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If a drug has a concentration of 400 mg per 10 ml, how many mL are needed to give 1.5 grams of the drug?

1 Answer

5 votes

We can use the simple ratio of y = mx + b

400mg = 10L(m) + 0

40mg = 1mL

1mL = 40mg

40(37.5) = 37.5mL

1500mg = 37.5mL


37.5 milliliters of space is required to hold 1.5 grams of material.


This is one way or you could have been smart and used density which is volume = mass/density


10 = 400/density

10(density) = 400


density = 400/10

density equals 40 mg per mL


1500 = 40(Volume)

1500/40 = Volume

37.5 = Volume



37.5 milliliters of space is required to hold 1.5 grams of material.

User Brutallord
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