1 milli liter is 1 cubic centimeter.Melissa Messina
And table salt is pretty close to pure crystals of sodium chloride
So if you mean 2.5ml of solid salt, that’s 1cm x 1cm x 2.5cmIf you mean salt water, there’s 32g of salt per liter of sea water, so there would be .08g of salt in 2.5ml