The accompanying dia grams (figs.
Now taking the isomers H 3 C CC1 3 (M„ = 108) and C1H 2 C CHC1 2 (M„ = we see the negative chlorine atoms heaped up in the left hand formula, but distributed in the second; the former therefore may be presumed to occupy a larger space, the molecular volume, that is, the volume in cubic centimetres occupied by the molecular weight in grams, actually being 108 in the former, and 103 in the latter case (compare Chemistry: Physical).
Centimetre, exposed perpendicularly to the sun's rays, would receive sufficient energy per minute to raise 2.54 grams of water I ° C. Langley's general determination of the constant was greater than this-3 o to 3.5 calories; more recently C. G.
In an experiment on 3500 grams of paraffin produced from shale (melting point 44'5° C.) they obtained nearly 4 litres of liquid hydrocarbons, which they subjected to fractional distillation, and on examining the fraction distilling below loo° C., they found it to consist mainly of olefines.
It is held that an excess of the latter is undesirable in wine, but unless the quantity appreciably exceeds two grams per litre, na reasonable objection can be raised.
* * Results, excepting alcohol, are in grams per litre.
No charge is made for the transmission of newspapers within the republic. The letter rate is 5 cents silver for 15 grams, or 10 cents to foreign countries in the postal union.
The quantity of morphine that any one may legally possess, and then only for medicinal purposes, is in India 10 grams, and in Burma five.
With the fall of water there is an increase in the specific gravity, which in 1850 was 1.17, and in September 1901 was I 179; in 1850 the proportion of solids by weight was 22.282%, in September 1901 it was 25.221; at the earlier of these dates the solids in a litre of water weighed 260.69 grams, at the latter date 302'122 grams. The exact cause of this cyclic variation is unknown: the low level of 1906 is usually regarded as the result of extensive irrigation and ploughing in the surrounding country, which have robbed the lake, in part, of its normal supply of water.
Mineral springs occur containing a very high percentage (3.245 grams per litre) of common salt; and in 1893 a company was formed for working them.
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Berzelius took 8 grams of copper, converted it into the coloured chloride, and sealed up the whole of this in solution, together with a weighed strip of copper.
The simple "syrup" of the British Pharmacopoeia is prepared by adding 1000 grams (or 5 lb) of refined sugar to 500 cubic centimetres (or two pints) of boiling distilled water, heating until it is dissolved and subsequently adding boiling distilled water until the weight of the whole is 1500 grams (or 71 lb).
'Results (excepting alcohol) are expressed in grams per litre, i.e.