Question

The balanced chemical equation for the reaction is

shown below:
2HgO + 2Hg + O2
Did you start with the correct equation?
Yes, I started with the correct equation and
got the correct percent yield.
No, I did not start with the correct equation.
Yes, I started with the correct equation but
got the incorrect percent yield because of a
math error.

Answer 1

2 HgO → 2 Hg + O₂

(2 x 216.59 g) → gives → (2 x 200.59 g)

433.18 g → gives → 401.18 g

8.74 g → gives → ? g

by cross multiplication:

Theoretical yield = (401.18 x 8.74) / 433.18 = 8.094 g

% yield = (actual yield / theoretical yield) * 100

= (6.42 / 8.09) * 100 = 79.3 %

Step-by-step explanation:

Answer 2

Yes, I started with the correct equation and got the correct percent yield.

Step-by-step explanation: