A college text-book of chemistry . call carbon dioxide, and which is commonly known as carbonicacid gas. It is the substance which was obtained by burningcharcoal in Fio. 50. Experiment 122.—Into the bottle containing the air fromwhich the carbon dioxide has been removed hold a burning stick 266 COLLEGE CHEMISTRY. or taper for a moment. Notice whether a crust is. now formedon the lime-water. Wood and the material from which the taperis made contain carbon. Explain the formation of the crust onthe lime-water after the stick of wood or taper has burned for ashort time in the vessel. Exp
A college text-book of chemistry . call carbon dioxide, and which is commonly known as carbonicacid gas. It is the substance which was obtained by burningcharcoal in Fio. 50. Experiment 122.—Into the bottle containing the air fromwhich the carbon dioxide has been removed hold a burning stick 266 COLLEGE CHEMISTRY. or taper for a moment. Notice whether a crust is. now formedon the lime-water. Wood and the material from which the taperis made contain carbon. Explain the formation of the crust onthe lime-water after the stick of wood or taper has burned for ashort time in the vessel. Experiment 123.—Arrange an apparatus as shown in Eig. bottle A contains air; B contains concentrated sulphuricacid ; 0 contains granulated calcium chloride ; D is carefully driedand contains a few pieces of granulated calcium chloride andair. Pour water through the funnel-tube into A, when the airwill be forced through B and C and into D. But in passingthrough B and C the moisture contained in it will be removed,and the air which enters,D will be dry. After A has once beenfilled with water, empty it and fill it again, letting the dried airpass into D. This ope
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