Answer:
[tex]\boxed{\text{ 86.00\,\%}}[/tex]
Explanation:
[tex]\text{\% yield} = \dfrac{\text{actual yield}}{\text {theoretical yield}} \times\text{100 \%}[/tex]
Data:
Actual yield = 430.0 g
Theoretical yield = 500.0 g
Calculation:
[tex]\text{\% yield} = \dfrac{\text{430.0 g}}{\text {500.0 g}} \times\text{100 \%} = \boxed{\text{86.00 \%}}[/tex]