You cannot associate weight with volume without knowing the density. If you find this out, then Density is mass/volume
This is not a proper conversion. Milliliters (mL or ml) and liters (L) are measures of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.
Weight and length are not directly associable. However you may have meant milligrams. If so, there are 1000 milligrams in a gram, so 12.5 grams would be 12,500 milligrams.
12.5mg
This cannot be sensibly answered. A milliliter (mL or ml) is a measure of volume, grams (g) and milligrams (mg) are measures of weight or mass.
This cannot be answered because volume and weight are different. 30 ml of mercury will way much more than 30 ml of flour.
Milliliters can't be converted to milligrams. Milliliters measure volume, while milligrams measure mass.
This cannot be sensibly answered. Milliliters (mL or ml) is a measure of volume, mg is a measure of weight or mass.
Only if the density or concentration is 1 mg/ml
0.125 L
125 mL = about 4.23 fluid ounces.
1/200 of a mL or 0.005mL
1,25 L = 1 250 mL
Milliliters (mL) are volume units. Milligrams (mg) are mass or weight units. Neither can be directly converted into the other.
This is not a valid conversion. Milliliters (mL or ml) and liters (L) are measures of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.
125 ml = 1 liter 1 liter + 0.125 liter = 1.125 liters
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
This cannot be sensibly answered. One is a measure of volume and the other is a measure 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.
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.