Question

Givent the SAE 5. Given that: - Asa, 650₂ Ass +90 Calculate the mass of As.S.required to react with excess O, to give 66. 6 of 90s 6. Given the following reaction calculate the SAE. The major product is CH NOCI. C.H.Cl + HNO CH.NOCl + HO 7. Aspirin C.H.O.) is prepared by the reaction of salicylic acid (CH.Os) with acetic anhydride (CHO). A byproduct of the reaction is acetic acid (CH:02) The equation of the reaction is given below: C.H.O, GHO, C.H.O. + C,H,O, a. How many grams of Aspirin can be produced from the reaction of 100 g of salicylic acid and 10.0 g of acetic anhydride? Assuming Aspirin is the most important product, calculate the SAE of the reaction.

Answer 1

1.Sol :-

Given,

Mass of SO₂ formed = 66.6 g

Gram molar mass of SO₂ = 64.066 g/mol

We know

Number of moles = Given mass in g / Gram molar mass of substance

So,

Number of moles of SO₂ formed = 66.6 g / 64.066 g/mol

= 1.04 mol

Given, Balanced chemical equation is :

As₄S₆ + 9 O₂ -------------------> As₄O₆ + 6 SO₂

From the balance chemical equation :

6 moles of SO₂ are formed by = 1 mol of As₄S₆

So,

1.04 mol of SO₂ are formed by = 1 mol x 1.04 mol / 6 mol

= 0.17326 mol of As₄S₆

Now,

Mass of As₄S₆ = Number of moles of As₄S₆ x Gram molar mass of As₄S₆

= 0.17326 mol x 492.1 g/mol

= 85.26 g of As₄S₆

Hence, Required mass of As4S6 = 85.26 g