Question

In a chemical reaction, substance R reacts with compound XY to produce 47.0 g of compound RX. If the theoretical yield of RX is 56.0 g, what is its percent yield?

A.9.00%
B.16.1%
C.83.9%
D.119%

Answer 1

The answer is C 83.9%.

Answer 2

Answer: The correct option is C.

Explanation: For a given chemical reaction:

`R+XY\rightarrow RX+Y`

The mass of product, RX formed in the reaction = 47.0 g

Theoretical yield of the product, RX = 56.0 g

To calculate percent yield, we use the formula:

`\%\text{ yield}=\frac{\text{Actual yield}}{\text{Theoretical yield}}* 100`

Putting the values in above equation, we get:

`\%\text{ yield}=(47.0g)/(56.0g)* 100`

Percent yield = 83.9%