Answer to Question #323190 in General Chemistry for Flor

Question

The decomposition of magnesium carbonate forms 15 grams of magnesium oxide (MgO) in an experiment based on this equation : MgCO3 MgO + CO2 . Solve for percentage yield

Answer 1

Ans=78.947 %

Explanation:

Actual yield of magnesium oxide = 15.00 g and Theoretical yield of magnesium oxide = 19.00 g

Actual yield: It is the actual amount produced in the experiment.

Actual yield is obtained by doing an experiment in the lab.

Theoretical yield: It is the maximum amount of product that can be produced from the chemical reaction.

Theoretical yield is obtained from stoichiometric calculation.

The formula for finding percent yield is

% yield = Actual yield / Theoretical yield * 100

% yield = 15.00g / 19.00g * 100

= 0.78947 * 100

= 78.947 %