When the molar fraction of the silver is less than 0.65 and nitric acid activity and temperature are high, the dissolution is controlled by the outward diffusion of silver nitrate through the undissolved gold layer. The dissolution rate is affected by the composition of the alloy. When the ...
A silver coin weighing11.34gwas dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present asAgNO3) was precipitated as silver chloride. The mass of the precipitated silver chloride was14.35g. Calculate the percentage of silver in the coin. ...
Preparative Methods: Silver(I) Nitrate (30 g) is dissolved in 200 mL of distilled water, and Celite (30 g) is added. To the stirred mixture, a solution of Sodium Carbonate (Na 2 CO 3 路10H 2 O) (30 g) in distilled water (300 mL) is slowly added. The yellow鈥揼reen precipitate...
Silver nitrate is prepared by dissolving silver metal in dilute nitric acid. The solution is evaporated and residue is heated to dull red heat with concentrated nitric acid to decompose impurities such as copper nitrate. Residue then is dissolved in water, filtered, and recrystallized to obtain pur...
Stream sediments of two well-weathered and aerated drainage areas of Colorado containing anomalous amounts of silver were allowed to react by shaking with nitric acid of different concentrations (1鈥 10M). Silver, manganese, and iron simultaneously dissolved were determined by atomic absorption. The ...
Impregnation ofsilica gel60 plates can be achieved withsilver nitrate(10% w/v) dissolved in water–methanol (15 : 85 v/v). Precoated TLC andHPTLCplates are dipped in the silver nitrate solution for 10–20 s. After draining, the plates are dried in air under fume extraction and then hea...
AgCl is a slightly soluble compound in water. If the very soluble compound NaCl is added to a saturated solution of AgCl, what will happen to the concentration of dissolved Ag^+ to restore the AgCl to it equilibrium KSP? Is silver...
Metallic silver can be dissolved from gold alloys of less than 30 percent gold by boiling with 30-percent-strength nitric acid in a process referred to as parting. Boiling with concentrated sulfuric acid to separate silver and gold is called affination. Both these processes are used on a ...
The silver nitrate was dissolved in the oleic acid and added to the isobutanol. Although the result was continuously stirred, it did not dissolve. The sediment obtained following heating and reaction in this condition was subjected to x-ray measurement but almost no peaks attributable to silver ...
Silver sulfide is reversed in a process for regenerating a dissolved silver-containing spent bleach fixer solution. The process is particularly suited for treating the bleach fixer solution in a manne