 | Ralph Webster Richards - 1907 - Страниц: 118
...covellite, chalcopyrite, pyrite, etc. D. 302. M. & P. 308. SPESSARTITE. A manganese Garnet, qv SP. GR. Specific gravity. The ratio of the weight of a substance to the weight of an equal volume of water. S Ph. Hydrogen sodium ammonium fosfate, HNaNH.PO^H/); sometimes called microcosmic salt.... | |
 | Charles Henry Lake - 1917 - Страниц: 484
...procedure also gives the numerical value of the specific gravity of the substance. Specific gravity is the ratio of the weight of a substance to the weight of an equal volume of water. _, ., mass in grams Density = — : - • -- volume in cc Specific gravity = weight of body... | |
 | Theodore Lindquist - 1917 - Страниц: 332
...Chapter XXIII were directly proportional? inversely proportional? neither? 21. Specific gravity is the ratio of the weight of a substance to the weight of an equal volume of water. If the weight of water is 62.5 Ib. per cubic foot, what is the specific gravity of wood weighing... | |
 | Daniel Russell Hodgdon - 1920 - Страниц: 368
...determine whether they are fully charged. Meaning of Specific Gravity. — Specific gravity, of a solid, is the ratio of the weight of a substance to the weight of an equal volume of water; of a gas, the ratio to air. For example, zinc has a specific gravity of 7, which means that... | |
 | Herbert Anderson Toops - 1921 - Страниц: 138
...for measuring temperature of more than forty degrees below zero? Ans. Alcohol. 26. What do you call the ratio of the weight of a substance to the weight of the same volume of water? Ans. Specific-gravity. 27. What is the unit of electrical power called? Ans.... | |
 | Herbert Anderson Toops - 1921 - Страниц: 136
...for measuring temperature of more than forty degrees below zero? Ans. Alcohol. 26. What do you call the ratio of the weight of a substance to the weight of the same volume of water? Ans. Specific-gravity. 27. What is the unit of electrical power called? Ans.... | |
 | Sir William Cecil Dampier Dampier - 1924 - Страниц: 302
...volume, in the CGs system of units, the number of grams per cubic centimetre. The specific gravity is the ratio of the weight of a substance to the weight of an equal volume of water. The specific gravity of a solid is found by weighing the solid first in air, and then in... | |
 | W. D. Hills - 1925 - Страниц: 278
...sp.g. or relative density of a substance is the number of times it is heavier than water. That is, the ratio of the weight of a substance to the weight of an equal volume of water. All forms of matter have weight and, therefore, density. Because fluids are unable to resist... | |
 | Frederick Arthur Burt - 1927 - Страниц: 104
...number and varying sizes and meet with sharp irregular edges. Specific Gravity Specific gravity is the ratio of the weight of a substance to the weight of an equal volume of distilled water at 4° Centigrade. In practical mineralogical work water of room temperature is... | |
 | United States. Army. Air Corps - 1941 - Страниц: 358
...solution. 80. Mixing solutions by hydrometer. — a. Hydrometers measure specific gravity, which is the ratio of the weight of a substance to the weight of an equal volume of water at the same temperature. When a chemical is dissolved in water, the specific gravity is increased.... | |
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The specific gravity is the ratio of the weight of a substance to the weight of an equal volume of water. 
