Question
A doctor orders 120. mL of 2% (m/v) ibuprofen. If you have 10.% (m/v) ibuprofen on hand, how many milliliters do you need?
Express the volume to two significant figures and include the appropriate units.
Express the volume to two significant figures and include the appropriate units.
Answers
GPT 3.5
Let's use the formula:
C1V1 = C2V2
Where:
C1 = 10.% (m/v) = 0.10
V1 is what we want to find
C2 = 2% (m/v) = 0.02
V2 = 120 mL
Substituting the values into the formula:
0.10V1 = 0.02(120)
Simplifying the equation:
0.10V1 = 2.4
Dividing both sides of the equation by 0.10:
V1 = 24
Therefore, you need 24 mL of the 10.% (m/v) ibuprofen.
C1V1 = C2V2
Where:
C1 = 10.% (m/v) = 0.10
V1 is what we want to find
C2 = 2% (m/v) = 0.02
V2 = 120 mL
Substituting the values into the formula:
0.10V1 = 0.02(120)
Simplifying the equation:
0.10V1 = 2.4
Dividing both sides of the equation by 0.10:
V1 = 24
Therefore, you need 24 mL of the 10.% (m/v) ibuprofen.