take some other food of known weight eg sugar bag and then compare the weight with thatvia balncing or simply holding and feeling .. theres no way to be accurate
Depends how big the grain of salt is.
Buy some scales and find out
4 tbsp of salt is approximately 60 grams
One cubic centimeter (cc) of salt typically weighs about 2.16 grams.
It weighs approximately 6 grams.
5 grams 0.5 Newtons 0.5 centigrams 0.005 kilograms
100ml of water weighs approximately 100 grams. Adding 15 grams of salt would bring the total weight to 115 grams.
You have said yourself that is about 200 grams.
There will be a bit of variation in a measurement because salt crystals are not a uniform size. Now the good news, thanks to the Salt Institute, which is a non-profit trade association for the salt industry. They have the straight scoop (no pun intended) on salt. Salt weighs about 6 grams per teaspoon or about 18 grams per tablespoon. That makes your 3 tablespoons of salt weigh in at about 54 grams.
Weigh it in grams, then, as the density of table salt is about 2.17 g/cc, divide the weight by 2.17 and the answer will be the volume of salt in cc.
A teaspoon of salt typically has a mass of about 5 to 6 grams. This can vary slightly depending on the type of salt and its granule size, but for common table salt, 5 grams is a practical estimate. Therefore, when measuring small quantities in cooking or nutrition, a teaspoon of salt is often considered to weigh around 5 grams.
You can not equate volume and weight without knowing the density of the substance being measured.A tablespoon of feathers would not weigh as much as a tablespoon of salt.