dreams up to the sky, so that when fallen, it will still be caught in the stars. So, always dream bigger and reach bigger. warning, you always below your target !!!

In chemistry, the chemical yield, the yield of the reaction, or only the rendement refers to the amount of reaction product produced in the chemical reaction. Absolute rendement can be written as weight in grams or in moles (molar yield). The relative yield used as a calculation of the effectiveness of the procedure, is calculated by dividing the amount of product obtained in moles by the theoretical yield in moles:

Fractional Rendement  = Actual Rendement/Theoretical Rendement

To obtain a percentage yield, multiply the fractional yield by 100%.

One or more reactants in chemical reactions are often used redundantly. The theoretical rendement is calculated based on the number of moles of the limiting reagent. For this calculation, it is usually assumed that there is only one reaction involved.

The ideal chemical yield value (theoretical rendement) is 100%, a value highly unlikely to be achieved in its practice. Calculate the percentage of rendement that is by using the following equations percent rendemen = weight yield / weight of yield divided by the sample weight multiplied by 100%

Rendement is the ratio of the amount (quantity) of oil produced from the extraction of aromatic plants. Rendemen use percent unit (%). The higher the yield value indicates that the value of the oil produced is more.

Increasing the yield or the ratio of the amount of oil produced can be done with two approaches,

First, the process of cultivation.

Second, the process of making oil

The quality of the oil produced is usually inversely proportional to the number of rendaments produced. The higher the resulting rendamen the lower the quality obtained. 

Various kinds of chemical reactions

By knowing some properties or types of reactions, we can understand the chemical reactions more easily. Generally, chemical reactions are classified by type as follows:

1. Reaction of merging

2. Decomposition reaction

3. Reaction of change (single exchange reaction)

4. Metathesis reaction (multiple exchange reaction)

1.      Reaction Of Merging Or Synthesis Reaction

The merging reaction is a reaction in which two substances merge to form a third substance. The simplest case is when two elements react to form a compound. For example sodium metal reacts with chlorine gas to form sodium chloride. The equation of the reaction:

2Na (s) + Cl2 (g) → 2NaCl (s)

Other merging reactions involve the compound as reagents. For example: phosphorus trichloride reacts with chlorine gas to form phosphorus pentachloride. The equation of the reaction:

PCl3 (l) + Cl2 (g) → PCl5 (s)

2.      Decomposition Reactions

The decomposition reaction is a reaction when a single compound reacts to form two or more substances. Usually this reaction requires a rise in temperature for the decomposable compound by increasing the temperature eg KclO3. This compound when heated will decompose into KCl and oxygen gas. The equation of the reaction:

KClO3 (s) → 2KCl (s) + 3O2 (g)

Decomposition of potassium chlorate is commonly used to generate laboratory oxygen gas.

3.      Exchange Reactions

Reaction of a change or also called a single exchange reaction is the reaction in which an element reacts with a compound to replace the element contained in the compound. For example, if the copper metal plate is immersed in a silver nitrate solution, a silver metal crystalline is produced. The equation of the reaction is:

Cu (s) + 2AgNO3 (aq) → 2Ag (s) + Cu (NO3) 2 (aq)

Copper replaces the silver contained in silver nitrate, producing a solution of copper nitrate and silver metal. If the logamseng plate is immersed in a blue copper sulphate solution, then on the surface of the zinc metal there will be a red copper deposit, and the blue color of the solution slowly fades. This shows that zinc reacts with copper sulfate to produce copper metal and a colorless zinc sulfate solution.

4.      Metathesis reaction

The reaction of metathesis or multiple exchange reactions is a reaction involving the exchange of parts of the reactants. If the reagents are ionic compounds in solution form, the exchange portion is the cation and anion of the compound. For example a colorless potassium iodide solution is mixed with lead (II) nitrate solution which is also colorless. The ions in the solution react to form a yellow precipitate of the lead (II) iodide compound. The equation of the reaction:

2KI (aq) + Pb (NO3) 2 (aq) → 2KNO3 (aq) + PbI2 (s)

Iodide ions in the potassium iodide solution exchange with nitrate ions from lead (II) nitrate solution, yield a colorless potassium nitrate solution and a yellow i (y) iodide lead solid, as PbI2.

The acid-base reaction is also called the neutralization reaction, because it occurs the inclusion of the H + charge by the electrically neutral (H2O) water-formed OH. The salt of NaCl formed remains in solution as its ions.

To obtain a percentage yield, multiply the fractional yield by 100%. One or more reactants in chemical reactions are often used redundantly. The theoretical rendement is calculated based on the number of moles of the limiting reagent. For this calculation, it is usually assumed that there is only one reaction involved.

In chemistry, the chemical yield, the yield of the reaction, or only the rendement refers to the amount of reaction product produced in the chemical reaction. The absolute rendement may be written as a weight in grams or in moles (molar yield). The relative yield used as a calculation of the effectiveness of the procedure, is calculated by dividing the amount of product obtained in moles by the theoretical yield in moles