Our Hydrochloric Acid Gas experiment starts when you place a little sodium chloride in a test-tube and add a drop or two of strong sulphuric
In the preparation of bromine, fix up your apparatus as for the preparation of nitric acid, surrounding the receiver with cold water. Mix about 4
Mix about 1 or 2 grams of potassium iodide with about twice its weight of manganese dioxide, and transfer the mixture to a flask fixed
Hydrofluoric acid can be prepared by the action of sulphuric acid on fluorspar (calcium fluoride), but glass apparatus cannot be used in the preparation on
Fix up your apparatus as in the preparation of carbon dioxide, only set your flask on a retort-stand, so that it can be heated. Take
The Sulphur Trioxide Gas Laboratory experiments starts when you pour about 10 c.c. of strong Nordhausen sulphuric acid (H2S2O7) into a small retort to which
Before starting to work at Practical Chemistry it is necessary that the student should have some knowledge of how to cut, bend, draw down, and
From very early times the ancients were attracted by the beautiful colour, the brilliant lustre, and the indestructibility of gold, and spared no pains in
Gold crystallises in the cubic system, occurring frequently in nature in the form of cubes, octahedra and rhombic dodecahedra. Cleavage is never exhibited. Single detached
In tank-lixiviation of silver by chlorination, the extraction of the silver from chloridized ore by solutions of hyposulphite salts is performed by filtration. The ore-particles