This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 edition. Excerpt: ...70 cc. water in an evaporator. Heat on the sand-bath until the boiling-point is reached. Then add 2 grams of pulverized starch. Observe the appearance of the starch immediately after adding. Heat twenty-five minutes, stirring occasionally, and replacing the water should too much evaporate. Add CaCO, to ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 edition. Excerpt: ...70 cc. water in an evaporator. Heat on the sand-bath until the boiling-point is reached. Then add 2 grams of pulverized starch. Observe the appearance of the starch immediately after adding. Heat twenty-five minutes, stirring occasionally, and replacing the water should too much evaporate. Add CaCO, to neutralize the H, SO4: when neutral to test paper, filter, washing the contents of the filter with 25 cc. of water. Take a few drops of the filtrate and test with iodin for starch. Then evaporate the rest of the filtrate to about 20 cc. and observe its appearance. Tests for glucose. Place about 3 cc. of glucose solution in a testtube, add 3 cc. alkaline solution of copper sulfate, called Fehling's solution (see Experiment 34), and heat. Then take about o. 1 gram of glucose from the shelf bottle, dissolve it in 5 cc. water, add 3 cc. Fehling's solution. Heat, and compare with the first test. Questions. (1) Why was sulfuric acid used in this experiment? (2) What chemical change did the starch undergo? Write the reaction. (3) Why was CaCO3 used? Write the reaction. (4) Was any reaction obtained with iodin for starch? (5) What was the result when the glucose solution was added to the hot alkaline solution of copper sulfate? (6) How did this precipitate compare with that obtained when glucose from the shelf bottle was used? 251. Levulose, commonly called fruit-sugar, is formed along with dextrose whenever sucrose undergoes inversion. It has the same formula as dextrose, C6H12O6, but different chemical and physical properties, due to a different structural composition. Levulose is very sweet, and is found in many ripe fruits and vegetables. Its properties are somewhat similar to those of dextrose, but it is more susceptible to the action of heat, acids, ...
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Add this copy of The Chemistry of Plant and Animal Life to cart. $21.67, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2013 by Hardpress Publishing.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Chemistry of Plant and Animal Life to cart. $21.67, new condition, Sold by Books2anywhere rated 5.0 out of 5 stars, ships from Fairford, GLOUCESTERSHIRE, UNITED KINGDOM, published 2013 by Hardpress Publishing.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Chemistry of Plant and Animal Life to cart. $24.20, new condition, Sold by Paperbackshop International rated 4.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2013 by Hardpress Publishing.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Chemistry of Plant and Animal Life to cart. $24.20, new condition, Sold by Paperbackshop International rated 4.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2013 by Hardpress Publishing.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of The Chemistry of Plant and Animal Life to cart. $27.52, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2013 by Hardpress Publishing.
Add this copy of The Chemistry of Plant and Animal Life to cart. $27.52, new condition, Sold by Booksplease rated 3.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2013 by Hardpress Publishing.
Add this copy of Chemistry of Plant and Animal Life to cart. $21.95, good condition, Sold by Outside of a Dog Books rated 5.0 out of 5 stars, ships from BUCKSPORT, ME, UNITED STATES, published 1907 by Macmillan Company.
Add this copy of The Chemistry of Plant and Animal Life to cart. $34.08, new condition, Sold by Paperbackshop rated 4.0 out of 5 stars, ships from Bensenville, IL, UNITED STATES, published 2013 by Hardpress Publishing.
Add this copy of The Chemistry of Plant and Animal Life to cart. $34.08, new condition, Sold by Paperbackshop rated 4.0 out of 5 stars, ships from Bensenville, IL, UNITED STATES, published 2013 by Hardpress Publishing.
Add this copy of The Chemistry of Plant and Animal Life to cart. $64.56, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2019 by Wentworth Press.
