2015年3月27日 · Nitric acid is one of the few acids that dissolved copper (HCl and H2SO4 won't). Using concentrated nitric acid, the copper in the penny begins to react imm...

2005年4月13日 · Nickel does dissolve in nitric acid, but the concentration must be carefully adjusted. I have made nickel nitrate from the Dutch coin 'dubbeltje', which is made of 99+ nickel metal (with mainly tin as an impurity). I found that in HNO3 (60%) the nickel did not dissolve, in 40% HNO3 it dissolves vigorously, in 20% HNO3 it did not dissolve.

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2020年11月11日 · We put Nitric Acid through its paces, including dissolving coins. More links and info in full description ↓↓↓ Featuring Sir Martyn Poliakoff and Neil Barnes....

2011年10月31日 · Cu (s) + 4HNO 3 (aq) → Cu (NO 3) 2 (aq) + 2NO 2 (g) + 2H 2 O (l) The initial green colour is associated with the copper when ligated by nitrate ions in high concentration in the acid.* As water is added, it displaces the nitrate ions …

21.6 g of silver coin is dissolved in HNO 3. When NaCl is added to this solution, all silver is precipitated as AgCl. The weight of AgCl is found to be 14.35 g then % Ag + HNO 3 NaCl AgCl of silver in coin is :

2020年2月12日 · 21.6 g of silver coin is dissolved in H N O3 H N O 3. When NaCl is added to this solution, all silver is precipitated as AgCl. The weight of AgCl is found

21.6 g of silver coin is dissolved in H N O3. When N aCl is added to this solution, all silver is precipitated as AgCl. The weight of AgCl is found to be 14.35 g, then % of silver in coin is: A silver coin weighing 12 g is dissolved in concentrated H N O3 solution, on adding N aCl(aq) solution, 14.35 g of AgCl is deposited.

2022年10月5日 · 21.6 gram of a coin containing silver is dissolved in HNO3, when NaCl is added to this solution, all silver is precipitated as AgCl. The weight of AgCl is found to be 14.35 g. Find percentage of silver in the coin. (Atomic mass of Ag=108 and Cl=35.5)

The reaction of nitric acid with coin that is mainly copper is really fascinating. The coin completely dissolved in nitric acid by giving beautiful blue colo...