Select the incorrect reaction.NH21. NaNO2, HCI2. CuCNaCNO b.NO2NH2SnOcBrH₂NPhNaBH₂CNHCIBrHNPhO d.се忌CN1. KOHNH2.Br Ph3. KOH, H₂O1. LAH2. H₂OJH2N'N

Option a: This option is correct because when an aromatic amine is treated with sodium nitrite and…

Answered: Select the incorrect reaction. NH2 1.…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section: Chapter Questions

Problem 4STP

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On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2HNO3(aq)+Na2CO3(aq)2NaNO3(aq)+H2O(l)+CO2(g) a. Calculate H for this reaction. Approximately 2.0 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 glcm3. What mass of sodium carbonate was required for complete neutralization of the spill, and what quantity of heat was evolved? (Hf for NaNO3(aq) = 467 kJ/mol) b. According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of H, what was their major concern?
A student set up an experiment for six different trials of the reaction between 1.00-M aqueous acetic acid, CH3COOH, and solid sodium hydrogen carbonate, NaHCO3. CH3COOH(aq) + NaHCO3(s) NaCH3CO2(aq) + CO2(g) + H2O() The volume of acetic acid was kept constant, but the mass of sodium bicarbonate increased with each trial. The results of the tests are shown in the figure. (a) In which trial(s) is the acetic acid the limiting reactant? (b) In which trial(s) is sodium bicarbonate the limiting reactant? (c) Explain your reasoning in parts (a) and (b).
68. Aluminum ion may be precipitated from aqueous solution by addition of hydroxide ion, forming Al(OH)3. A large excess of hydroxide ion must not be added, however, because the precipitate of Al(OH)3 will redissolve as a soluble compound containing aluminum ions and hydroxide ions begins to form. How many grains of solid NaOH should be added to 10.0 mL of 0.250 M A1Cl3 to just precipitate all the aluminum?
Consider the generic chemical equationaA+bBcC+dD (where a, b, c, and d represent coefficients for the chemicals A, B, C, and D, respectively). a. How many possible values are there for “c”? Explain your answer. b. How many possible values are there for “c/d”? Explain your answer.
4.13 For the following reactions, determine the value of x. 4C+S84CS2 mol S8 yields x mol CS2 CS2+3O2CO2+2SO2 mol CS2 yields x mol SO2 N2H4+3O22NO2+2H2O mol O2 yields x mol NO2 SiH4+2O2SiO2+2H2O 1.3103 mol SiH4 yields x mol H2O
Magnesium metal (a component of alloys used in aircraft and a reducing agent used in the production of uranium, titanium, and other active metals) is isolated from sea water by the following sequence of reactions: Mg2+(aq)+Ca(OH)2(aq)Mg(OH)2(s)+Ca2+(aq)Mg(OH)2(s)+2HCl(aq)MgCl2(s)+2H2O(l)MgCl2(l)electrolysisMg(s)+Cl2+Cl2(g) Sea water has a density of 1.026 g/cm3 and contains 1272 parts per million of magnesium a5 Mg2+(aq) by mass. What mass, in kilograms, of Ca(OH)2; is required to precipitate 99.9% of the magnesium in 1.00103 L of sea water?
Calcium carbonate, CaCO3, can be obtained in a very pure state. Standard solutions of calcium ion are usually prepared by dissolving calcium carbonate in acid. What mass of CaCO3 should be taken to prepare 500. mL of 0.0200 M calcium ion solution?
You need to make a 0.300-M solution of NiSO4(aq). Calculate the mass of NiSO4 · 6H2O you should put into a 0.500-L volumetric flask.
What is the product of the reaction series shown below? NH2 CI NANO,, HCI CUCN LIAH,, H,O H,0,0°C CN NH NH2 .CI .CI .CI A. В. C. D. O B O D MacBook Pro G Search or type URL & * 4 5 7 8 Y U o o O %23
35. The acid-base reaction NAOH + HCI --> NaCl + H20 is considered a(n): a. Combustion reaction b. Single displacement reaction C. Combination reaction d. Double displacement reaction e. Decomposition reaction O a O b
Complete the reaction scheme 1) Mg, éter A HBr H2SO4 КMnОд сonc. В calor A 2) 3) H30*
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Select the incorrect reaction. NH2 1. NaNO2, HCI 2. CuCN a CN O b. NO2 NH2 Sn Oc Br H₂N Ph NaBH₂CN HCI Br HN Ph O d. се 忌 CN 1. KOH NH 2. Br Ph 3. KOH, H₂O 1. LAH 2. H₂O J H2N 'N