Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
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1 liter of water weighs 1 kg so 1 ml of water weighs 1 mg so 5 ml of water weighs 5 mg
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.
Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.
No set answer to that.Gram is an unit of weight while ml is an unit of volume - the result will depend on the density of the substance. One ml of lead will be a lot heavier than than one ml of sugar.Only if you have pure water in mind: 1 milliliter of pure water weighs 1 gram.1 g = 1000 mg
On a 1 ml syringe, 2.5 mg would depend on the concentration of the solution being measured. If you know the concentration (for example, if it’s 1 mg/ml), 2.5 mg would be indicated at the 2.5 mark on the syringe, which is halfway between the 2 ml and 3 ml marks. Always ensure you confirm the concentration of the medication to ensure accurate dosing.