This question cannot be answered sensibly. A millilitre is a measure of volume, with dimensions [L3]. A gram is a measure of mass, with dimensions [M]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information. It takes only a little mental effort to compare one ml of air and a ml of lead to see that the two will have very different masses.
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass while milliliters (mL or ml) measure volume.
The conversion of grams to milliliters depends on the density of the gel. Density is typically expressed in grams per milliliter (g/mL). To convert grams to milliliters, divide the mass (in grams) by the density (in g/mL). For example, if the gel has a density of 1 g/mL, then 100 grams of gel would be equal to 100 mL.
The weight of a plastic cup can vary depending on size and thickness, but typically ranges from 5 to 20 grams.
Depends on the substance...if it is water, it will be 750 grams
280 ml of water is 280 grams
none
You divide the grams by the density.
About 150 ml
For water, 1ml = 1 gram
You need to specify how many mls per dose here. The mls per dose can vary, i.e. if it is 2x concentrated, it will be half the mls per dose
150
150 grams is 150,000 milligrams.