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.
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.
1 answer