If you boil water long enough, all the water will evaporate. However, since you posted your question in the Homebrewing category, let's answer the question with that in mind. If you're making a 5-gallon batch, you can expect to lose at least a gallon during the 90-minute (or longer) boil. When I'm making five gallons, I don't actually boil the whole five gallons. I usually boil three to four gallons and then add enough sterilzed water after the boil to equal five gallons. This helps in the rapid cooling process, which is essential in causing the "cold break," an important step in beer making.
The boiling point of salt is much much higher than the boiling point of water. So the salt stays behind while the temperature of the water remains at the boiling point of water.
the answer is a mega gallon of water
1 gallon of fresh water is about 8.36 pounds
A US gallon of water is 8.35 pounds. An Imperial gallon of water is 10 pounds.
the thing that weighs a gallon is a gallon of WATER or a gallon of milk.
At 17oC one gallon of water weighs 4.536kg.
there is about a gallon of water in a pineapple
1 oz / gallon
1 gallon
8 glasses of water a day is a gallon 64 ounces is a gallon
About 8.35 pounds for one US gallon of water.
One gallon of water weighs about 8.35 pounds (about 3.8 kilograms).