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Updated: June 2, 2025
A further inspection of the dissected compounds above shows that six molecules of FeO.SO were required to react with the three atoms of oxygen from the bichromate. From the two equations Since the ferrous sulphate crystalline form has the formula FeSO .7H O, a normal reducing solution of this crystalline salt should contain 277.9 grams per liter. !Approximate Strength 0.1 N!
A liter of dried cacao beans weighs 630 grains; of picked and roasted, 610 grains. In 1727 a hurricane destroyed at a single blast the important cacao plantation of Martinique, which had been created by long years of extraordinary care. The same thing happened at Trinidad. Mitscherlich.
Greusel led his men to a Weinstaube a short distance out of the village, and, to their delight, succeeded in establishing a credit for them to the extent of one liter of wine each, with a substantial meal of meat, eggs, and what-not.
Although, therefore, the iodine contains no oxygen, the two atoms of iodine have, in effect, brought about the addition of one oxygen atoms to the sulphur atoms. By a similar course of reasoning the conclusion is reached that the normal solution of sodium thiosulphate should contain, per liter, its molecular weight in grams.
"Praecipua enim difficultas hic est, quam attingit Div. Nam Divus Augustinus libro quinto Genes, ad liter. cap. 4 et 5 et libro 8, cap. 3, posteriorem partem tradit, dicens, terram in hoc die accepisse virtutem germinandi omnia vegetabilia quasi concepto omnium illorum semine, non tamen statim vegetabilia omnia produxisse. Quod primo suadet verbis illis capitis secundi.
And though this praise is doubtless exaggerated, he is a son of whom his country may be justly proud. Hugo Albert Rennert. Milan, 1895-97, the best work on the subject. The most complete bibliography of Machiavelli up to 1858 is to be found in Mohl, Gesch. u. Liter. der Staatswissenshaften, Erlangen, 1855, III., 521-91.
Dissolve the bichromate in distilled water, transfer the solution to a liter bottle, and dilute to approximately 1000 cc. Shake thoroughly until the solution is uniform. Transfer the solution to a liter bottle, add 5 cc. concentrated sulphuric acid, make up to about 1000 cc. and shake vigorously to insure uniformity.
Arcot paused, frowning, then resumed half apologetically, "Excuse the lecture but I don't know how else to get the thought across. You are familiar with the conditions in a liter of helium gas in a container a tremendous number of molecules, each dashing along at several miles a second, and an equal number dashing in the opposite direction at an equal speed.
There is, unfortunately, no uniform standard of volume which has been adopted for general use in all laboratories. It has been variously proposed to consider the volume of 1000 grams of water at 4°, 15.5°, 16°, 17.5°, and even 20°C., as a liter for practical purposes, and to consider the cubic centimeter to be one one-thousandth of that volume.
To prepare the solution for this determination, which should be approximately 0.05 N, dissolve about 5 grams of potassium thiocyanate, or 4 grams of ammonium thiocyanate, in a small amount of water; dilute this solution to 1000 cc. in a liter bottle and mix as usual. About 5 cc. of this solution should be used as an indicator.
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