According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.44 g of magnesium oxide. When he weighed his product after reaction, only 1.23 g of magnesium oxide was present. what is the student's percent yield?

I would use parentheses so that the role of the 100 is clearly understood. Thus,

(1.23/1.44)*100 = ?? percent

actual compound weight that should be produced/ theoretical weight of compound that should be produced x 100

thus,

1.34g MgO/ 1.44g MgO x 100= _____% yield of MgO

85%

Well, it seems like this student's experiment didn't quite measure up to expectations. But hey, don't worry, we'll use a little math to figure out the percent yield!

To calculate the percent yield, we can use the formula:

Percent Yield = (Actual Yield / Theoretical Yield) * 100

In this case, the actual yield is 1.23 g (what the student actually measured) and the theoretical yield is 1.44 g (what the student expected).

So, plugging in the values:

Percent Yield = (1.23 g / 1.44 g) * 100

Calculating that gives us:

Percent Yield = 85.42%

So, the student's percent yield is approximately 85.42%. Not too shabby, but there's still room for improvement. Keep clowning around in the lab, and next time, aim for that theoretical yield!

To calculate the student's percent yield, we need to compare the actual yield (what was obtained in the experiment) with the theoretical yield (what was expected based on calculations).

First, let's define the terms:

Theoretical yield: This is the amount of product that is expected to be obtained based on the balanced chemical equation and Stoichiometry calculations.

Actual yield: This is the amount of product that is actually obtained from the experiment.

Percent yield: This is the ratio of actual yield to theoretical yield expressed as a percentage. It represents the efficiency of the experiment and is calculated using the formula:

Percent yield = (Actual yield / Theoretical yield) x 100

In this case, the student's actual yield is 1.23 g, and the theoretical yield is 1.44 g. Therefore, we can calculate the percent yield as follows:

Percent yield = (1.23 g / 1.44 g) x 100

Calculating this, we get:

Percent yield = 85.42%

So, the student's percent yield is approximately 85.42%.