Rendement refers to the amount of reaction product produced in the chemical reaction. 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.
The formula for calculating the following rendamen:
for example :
If the reaction between 6.0 grams of ethane, C2H6 (Mr = 30) with 7.1 grams of Cl2 (Mr = 71) yields 5.16 grams of C2H5Cl (Mr. 64.5), then the percentage of ethyl chloride rendement is ....
Discussion:
C2H6 + Cl2 → C2H5Cl + HCl
C2H6 = 6/30 = 0.2 mol
Cl2 = 7.1 / 71 = 0.1mol (discharged)
C2H5Cl (theoretical) = 1/1 x 0.1 mol = 0.1 mol
= 0.1 x 64.5 g =
6.45 g
% Rendemen = 5.16 / 6.45 x 100% = 80%.
I just wanna correct your statement "C2H5Cl (theoretical) = 1/1 x 0.1 mol = 0.1 mol
BalasHapus= 0.1 x 64.5 g = 6.45 g" thats correct os 64,5g/mol cause it's the mollecule relative...hehehehe
@hudiahudhud
Yes it happens to be the same
HapusPlease explain the yield of the combustion reaction?
BalasHapusFor example I have no burning reaction results, but usually the combustion reaction involves oxygen in the reaction and can only get the result
HapusBased on the example you made, you need 6 gr of ethane. What if i need only 1 gr of ethane. How to predict% of it?
BalasHapusIf we use 1 g of ethane it will produce 0.03 mole ethane then ethane will be reacted, it will produce 0.03 x 64.5 = 1.935 gr,% rendement = 5.16 / 1,935 x 100% = 266%
HapusThe ideal chemical rendement value is 100%, a value that is highly unattainable in its practice. In your opinion, why did this happen? What factors cause it?
BalasHapusBecause the given result is a theoretical result, where the result can be in a way, or un different conditions. There are many causes causing such things as the room temperature factor, the concentration of the substance used, the pressure applied, the touch surface area, and the catalyst
HapusWhat is the different between rendemen and yield?
BalasHapusMay be the same if we change from google translate it will be yield, example said "rendemen fraksional" Will be "Fractional yield"
HapusWhy the yield of rendemen is always lower than the mathematical calculation?
BalasHapusThe answer is, cause the yield of chemichal reaction decrease before be a product and we don't know how much the reaction need the element so we just can predict
Hapus