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On account of failure to boil out all the excess SO , 38.60 cubic centimeters of 0.1 N KMnO were required to titrate the solution. What was the error, percentage error, and what weight of sulphur dioxide was in the solution? From the following data, calculate the ratio of the nitric acid as an oxidizing agent to the tetroxalate solution as a reducing agent: 1 cc. HNO = 1.246 cc.
The goldsmith glanced curiously at Stradella, and then took his small block of basalt and a stoneware bottle of nitric acid from a leathern bag he carried, slung on his arm. The spotted cat seemed interested in these objects, and after having gazed at them placidly for half a minute, rose with deliberation, walked along the edge of the table, and sniffed at the stone and the goldsmith's fingers.
Lavoisier then mixed measured volumes of oxygen and "nitrous air," standing over water; a red gas was formed, and dissolved in the water, and Lavoisier proved that the water now contained nitric acid.
On the whole, were I a hat manufacturer, I should prefer to buy my fur untreated by that nitric acid and mercury process previously referred to, and promote its felting properties myself by the less severe and more rational course of proceeding, such, for example, as treatment with warm dilute acid.
The fresh juice mixed with cold water was scarcely coagulated at all; but on the contact of nitric acid the separation of the viscous membranes took place. We sent two bottles of this milk to M. Fourcroy at Paris: in one it was in its natural state, and in the other, mixed with a certain quantity of carbonate of soda. The French consul residing in the island of St.
A considerable amount of sulphuric acid is now made by the so-called "contact process," in which sulphur dioxide and oxygen unite to form sulphuric acid in presence of a heated "contact" substance, usually some form of finely-divided platinum. Nitric Acid.
These plants were built almost entirely for war purposes, for the production of ammonia to be oxidised to nitric acid. Ammonium nitrate also resulted. These substances are the mainstay of explosives warfare, and, as a matter of fact, their production in these very plants was the chief factor which enabled Germany to continue the war beyond 1915.
Some years ago, in 1832, a French chemist, Braconnot, discovered this substance, which he called xyloidine. In 1838, another Frenchman, Pelouze, studied its different properties; and lastly, in 1846, Schonbein, professor of chemistry at Basle, proposed it as gunpowder. This powder is nitric cotton." "Or pyroxyle," answered Elphinstone. "Or fulminating cotton," replied Morgan.
Allow the solution to stand for some hours, and then filter off the magnesium ammonium phosphate, which should be distinctly crystalline in character. Wash the precipitate with dilute ammonia water, as prescribed above, until, finally, 3 cc. of the washings, after acidifying with nitric acid, show no evidence of chlorides.
But the sight of your lover's agonies, his indignation, his anger, madden you and you get the lust of cruelty. You become insane. You make new wounds. You tear open old ones. You cut, you thrust, you bruise, you put acid in the sores the sharpest nitric acid; and then you heal with a kiss of remorse, and that is acid too carbolic acid, and it smells of death.
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