Aqueous NaCl (aq) refers to a solution of sodium chloride dissolved in water, while liquid NaCl refers to pure, undissolved sodium chloride in its liquid state. Aqueous NaCl has a higher concentration of sodium chloride compared to liquid NaCl.
The state of NaCl, whether it is in its liquid or aqueous state, can affect its properties such as density, boiling point, and solubility. Aqueous NaCl has a higher boiling point and is more soluble compared to liquid NaCl.
Yes, liquid NaCl can be converted to its aqueous state by dissolving it in water. This process is known as hydration, where the water molecules surround and separate the Na+ and Cl- ions, allowing them to move freely in the solution.
The concentration of NaCl in an aqueous solution is determined by the amount of NaCl dissolved in a given volume of water. This is usually expressed in units of molarity (moles of NaCl per liter of solution).
Aqueous NaCl has several applications in everyday life, including as a food preservative, in the production of chlorine and sodium hydroxide, and as a de-icing agent for roads and sidewalks. It is also used in medical settings as a saline solution for intravenous fluids.