That would depend upon the density, because mg is a unit of mass, while ml is a unit of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; one is a measure of weight and mL (milliliters) is a measure of volume.
one quarter 250/1,000 = 25/100 = 1/4
This cannot be sensibly answered. Milliliters (mL or ml) and liters (L) are measures of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.
To find 20 percent of 250 ml, you can multiply 250 by 0.20 (which is the decimal form of 20 percent). This calculation would result in 50 ml, which is 20 percent of 250 ml. Therefore, 20 percent of 250 ml is equal to 50 ml.
if water, 250 Mg = 250 megagrams (i'm not sure that's what you mean) 250 Mg (megagrams) = 250,000,000 ml 250 mg (milligram) = 0.25 ml 250 ug (micrograms) = 0.00025 ml
It looks like the 3.5 ml may be extraneous information. If 1 ml yields 250 mg, then you need 400/250 = 1.6 ml, to get 400 mg.
Two
This cannot be sensibly answered. A milliliter (mL or ml) is a measure of volume, grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
Does not convert; one is a measure of weight and the other is a measure of volume.
250 mg = 0.25 g
400 L/250 mL = 400,000 mL / 250 mL = 1600 bottles.400 L/250 mL = 400,000 mL / 250 mL = 1600 bottles.400 L/250 mL = 400,000 mL / 250 mL = 1600 bottles.400 L/250 mL = 400,000 mL / 250 mL = 1600 bottles.
Accordingly, 1 ml = 1/7.5 mg = 0.133 mg
16 ml