I/GCSE Chemistry: Innovations in green chemistry

In I/GCSE Chemistry, we will learn about innovations in green chemistry .

Regulations are put in place for the storing and transporting of chemicals. Hazard symbols and sealed containers prevent harm from coming to people + environment.

In I/GCSE Chemistry, Preventing pollution: 1) New method 2) Use renewable + cost effective resources

Green chemistry benefits:

1. Increases efficiency                2) Reduces cost                       3) Avoid risks

In I/GCSE Chemistry, Reducing use of petrochemicals, e.g. crude oil, will be more sustainable.

Rather, you should ferment renewable plant material using bacteria --> produces MALANIC ACID --> produces sorona --> used for clothes

In I/GCSE Chemistry, Yield - efficiency of method

• Compares quality with predicted quality

High yield = good but doesn’t mean that process is “green”.

E.g. 10g of CaCO₃ is heated for 20mins. The product is 4.8g of CaO. What is the percentage yield?

= the efficiency --> how much product ends up as reactant

Formula: RAM of product / RAM of reactant x 100

In I/GCSE Chemistry,

E.g. CaCO₃ (s) --> CaO (s) + CO₂ (g)

RAM =100 RAM=56 RAM=44

Atom economy: 56 / 100 x 100 = 5.6%

You got it now!