How many milliliter are there in 100g of powder?

Answer 1

This cannot be sensibly answered. Milliliters (mL or ml) is a measure of volume, grams is a measure of weight or mass.

Answer 2

The number of milliliters in 100g of powder will depend on the density of the powder. If you know the density of the powder, you can use the formula: volume (in mL) = mass (in g) / density (in g/mL). If you don't know the density, you won't be able to accurately convert grams to milliliters.