Question

write an experiment that can be conducted in the laboratortory to get crystals of copper sulphate

Answer 1

AIM:TO PREPARE CRYSTALS OF COPPER SULPHATE
APPARATUS:DISTILLED WATER,BEAKER,GLASS ROD,CONCENTRATED SULPHURIC ACID,IMPURE COPPER SULPHATE
PROCEDURE:Add distilled water and stir well using glass rod. Make the solution by adding 2 – 3 drops of concentrated sulphuric acid in it, and heat up 70° C then add more impure copper sulphate until no more of it dissolves.
OBSERVATION: Then blue colored copper sulphate crystals will be formed.
INFERENCE:HENCE COPPER SULPHATE CRYSTALS ARE FORMED.

Answer 2

Hello this is the experiment=

You can buy copper sulphate in any gar­den­ing store. It is sold in pack­ets of 100 grams. This cop­per sul­phate is light blue be­cause of its low pu­ri­ty. Crys­tals made from it will be brighter.
Cop­per sul­fate is also sold in spe­cial lab­o­ra­to­ries that sell reagents. From this cop­per sul­fate, dark blue crys­tals are grown, which look like pre­cious stones.

Con­tain­er for the so­lu­tion

Use a glass ves­sel, as oth­er ma­te­ri­als en­ter into a chem­i­cal re­ac­tion with the so­lu­tion. A jar with a wide neck, with a vol­ume of 0.5 liters, will be ide­al. It is cat­e­gor­i­cal­ly for­bid­den to use it for food af­ter the ex­per­i­ment.

Base for crys­tal­liza­tion

For the base, use a thin woolen thread of a blue or black col­or. The adult crys­tal is semi-trans­par­ent, and the base should not spoil the re­sult. An al­ter­na­tive is a copper wire of small di­am­e­ter, pol­ished with sand­pa­per be­fore­hand.

Wa­ter

When cop­per sul­phate from a hard­ware store is used for the ex­per­i­ment, boiled wa­ter should be used. If the cop­per sul­fate is of high pu­ri­ty, the so­lu­tion is made with dis­tilled wa­ter.

Pro­tec­tive equip­ment

The sul­fate is tox­ic, and you should not work with it with­out gloves. Young chil­dren should wear med­i­cal masks.

Pen­cil or stick to hold the base

Use it for hang­ing the thread with fu­ture crys­tal.

Trans­par­ent nail pol­ish

To pre­serve crys­tals.

Dis­pos­able plas­tic spoon

At­ten­tion! Only con­duct the ex­per­i­ment un­der adult su­per­vi­sion. At the end of the process, wash your hands un­der run­ning wa­ter. You should wash them thor­ough­ly. You must not taste the crys­tal or pow­der. If cop­per sul­phate gets into chil­dren’s eyes, help them by rins­ing their eyes with a large amount of wa­ter.