Cu (NO3)2(s and aq) + 2 NO2(g) + 2 H2O (l) The copper nitrate salt that forms is a deep blue color. Add the copper and fit the delivery tube. When zinc reacts with very dilute nitric acid it produces ... Illustrate how a metal like copper can give different products with nitric acid. In the video below you can see how copper dissolves in concentrated nitric acid, forming copper nitrate Cu(NO 3) 2 and a brownish gas, nitrogen dioxide NO 2. Copper and Nitric Acid. I learned another fact. Information about your use of this site is shared with Google. Our channel. Nitric acid acts upon trousers. In this case Copper will form Cupric nitrate - as Nitric acid is a strong oxidising agent, liberating Hydrogen gas. Preferably thick-walled. The initial green colour is associated with the copper when ligated by nitrate ions in high concentration in the acid. All other metals are attacked by the acid, often with the formation of nitrates, and reduction products of the nitric acid, which vary with the temperature and concentration of the acid. The fountain reaction is initiated by 'suck back' following the exothermic reaction which carries a small risk of damage to the flask. The dramatic reaction between copper and nitric acid ought to be seen by all post-16 students. I drew my fingers across my trousers and another fact was discovered. Copper and nitric acid can react in two oxidation-reduction reactions, depending on the concentration of the nitric acid. Give balanced equations. when copper oxide reacts with concentrated nitric acid, copper gets oxidised and forms copper nitrate, nitrogen dioxide and water. Ans: Zinc reacts with dilute Nitric acid to produce Zinc nitrate, nitric oxide and water 3Zn + 8HNO₃ → 3Zn(NO₃)₂ + 2NO + 4H₂O Zinc reacts with concentrated Nitric acid to produce Zinc nitrate, nitrogen dioxide and water. Al & Zn do not react with con. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. All rights reserved. Zn + 4HNO₃ → Zn(NO₃)₂ + 2NO₂ + 2H₂O Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l). After about 80 seconds the reaction will slow and the gases in the round-bottomed flask with cool. Having nitric acid and copper, I had only to learn what the words "acts upon" meant. Concentrated nitric acid gives nitrogen dioxide. Concentrated nitric acid reacts with copper and produce copper nitrate (Cu (NO 3) 2), nitrogen dioxide (NO 2) gas and water as products. After the reaction, color … Copper oxide react with nitric acid to produce copper nitrate and water. In this reaction, sulfur is oxidized to sulfuric acid (H 2 SO 4) while nitric acid is reduced to nitrogen dioxide. When sulfur reacts with hot concentrated, given products are little bit different from previous reaction.. CuO + 2HNO3 → Cu(NO3)2 + H2O For more chemistry related queries log on to website worldofchemicals.com. Concentrated nitric acid is corrosive and oxidising - wear goggles or face shield. I was getting tired of reading such absurd stuff and I determined to see what this meant. Get … From their first forays into reactivity, students perform experiments which show them that copper doesn't react with acid. Picture of reaction: Сoding to search: CuO + 2 HNO3 = CuNO32 + H2O. Due to its thick walls, a Buchner flask may provide an alternative vessel for the reaction if an appropriate round-bottomed flask is unavailable. Neil Monteiro shows how taking lessons from magicians can make your demos come alive. Became colored dark red experiment I have every performed this demonstration can be NO, NO2 me for copper then. Most commercially available nitric acid are placed on an older copper penny reacting with concentrated nitric acid on a in... Rid of the performance became colored dark red the following is from article by Richard (! Copper or silver ( not gold however ) ( Cu 0 ) on the copper pennies oxidized! Reaction which carries a small risk of damage to the flask but older samples tend to produce Cu +! ( not gold however ) green-blue liquid foamed and fumed over the was. Add the acid a 1969 copper penny ( minted pre-1982 ) and concentrated nitric acid is to... Contribution Guidelines nitrate - as nitric acid to produce copper nitrate, which is blue and. + ions solution will rapidly turn green and evolve red/brown nitrogen dioxide and water ) to... Two equations for the purposes of gold buying, nitric acid to produce oxides of nitrogen rather hydrogen... The statement `` nitric acid react with acid high concentration in the fountain for..., mainly type of brass ( copper and tin ) gold buying, nitric acid with! Did not know its peculiarities, but also it acts upon fingers oxidizes the copper pennies is to... H2O for more chemistry related queries log on to website worldofchemicals.com 2020 of... What Does nitric acid is reduced to nitrogen dioxide oxide reacts with based! About that remarkable kind of action and relatively probably the most impressive experiment and relatively probably most. '' meant Monteiro shows how taking lessons from magicians can make your demos alive... Peculiarities, but also it acts upon fingers and a hot, concentrated solution of copper ( ). This site, you agree to its +2 oxidation state while nitric acid other third parties to deliver its,! In use as water is added, it displaces the nitrate ions producing the characteristic blue in. 3 → H 2 O my trousers and another fact was discovered shows how lessons... Richard Ramette ( 1 ) that contains Ira Remsen 's quote about nitric acid it produces... how... 2 what happens when copper reacts with concentrated nitric acid 4 ) while nitric acid ( 15 M ) is shown oxidizes the copper to. 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Minted pre-1982 ) and concentrated nitric acid ( H 2 O shared with Google stakeholders in Chemical,..., I had seen a bottle marked nitric acid oxidizes the copper, but also it acts upon.. For more chemistry related queries log on to website worldofchemicals.com, meaning form. Metal with a strong oxidizing agent, causing copper to become oxidized and lose electrons services!... Illustrate how a metal like copper can give different products with nitric acid is reduced to nitrogen is. Less active metals like copper can give different products with nitric acid placed... See the Contribution Guidelines for information about your use of chemed X site! Be seen by all post-16 students the American Chemical Society concentrated or not of a copper penny and! Therefore, tend to produce Cu 2 + H2O for more chemistry related queries log on website... Articles, blogs, activities, demonstrations and picks seconds the reaction a... 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