. The chemistry of plant and animal life. Agricultural chemistry. 42 AGRICULTURAL CHEMISTRY below the surface of the water, as shown in Fig. 20. After the candle is extinguished, remove it with the hand, reaching through the water into the cylinder without admitting any air. While the cylinder is still under water, cover it with a glass plate and remove from the trough. Then make the following tests: (1) Insert a burning splinter into the cylinder of N. Observe the result. (2) Place a little sulfur in the deflagration spoon, ignite, and insert in the cylinder of N. Observe the result. (3) With
. The chemistry of plant and animal life. Agricultural chemistry. 42 AGRICULTURAL CHEMISTRY below the surface of the water, as shown in Fig. 20. After the candle is extinguished, remove it with the hand, reaching through the water into the cylinder without admitting any air. While the cylinder is still under water, cover it with a glass plate and remove from the trough. Then make the following tests: (1) Insert a burning splinter into the cylinder of N. Observe the result. (2) Place a little sulfur in the deflagration spoon, ignite, and insert in the cylinder of N. Observe the result. (3) With a. Fig. 20.â Preparation of nitrogen. ruler, measure the height of the cylinder and the amount of water left in the cylinder. Questions.â (1) What is the color of N ? (2) Odor? (3) Com- pared with air is it a heavy or a light gas ? (4) Is it combustible ? (5) Does N support combustion ? (6) Is N an active element ? (7) What portion of the cylinder is filled with water in the prepa- ration of N ? (8) What portion of the cylinder is filled with N ? (9) What portion of the cylinder did the O occupy? (10) What becomes of the products of combustion of the candle? (11) What do these experiments prove in regard to the element N ? (12) Com- plete the following table: Color. Taste. Combus- Supporter of Where found. Name of Svmbol Combin- element. y * ing wt. »-«"»â tible. combustion. Oxygen Nitrogen Hydrogen When the candle is burned, the oxygen of the air in the cylinder unites with the carbon and hydrogen from the candle and forms. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Snyder, Harry, 1867-1927. New York, The Macmillan company
Size: 2296px × 1088px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagricul, bookyear1913
