Nitric acid potassium hydroxide reaction with

Aquo-pentammino-iridium Nitrate, [Ir(NH3)sH20](N03)3, is formed when the corresponding base, [Ir(NH3)5H20](0H)3, produced by boiling an acido-pentammino-iridium salt with aqueous potassium hydroxide, is treated with nitric acid. It is precipitated in colourless microscopic plates, and on heating to 100° C. it is transformed into nitrato-pentammino-iridium nitrate. An aqueous solution of the salt is transformed into the nitrato-salt on boiling, and the reverse reaction takes place when an aqueous solution of nitrato-pentammino-iridium nitrate is boiled. The same reaction is observed with the corresponding pentammino-rhodium compound. 

Nitrolic acids, when reacted with sodium or potassium hydroxide, produce a reddish-brown colour. The reaction is used for the detection of primary nitroparaffins. Secondary, nitroparaffins form pseudonitroles with nitric acid (VII)... 

Compounds of Gold and Phosphorus.—Phosphine reacts with a solution of auric chloride in anhydrous ether, forming auric phosphide, AuP, a substance decomposed by water or potassium-hydroxide solution, with formation of phosphine and phosphoric add.2 At 100° to 110° C. it-undergoes oxidation in the air. Heating in a current of carbon dioxide causes volatilization of phosphorus. Nitric acid oxidizes the phosphorus, leaving a residue of metallic gold. These reactions indicate the substance to be an alloy of gold and phosphorus. 

Silver Nitrate Reaction. The distillate is treated with nitric acid and silver nitrate the presence of hydrocyanic acid is shown by a white precipitate, which should be stable to the light, and readily soluble in ammonia and potassium hydroxide. 

Chromium(III) hydroxide and lead(II) hydroxide are typical amphoteric hydroxides, (a) Write the formula unit, total ionic, and net ionic equations for the complete reaction of each hydroxide with nitric acid, (b) Write the same kinds of equations for the reaction of each hydroxide with an excess of potassium hydroxide solution. Reference to Table 10-1 may be helpful. 

There are two important things to note as we examine the reaction of hydrochloric acid with aqueous sodium hydroxide and the reaction of nitric acid with aqueous potassium hydroxide ... 

A Write the formula unit equations, the total ionic equations, and net ionic equations for the reactions of nitric acid, HNO3, with potassium hydroxide, KOH, and of carbonic acid, H2CO3, with potassium hydroxide, KOH. What differences do you observe between the net ionic equation for the reaction of nitric acid, a strong acid, with a strong base and the net ionic equation for the reaction of carbonic acid, a weak acid, with a strong base ... 

Obtained by reaction of nitric acid (d = 1.42) with 2-hydroxy-4,4 -dimethoxybenzophenone in acetic acid at 24° (major product) [592]. Preparation by saponification of 2-(4-anisoyloxy)-4,4 -dimethoxy-5-nitrobenzo-phenone (SM) with potassium hydroxide in refluxing ethanol for 1 h (70%). SM was obtained by oxidation of 2,3-bis(4-methoxyphenyl)-6-methoxy-5-nitroben-zofuran with chromium trioxide in refluxing acetic acid for 45 min (75%) [1116]. 

A solution of potassium dichromate is made basic with sodium hydroxide the color changes from red to yellow. Addition of silver nitrate to the yellow solution gives a precipitate. This precipitate dissolves in concentrated ammonia but re-forms when nitric acid is added. Write balanced net ionic equations for all the reactions in this sequence. 

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