Extracting Salt Flashcards
How do u extract salt from natural resources?
There are many ways, for example;
1. Extracting salt from seawater. You let the sun evaporate the sea
water then the salt is left. (Edible ONLY AFTER PURIFYING)
2. Extracting salt from rocks. Grind up the rock salt, then put in beaker of water. Mix till salt dissolves, then pour into conical flask with filter paper.Evaporate the water.
3. Extracting salt from brine pits. The salt is dissolved by the water and now the hose pumps it out of the hole. The water evaporates and salt is left. BUT THEN SPACE UNDERGROUND IS LEFT AND IS PRONE TO COLLAPSING.
Dissolving means?
When a liquid substance is mixed with a solute substance and breaks apart into molecules. Molecules are to hard see.
What’s a solvent?
Is a substance that is able to dissolve other substances.
Example: water, liquid, ethanol, tea, hot water (hotter liquid substances are able to dissolve solid substances faster than cold liquids. The reason is because in high temperature the substance receives more energy thus moving faster therefore breaking the e.c.t. Sugar molecule)
Solute meaning?
Solute is a substance dissolved by a solvent.
Example; sugar, salt.
Solution meaning?
Together with solvent and solute it makes a solution.
SOLVENT + SOLUTE = SOLUTION
When the sugar (solute) dissolves in tea (solvent) , how do u know the sugar is still in the tea?
The tea is sweet. 😉
What’s a concentration?
The mass of molecules dissolved in a particular volume of liquid is called concentration.
Why is stirring the solute in the solvent make the solute dissolve faster?
Because when you stir the solute in the solvent, the solvent moves more as you stir, it then makes the solute move faster thus breaking into small molecules.
