What is the maximum amount of moles of p2o5 that can theoretically be made from 136 g of p4 and excess oxygen

The maximum number of moles of theoretically made is 2.194 moles.

Explanation:

To calculate the number of moles, we use the equation

Given mass of = 136 g

Molar mass of = 123.9 g/mol

Putting values in above equation, we get:

The chemical equation for the formation of follows:

Oxygen is present in excess, so it is considered as an excess reagent.

is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

If 1 mole of is producing 2 moles of

So, 1.097 moles of will produce = of

Hence, the maximum number of moles of theoretically made is 2.194 moles.

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole