A Text-Book of Elementary Chemistry, Theoretical and Inorganic (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1874 edition. Excerpt: ... at o? 21. What weight of potassium chlorate is needed to evolve the amount of oxygen contained in one c. c. of water? 22. What weight of water can be heated from o to i by the combustion of one cubic meter of mixed oxygen and hydrogen? EXERCISES. 165 23. What volume has a block of ice which weighs a kilogram? 24. An iceberg floating in sea-water of specific gravity 1-027, cx_ poses 30,000 cubic meters above the surface; what is its entire volume? 25. Define water of crystallization. Efflorescence. Deliquescence. 26. How is hydrogen peroxide prepared? What are the tests for it? 2. 27. How does sulphur occur in nature? How is it purified? 28. Why is sulphur dimorphous? Prove its allotropism. 29. What do 632 c. c of sulphur-vapor weigh at 500o i. At 1000o? 30. One liter of hydrogen sulphide contains what weight of sulphur? 31. 500 c. c H2S requires what volume of oxygen for its combustion? 32. How many grams of FeS and of H2S04 are needed to yield one cubic meter of H2S? To saturate one liter of water at o? 33. Name the oxides and the acids of sulphur. 34. Sulphur burned in a liter of oxygen, gives what volume of so2? 35. Ten grams of S gives what volume of S02? What weight? 36. 53 grams copper yield how many c. c. of sulphurous oxide, measured at ioo and under 750 m. m. pressure? 37. To produce 100 grams calcium sulphite requires how much so2? 38. One kilogram of SO3 requires the oxidation of what volume of S02? 39. What weight of H2S207 will yield 100 c. c of solid S03? 40. One gram of sulphur yields what weight of sulphuric acid? 41. Oil of vitriol of sp. gr. 1773 contains 70 per cent of sulphuric acid; how many kilograms of such acid may be made from 150 kilograms of pyrite, containing 42 per cent of sulphur? 42. What are the...