I suspect by gL you mean g/L. Borrowing from another Q/A here:
http://wiki.answers.com/Q/How_many_grams_of_salt_are_in_one_cup We'll assume 1 cup sea salt is 400 grams. 1 gallon = 3.7854L, so 1cup salt in 1 gal water = 400/3.7854 = 106 g/L You're asking for RSD in a way that doesn't make sense - maybe rephrase it or describe the information you're looking for.
Chlorine is a gas at room temperature; in nature chlorine exist in many chloride minerals or as hydrogen chloride in volcanoes gases.
Changes in CO2 concentration in seawater can affect pH levels by increasing the amount of carbonic acid in the water, which lowers the pH and makes it more acidic. This process is known as ocean acidification.
The most important factor affecting seawater density is its temperature. As temperature increases, seawater density decreases, causing it to expand and rise. Conversely, as temperature decreases, seawater density increases, causing it to contract and sink.
Chlorine is a chemical element that is not made by humans but is found naturally in the Earth's crust and in seawater. However, most of the chlorine used in industry is produced from brine or by electrolysis of salt water.
The ocean has a lot of salt in it, 3.5% by weight, but that is not just dissolved sodium chloride (Na+, Cl-). The dissolved sodium and chlorine atoms account for about 85% of the salt by weight. The ocean contains calcium, magnesium, sodium and potassium with bicarbonate, sulfate, chlorine and bromine. (If you remove the water, then what is left is, by weight, Cl− 55%, Na+ 30.6%, SO2−, 4 7.7%, Mg2+ 3.7%, Ca2+ 1.2%, K+ 1.1%, Other 0.7%)
The cup of seawater has more salt, but the concentration, that is, the amount that it is diluted, is exactly the same.
a table spoon of seawater
When seawater is decomposed, toxic chlorine gas can be produced. This can happen when an electric current is passed through seawater during the process of electrolysis. It is important to handle and dispose of chlorine gas safely due to its toxic properties.
Chlorine can be produced from seawater through a process called electrolysis. In this process, an electric current is passed through the seawater, causing the chloride ions to undergo oxidation at the anode, producing chlorine gas.
the seawater smells
sodium and chlorine
On average, seawater contains about 35 grams of dissolved salt per liter. This concentration can vary depending on location and environmental factors.
Seawater is a mixture of various salts and water. Only six elements and compounds comprise about 99% of sea salts: chlorine, sodium, sulfur, magnesium, calcium and potassium. The relative abundance of the major salts in seawater is constant regardless of the ocean. Only the amount of water in the mixture varies because of differences between ocean basins because of regional differences in freshwater loss (evaporation) and gain (runoff and precipitation). The chlorine ion makes up 55% of the salt in seawater.
TEMPERATURE
The natural source of chlorine is found in chloride-containing minerals such as halite (rock salt) and sylvite. It can also be found in seawater.
It should say, "Magnesium and CHLORINE make up most of the ions in seawater." Not chloride.
For example chlorine from submarine volcanoes, to form sodium chloride.