Atom Economy (chemistry Only) (GCSE Chemistry)

For the reaction Na2CO3 + 2HCl ? 2NaCl + CO2 + H2O, calculate the atom economy for the desired product 2NaCl. (Use Ar: Na = 23, C = 12, O = 16, Cl = 35.5.)

If the balanced equation gives total product mass 200 g and mass of desired product 150 g, what is the atom economy?

A balanced equation shows total product mass 250 g and desired product mass 200 g. If the company scales the process so total products formed per batch double, what happens to the atom economy?

Calculate the atom economy for the reaction H2 + Cl2 ? 2HCl.

Ethanol + ethanoic acid ? ethyl ethanoate + water. Calculate the atom economy for ethyl ethanoate (desired product). (Use Ar: C = 12, H = 1, O = 16.)

A reaction has atom economy 80%. If all other conditions are ideal, which of the following can still be true about the process?

If a reaction has an atom economy of 25%, what fraction (by mass) of the reactant atoms becomes waste?

A chemist reports an atom economy of 95% for producing a fine chemical. Which of the following is a realistic implication?

Why might a company accept a lower atom-economy route for an industrial product?

Which of the following strategies commonly increases atom economy of a synthesis?

Two industrial routes produce the same desired product. Route A has atom economy 90%, Route B has atom economy 45%. Assuming similar costs and environmental controls, which route is preferable on atom economy grounds and why?