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Yes, salt is a solute in seawater. Water is the solvent, salt is one of the solutes, and the solution is seawater.
Yes, salt is a solute in seawater. Water is the solvent, salt is one of the solutes, and the solution is seawater.
Concentration range of seawater acidity
One gallon of seawater weighs about 8.53 pounds or 3.87kg
Assuming the question is asking about Sea Water, the Wikipedia entry on "seawater" says "Seawateris water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM). This means that every kilogram (roughly one litre by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts...". So, to convert this to pounds and gallons, there are 3.78 liters per gallon and 16 ounces per pound. If I did the arithmetic correctly, that would be 0.28 pounds (4.5 oz) per gallon.
Rock salt contains all the minerals found in the seawater from which it formed. These will be many, but NaCl will be the main one.
A lower freezing point than fresh water
one cup to one gallon water
Do you mean common table salt? Are we talking U.S gallons? If this is not your question, please clarify and resubmit. 1 U.S. gallon of water weighs 8.32487 pounds, or 133.198 ounces. Table salt (in crystal form, as in your salt shaker) has a specific gravity of 1.154, which gives about 154 ounces.
One gallon
It isn't 1+1 because the salt (some or all) will dissolve in the water. You cannot predict the volume. It needs to be measured experimentally, but the volume will certainly be less than 2 gallons.
There are 4 quarters of a gallon in a gallon.