For the following reaction, 6.12 grams of phosphorus (P4) are mixed with excess chlorine gas . The reaction yields 21.5 grams of phosphorus trichloride . phosphorus (P4) ( s ) chlorine ( g ) phosphorus trichloride ( l ) What is the theoretical yield of phosphorus trichloride

27.1 gram

Explanation:

To calculate the moles :

The balanced chemical reaction is:

As is the excess reagent, is the limiting reagent as it limits the formation of product.

According to stoichiometry :

1 mole of  give = 4 moles of

Thus 0.0494 moles of give =  of

Mass of

Thus 27.1 g  is the theoretical yield of phosphorus trichloride

answerlinnaeus;