Chemistry for Engineering Students
4th Edition
ISBN: 9781337398909
Author: Lawrence S. Brown, Tom Holme
Publisher: Cengage Learning
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Chapter 4, Problem 4.98PAE
Interpretation Introduction
Interpretation: The correct formula for the complex ion with general formula
Concept introduction:
The continuous variation method can be used to get exact molar ratio of reactant. Here they have noted the change of concentration of complex ion with the volume of Fe2+ ion solution. But total volume of mixture of two solutions always remains constant.
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44. Use Table 8.3 to obtain AH° for the following thermochemical
equations:
(a) Zn(s) + 2H*(aq) → Zn²+(aq) + H;(g)
(b) 2H,S(g) + 3 O2g) → 2SO2(g) + 2H;O(g)
(c) 3Ni(s) + 2NO,"(aq) + 8H*(aq)→
3Ni?+(aq) + 2NO(g) + 4H20(1)
6. A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*?). The solution is diluted to
500.00 mL and three 100.00 mL aliquots are treated with ammonia, the resulting Al(OH)3 precipitate is
dried and then ignited to alumina, Al2O; (MM = 101.961 g/mol). If the average mass of alumina
obtained was 1.444 g, what was the percentage of aluminum (MM = 26.9815 g/mol) in the original
sample?
Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is
often found mixed up with sand. The ilmenite can be separated from
the sand with magnets. The titanium can then be extracted from the
ilmenite by the following set of reactions:
FeTiO3(s)+3Cl₂(g) +3C(s)-3CO(g)+FeCl₂ (s)+TiCl, (g)
TiCL (9)+2Mg(s)-2MgCl₂(1)+Ti(s)
Suppose that an ilmenite-sand mixture contains 23.8 % ilmenite by
mass and that the first reaction is carried out with a 90.4% yield.
Part A
If the second reaction is carried out with an 87.0 % yield, what mass of titanium can be obtained from 1.20 kg of the ilmenite-sand mixture?
Express your answer with the appropriate units.
1-
μA
?
Chapter 4 Solutions
Chemistry for Engineering Students
Ch. 4 - Describe the chemical composition of gasoline.Ch. 4 - Write balanced chemical equations for the...Ch. 4 - Prob. 3COCh. 4 - Calculate the amounts of reactants needed in a...Ch. 4 - Prob. 5COCh. 4 - Prob. 6COCh. 4 - Prob. 7COCh. 4 - 4.1 List at least two factors that make it...Ch. 4 - 4.2 What is an alkane?Ch. 4 - 4.3 Explain the difference between complete and...
Ch. 4 - 4.4 Automobile exhaust often contains traces of...Ch. 4 - 4.5 Methane, ethane, and propane are also...Ch. 4 - 4.6 Use the web to research prices of gasoline at...Ch. 4 - For the following reactions, write the ratios that...Ch. 4 - 4.8 In an experiment carried out at very low...Ch. 4 - 4.9 Sulfur, S8, combines with oxygen at elevated...Ch. 4 - 4.10 How many moles of oxygen can be obtained by...Ch. 4 - 4.11 MTBE, C5H12O, is one of the additives that...Ch. 4 - 4.12 In petroleum refining, hydrocarbons are often...Ch. 4 - 4.13 For the following reactions, determine the...Ch. 4 - 4.14 The combustion of liquid chloroethylene,...Ch. 4 - 4.15 What mass of the unknown compound is formed...Ch. 4 - 4.16 Many metals react with halogens to give metal...Ch. 4 - 4.17 Phosgene is a highly toxic gas that has been...Ch. 4 - Prob. 4.18PAECh. 4 - 4.19 How many metric tons of carbon are required...Ch. 4 - 4.20 Assuming a charcoal briquette is composed...Ch. 4 - 4.21 Ammonium nitrate, NH4NO3, will decompose...Ch. 4 - 4.22 Generally, an excess of O2 is needed for the...Ch. 4 - 4.23 In the reaction of arsenic with bromine,...Ch. 4 - 4.24 Ammonia gas can be prepared by the reaction...Ch. 4 - 4.25 When octane is combusted with inadequate...Ch. 4 - 4.26 The equation for one of the reactions in the...Ch. 4 - 4.27 Copper reacts with sulfuric acid according to...Ch. 4 - 4.28 One of the steps in the manufacture of nitric...Ch. 4 - 4.29 When Al(OH)3 reacts with sulfuric acid, the...Ch. 4 - 4.30 Copper reacts with nitric acid via the...Ch. 4 - 4.31 How much HNO3 can be formed in the following...Ch. 4 - 4.32 Hydrogen and oxygen are reacted and the water...Ch. 4 - 4.33 Silicon carbide, an abrasive, is made by the...Ch. 4 - Prob. 4.34PAECh. 4 - Prob. 4.35PAECh. 4 - 4.36 Sometimes students in chemistry labs...Ch. 4 - 4.37 The theoretical yield and the actual yield...Ch. 4 - 4.38 A reaction that produced 4.8 mg of taxol, an...Ch. 4 - Methanol, CH3OH, is used in racing cars because it...Ch. 4 - 4.40 When iron and steam react at high...Ch. 4 - 4.41 The percentage yield of the following...Ch. 4 - 4.42 Sulfur hexafluoride is a very stable gas...Ch. 4 - 4.43 Magnesium nitride forms in a side reaction...Ch. 4 - 4.44 Industrial production of hydrogen gas uses...Ch. 4 - 4.45 If 21 g of H2S is mixed with 38 g of O2 and...Ch. 4 - 4.46 A mixture of 10.0 g of NO and 14.0 g of NO2...Ch. 4 - 4.47 Silicon carbide is, an abrasive used in the...Ch. 4 - 4.48 Elemental phosphorous is used in the...Ch. 4 - 4.49 Small quantities of hydrogen gas can be...Ch. 4 - Prob. 4.50PAECh. 4 - 4.51 What is the role of an indicator in a...Ch. 4 - 4.52 What volume of 0.812 M HCl, in milliliters,...Ch. 4 - Prob. 4.53PAECh. 4 - Prob. 4.54PAECh. 4 - Hydrazine, N2H4, is a weak base and can react with...Ch. 4 - Prob. 4.56PAECh. 4 - Prob. 4.57PAECh. 4 - Prob. 4.58PAECh. 4 - 4.59 Aluminum dissolves in HCI according to the...Ch. 4 - 4.60 Why are fuel additives used?Ch. 4 - 4.61 What is actually measured by the octane...Ch. 4 - Prob. 4.62PAECh. 4 - Prob. 4.63PAECh. 4 - 4.64 Using the web, find information about the...Ch. 4 - 4.65 Using the web, find out how lead “poisons”...Ch. 4 - 4.66 If 3.4 mol Al is mixed with 1.5 times as many...Ch. 4 - 4.67 If 8.4 moles of disilane, Si2H6, are combined...Ch. 4 - 4.68 The pictures below show a molecular-scale...Ch. 4 - 4.69 The pictures below show a molecular-scale...Ch. 4 - 4.70 The particulate scale drawing shown depicts...Ch. 4 - 4.71 The particulate scale drawing shown depict...Ch. 4 - 4.72 The picture shown depicts the species present...Ch. 4 - Prob. 4.73PAECh. 4 - Prob. 4.74PAECh. 4 - Prob. 4.75PAECh. 4 - Prob. 4.76PAECh. 4 - You have 0.954 g of an unknown acid, H2A, which...Ch. 4 - Prob. 4.78PAECh. 4 - 4.79 Phosphoric add (H3PO4) is important in the...Ch. 4 - 4.80 The reaction shown below is used to destroy...Ch. 4 - Prob. 4.81PAECh. 4 - One way of determining blood alcohol levels is by...Ch. 4 - Prob. 4.83PAECh. 4 - 4.84 Aluminum chloride (AlCl3) is used as a...Ch. 4 - 4.85 In the cold vulcanization of rubber, disulfur...Ch. 4 - Prob. 4.86PAECh. 4 - Prob. 4.87PAECh. 4 - 4.88 A quality control technician needs to...Ch. 4 - Prob. 4.89PAECh. 4 - 4.90 Iron metal can be refined (rom the mineral...Ch. 4 - Prob. 4.91PAECh. 4 - Prob. 4.92PAECh. 4 - 4.93 A mixture of methane (CH4) and propane (C3H8)...Ch. 4 - Prob. 4.94PAECh. 4 - Prob. 4.95PAECh. 4 - Prob. 4.96PAECh. 4 - Prob. 4.97PAECh. 4 - Prob. 4.98PAECh. 4 - Prob. 4.99PAECh. 4 - Prob. 4.100PAECh. 4 - Prob. 4.101PAECh. 4 - Prob. 4.102PAECh. 4 - Prob. 4.103PAECh. 4 - 4.104 When 2.750 g of the oxide Pb3O4 is heated to...Ch. 4 - Prob. 4.105PAECh. 4 - 4.106 An ore sample with a mass of 670 kg contains...Ch. 4 - 4.107 Existing stockpiles of the refrigerant...Ch. 4 - 4.108 Elemental analysis is sometimes carried out...Ch. 4 - Prob. 4.109PAECh. 4 - 4.110 Write the balanced chemical equation lot the...Ch. 4 - 4.111 Aluminum metal reacts with sulfuric acid to...Ch. 4 - 4.112 A metallurgical firm wishes to dispose of...
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