Using english to Predict rendement of product a reaction

Predict Rendemen of Product a Reaction

In chemistry, the chemical yield, the yield of the reaction, or only the rendement is reduced to the amount of reaction produced in the chemical reaction. Absolute rendement can be written as weight in grams or in moles (molar yield). The relative yield used as an effective calculation, calculated by the sum of the amount of product produced in moles by the theoretical yield in moles:

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%

Problems example :

If the reaction between 6 grams of ethane C2H6 (Mr = 30) with 7.1 grams of Cl2 (Mr = 71) yields 5.16 grams of C2H6Cl (Mr = 64.5) then the percentage of ethylchloride rendement is ...

Answer :

In this case we are required to calculate% C2H6Cl, so let's compare facts and theories :

FACT :

The resulting C2H6Cl period = 5.16 grams

THEORY:

We look for the C2H6Cl period that results from the reaction

The reaction is happening

Theoretically C2H5Cl resulting from the reaction is 0.2 mol