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Synopsis
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 Excerpt: ...horizontal tangent to the meniscus is opposite the next lower numbered division. Again weigh beaker and contents. Continue thus until the mass of mercury corresponding to each numbered space has been determined. In order to avoid the error of parallax when taking a reading of the position of the mercury meniscus, the line of sight must be in the plane tangent to the mensicus and its image reflected by the mirror. Knowing that at 20 C one ex. of mercury weighs i3.346 gms., the volume between any two division lines can be at once computed. From this series of values construct a table of corrections for the burette. XVII. DETERMINATION OF THE VOLUME OF A SOLID BY IMMERSION. Object And Theory Of Experiment.--Since a solid body immersed in a liquid is acted upon by an upthrust equal to the weight of liquid displaced by the body, and since the volume of liquid displaced equals the volume of the body, if the mass of unit volume of the liquid is known and the magnitude of the upthrust be measured, the volume of the body can be at once calculated. The volume of the displaced liquid, i. e., the volume of the solid body, is obviously equal to the apparent loss of weight of the body when immersed in the liquid divided by the weight of unit volume of the liquid. The object of this experiment is to determine the volume of a solid body of irregular shape by the method of immersion. Manipulation And Computation.--The liquid in which the body is immersed must be one which will neither dissolve the body nor act upon it chemically, nor cause it to change its volume. Whenever possible water is used which has been freed of dissolved gases by boiling. If the liquid contains dissolved gases, bubbles will collect on the immersed body causing an increased upward thrust and thereby ...
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- PublisherRareBooksClub.com
- Publication date2012
- ISBN 10 1130974227
- ISBN 13 9781130974225
- BindingPaperback
- LanguageEnglish
- Number of pages40
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