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How does bleaching powder help in purification of water?
bleaching powder has formula CaOCl2 and it is used for killing the germs present inside the water because it liberates Cl2.
How do you make a 20 ppm chlorine solution for a 250 gallon spa using liquid household bleach?
20 ppm means 20 gm of bleaching powder be added in water
How does bleaching powder eradicate microbes from water?
Bleach liberates chlorine and chlorine is a powerful oxidising agent. Oxidation of the structure of the microbe destroys/kills it.
What gas dissolved in water that acts as a bleaching agent present in bleaching solution?
chlorine gas
Is there a link between the mass of mustard powder and the time it takes for an oil and water emulsion to separate?
yes there is, the more mustard powder added the longer it takes for the emulsion to separate. it takes about 9 minutes for the oil and water to separate if there is 0.5 g added
Can bleaching powder make hard water soft?
yes
How does bleaching powder help in purification of water?
bleaching powder has formula CaOCl2 and it is used for killing the germs present inside the water because it liberates Cl2.
How do you make a 20 ppm chlorine solution for a 250 gallon spa using liquid household bleach?
20 ppm means 20 gm of bleaching powder be added in water
Is HClO also called available chlorine when water is disinfected using bleaching powder?
yep
What happen when ethanol is heated with bleaching powder and water?
chloroform(CHCl3) and calcium formate[(HOOC)2Ca] is formed
What happens if sulfur powder is added to tap water?
Sulfur powder will float on the surface of the water.
What happens when bleaching powder reacts with ammonia?
when bleaching powder reacts with ammonia, nitrogen gas is evolved along with calcium chloride and water. The balanced reaction is: 3CaCl(OCl)(s)+2NH3(aq) = 3CaCl2(aq)+N2(g)+3H2O(l)
How does bleaching powder eradicate microbes from water?
Bleach liberates chlorine and chlorine is a powerful oxidising agent. Oxidation of the structure of the microbe destroys/kills it.
What is calcium hypochlorite used for?
According to Wikipedia, the formula for calcium hypochlorite is Ca(ClO)2. It is used to treat drinking water and the water in swimming pools. It also makes up bleaching powder, along with some other compounds.
Why is water added to concrete while mixing it?
Concrete is made from cement and added gravel. Cement starts out as a powdered rock, which will remain a powder unless water is added to it. Water turns it unto a paste which will gradually harden into a solid material. The water undergoes a chemical reaction with the cement powder.
What happens when water is added to anhydrous copper II sulphate?
it changes colour from a white powder to a blue powder
What happens to iron powder and salt mixture when it is added to water?
The salt dissolves in the water and the iron does not.
