The theoretical yield and the percent yield are calculated as shown. 0.222gO2 and 87.8% Did you perform the calculations correctly? Yes, I got the correct theoretical yield and percent yield. No, I got the correct theoretical yield but calculated the percent yield incorrectly. No, I calculated the theoretical yield incorrectly, so my percent yield calculation was also incorrect. No, I used the correct equations, but I got the wrong answer because of a math error.