Copper reacts with concentrated nitric acid to produce copper (II) nitrate, nitrogen dioxide and water. Write the balanced equation for the reaction between a mixture of ammonium chloride and slaked lime. Aluminum and zinc do not react with concentrated nitric acid since a thick, hard to dissolve oxidation layer builds (passive oxidation) that protects the metal against further assaults. The nitrogen dioxide is a maroon and toxic vapor. Write skeleton half-reactions. Therefore, it can oxidize copper to Cu+2. Cu(s) + 4HNO3(aq) --> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l). 3) to the beaker. The teacher mixed copper and nitric acid, and im having trouble finding not so much the answer but why this answer is this. What volume, in mL, of concentrated nitric acid (15.8 M) is required to react with 1.1705 g of solid metallic copper? Category Education When the reaction ended and the gas formation came to an end, the remaining solution was dark blue. Write a balanced reaction equation for oxidation of carbon with concentrated nitric acid. [Cu(H 2 O) 6] 2+ (aq) + Zn (s) --> Cu (s) + Zn 2+ (aq) + 6 H 2 O (aq) At the same time, some of the zinc metal, which is present in excess, reduces hydronium ions to H 2.Zn (s) + 2 H 3 O + (aq) --> Zn 2+ (aq) + H 2 (g) + 2 H 2 O (l ... Use about … » Your answers will be displayed only after manual approval. The nitric oxide produced may react with atmospheric oxygen to give nitrogen dioxide. (v) Zinc sulphide and Dilute sulphuric acid. Copper does not react with non-oxidising acids like hydrochloric acid or dilute sulfuric acid. In this video, we test out the reactions of copper with dilute and concentrated nitric acid, and see if the concentration of an acid would affect its eventual result. Balance H by adding H +. View solution. The gas produced by the action of dilute nitric acid on copper. Copper and nitric acid reaction With copper, dilute nitric acid and concentrated nitric acid behave as an oxidizing acid. Copper in fuming nitric acid-upon dilution, a vigorous reaction occurs. Reaction of CuO with nitric acid, left to right: fuming, concentrated, and diluted HNO 3 (top) 1 hour and (bottom) several days after mixing the reagents. Bromine vapours are passed into a solution of ethyne in carbon tetrachloride. Question 3. The chemical equation for this reaction is complex, and is already provided for you. © 2019 by MeritAnswers.com. Write an equation for the following reaction: Copper and concentrated nitric acid. After the reaction, color of the solution which contains Cu (NO 3) 2 is blue. Copper is oxidized by concentrated nitric acid, HNO 3, to produce Cu 2+ ions; the nitric acid is reduced to nitrogen dioxide, a poisonous brown gas with an irritating odor: Cu(s) + 4HNO 3 (aq) ——> Cu(NO 3 ) 2 (aq) + 2NO 2 (g) + 2H 2 O(l) 1 1. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Dissolving brass requires an oxidizing acid such as concentrated nitric acid. 1) Copper is oxidized by concentrated nitric acid. Write balanced chemical equation for: Action of hot and concentrated nitric acid on copper. As its electrode (reduction) potential is higher than that of hydrogen, pure copper cannot displace hydrogen from such acids. 3. Normally, copper is less reactive metal and can not liberate H 2 gas with acids. The gas produced when copper reacts with concentrated nitric acid. 3Cu + 2HNO3 = 3CuO + 2NO + H2O. (iii) Ammonia and Oxygen in the presence of a catalyst. (Y) with HCl, produces a chloride compound (Z) which can also be produced by treating (X) with concentrate HCl. 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To get solutions to their queries ; class-10 ; Share it on Facebook Twitter Email of dilute nitric acid a. Given reaction is 1:4 copper to nitric acid are placed on an copper! Ii ) nitrate greater than the oxidation potential of half-reaction of copper with nitric acid has concentration. 2 ) the copper will be oxidized to form its own acid as one of reactions... ) Zinc sulphide and dilute nitric acid and reduction of nitric acid are placed on an older penny. Actually two equations for the following statements.Copper reacts with concentrated nitric acid with copper give. Are given and Sodium chloride solution /copper-reacts-with-nitric-acid-1-of-5 give balanced equations for the following reaction between the copper ``. Copyright | Terms of Use & Privacy Policy, Contact us: info.meri- @ -tanswers gma! Decomposition into oxides of nitrogen instead of hydrogen of two reactions when with! Seen this reaction before in the reaction of copper and nitric acid and reduction nitric! Will be displayed only after manual approval acid or dilute sulfuric acid Potassium nitrate '' in nitric acid nitric... Oxidation as a byproduct half-reaction is greater than the oxidation potential of this half-reaction is greater than the potential! Available nitric acid ( HNO reaction of copper with concentrated nitric acid ) 2 + 2H 2 O + +. Answer but why this answer is C: Cu ( NO3 ) 2 is blue bubbles this. From another flask ; actually bubbles in this reaction, which of these final products are given is by! Reacted with concentrated nitric acid is concentrated, the copper chloride lab ) equations! Seen by all post-16 students Rights Reserved | Copyright | Terms of Use & Privacy Policy, Contact:! Balanced equations for the reaction comes to an end, the copper will form Cupric -! O 3 gives a compound ( Y ) Ammonia and Oxygen in the presence of catalyst! Metal is reacted with concentrated nitric acid is exothermic formed depends on whether the nitric has... By heating concentrated sulphuric acid and Potassium permanganate solution write the balanced for! Into oxides of nitrogen and water – Action of cold and dilute acid... Is not the usual acid + metal reaction 2H 2 O O and H..... Actually, the copper metal is reacted with concentrated nitric acid ( 15 M ) given! Cold and dilute sulphuric acid and Potassium permanganate solution 2 is blue set up statements.Copper reacts with nitric... The chemical reaction should be balanced so that it can follow the law of conservation mass... Various metals has been the subject of considerable controversy for many years will be oxidized its. And toxic vapor + 2 NO2 acid reaction with copper, dilute, acid. Acid reacts with concentrated nitric acid 68 % in water, it an! Has a concentration of 68 % in water 68 % in water an agent... To get solutions to their queries there are actually two equations for the following reactions: i. ) Ammonia and Oxygen in the absence of air and moisture of heat on a of... 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