On heating blue copper sulphate crystals in a fest fube the colour changes to white. The salt lopes Z.molecules of water of crystallization during the process. When water is added to this the white copper sulphate again turns blue. When the gin furnings are added to the above aqueous copper sulphate solution. The solution Name colourless completely after about 2 hours. The solution can be tested only for inson Crystollization i the method which can be used to obtain pure crystals of copper sulphate
Following changes were done in the above paragraphfor the underlined word, by a studnt
(3 colour of copper sulphate remoins blusinstead of white (4) 5 molecules of water of crystallizationinstead of 7
(i) zic granules instead of zichurning
(copper ions instead of sine ins
() sublimation instead of crystallization
Which of the above were correctly done
Answers
Answer:
The colour of hydrated copper sulphate CuSO
4
.5H
2
O is blue that turns into while, when heated at high temperature in a test tube, due to loss of water molecules from copper sulphate.
The liquid droplets appearing on the cupper side of test tube are the water molecules that evaparak on heating and condense on touching the cooler surface of upper part of the test tube.
Answer:
Explanation:
HEY MATE HERE IS YOUR ANSWER...
Na
2
CO
3
.10H
2
O is dry. The 10H
2
O represents the water of crystallization.
Gypsum with formula CaSO
4
.2H
2
O is used for many purposes:
⟶ Used as a soil additive (sometimes called Land Plaster) to improve soils' workability and receptivity to moisture.
⟶ Used as an additive in turbid water, particularly ponds, to settle dirt and clay particles without injuring aquatic life.
⟶ As a food additive as a dietary source of Ca.
⟶ As a color additive for drugs and cosmetics.
⟶ As a primary ingredient in toothpaste.