Answer:
The percentage (V/V) of liquid menthol in the ointment is 1.59%.
Step-by-step explanation:
Given : A prescription for an ointment has 3.5 mL of liquid menthol in a total of 220 mL.
To find : Calculate the percentage (V/V) of liquid menthol in the ointment ?
Solution :
Volume of liquid menthol is [tex]V_m= 3.5\ mL[/tex]
Total volume of ointment is [tex]V_t= 220\ mL[/tex]
The V/V percentage is given by,
[tex]\frac{V}{V}\%=\frac{V_m}{V_t}\times 100[/tex]
[tex]\frac{V}{V}\%=\frac{3.5}{220}\times 100[/tex]
[tex]\frac{V}{V}\%=0.0159\times 100[/tex]
[tex]\frac{V}{V}\%=1.59\%[/tex]
Therefore, the percentage (V/V) of liquid menthol in the ointment is 1.59%.
