chalk powder has calcium carbonate in it. calcium carbonate is a non soluble substance
it is easier to filter it,
dr Hussein moussa
first by sedimentation,then decantation and then filtration
Use a strainer or some cloth. It will keep the salt in, and dump the powder out.
filtration
First remove iron filings with a magnet. That leaves sand, salt and chalk dust. Add water which dissolves the salt, and filter leaving the sand and chalk dust on the filter paper. Put that back in water and add acid to dissolve the chalk dust (CaCO3) leaving the sand as a solid. Filter to obtain the sand. The chalk dust will now be in the acid as CO2 and H2O and the Ca salt of the acid.
please HELP
Yes, it is possible, the speed is depending on the granulometry.
First you mix both chalk and salt in water. From the solution that you get, you can filter the chalk out because it is non soluble in water. As for the salt, all there is to do is to just evaporate the water out.
We use filtration when we want to separate a solid and a liquid. e.g. chalk and water The residue left behind at the filter paper will be chalk in this case, for it is a solid:)
Separation by filtration is a method.
Use a magnet to remove the iron filings. Filter the remainder to separate the insoluble chalk powder from the water. Wash and dry the iron filings as they will be contaminated. Dry the chalk powder to remove traces of water.
Due to the chemical composition of Chalk, you can separate it from water either by filtration of evaporation.
First remove iron filings with a magnet. That leaves sand, salt and chalk dust. Add water which dissolves the salt, and filter leaving the sand and chalk dust on the filter paper. Put that back in water and add acid to dissolve the chalk dust (CaCO3) leaving the sand as a solid. Filter to obtain the sand. The chalk dust will now be in the acid as CO2 and H2O and the Ca salt of the acid.
first, put the mixture in water . salt will dissolve and then allow chalk powder to settle down. Then try decantation.
The best process for separating powder from water depends on the powder. If the powder dissolves in the water, then boiling the water and condensing it (distillation), will separate the two components. If the powder does not dissolve in the water, then simple filtration will separate the two.
Pass the mixture through filter paper. The salt water will pass through leaving the chalk behind in the filter paper.
Use a magnet to remove the iron filings from the mixture, then mix the remaining components with water. The copper sulfate will dissolve but the CaCO3 (chalk powder) will not. Filter the mixture to remove the chalk, then boil the water to recover the copper sulfate.
Filtration would separate the water, leaving the chalk particles behind.
Filtration would separate the water, leaving the chalk particles behind.
Due to the chemical composition of Chalk, you can separate it from water either by filtration of evaporation.
Stir stones, chalk and water until the chalk is in suspension. Pour off the chalky water (repeat as required), leaving the heavier stones behind. Filter the chalky water to let clear water pass through, so leaving the chalk in the filter paper.