Chemistry for Engineering Students
3rd Edition
ISBN: 9781285199023
Author: Lawrence S. Brown, Tom Holme
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 4.63PAE
4.61 What is actually measured by the octane ratings of different grades of gasoline?
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5. Calculate the total amount of heat transferred as 50 g of wat Specific heat H₂O (g) 2.00 J/g°C
-10 °C.
Specific heat H₂O (1)
Specific heat H₂O (s)
4.18 J/g°C
2.11 J/g°C
Heat of vaporization
2260 J/g
Heat of fusion
334 J/g
Melting point
0°C
6. Calculate the total amount of heat transferred as 25 g of
water is heated from 50 °C to 100 °C as a gas.
Boiling point
100 °C
Calculate the total amount of heat
transferred as 50 g of Water -10°C.
Calculate the total amount of heat
transferred as 25 g of water is heated
from 50°C to 100°C as a gas.
\table[[Specific heat H₂O(g), 2.00°C
Η
2
g
5. Calculate the total amount of heat transferred as 50 g of wat Specific heat H₂O (g) 2.00 J/g°C
-10 °C.
4.18 J/g°C
2.11 J/g°C
2260 J/g
334 J/g
Specific heat H₂O (1)
Specific heat H₂O (s)
Heat of vaporization
Heat of fusion
Melting point
6. Calculate the total amount of heat transferred as 25 g of
water is heated from 50 °C to 100 °C as a gas.
Boiling point
100 °C
0°C
Write formulas for ionic compounds composed of the following ions.
Use units as a guide to your solutions.
24. sodium and nitrate
25. calcium and chlorate
26. aluminum and carbonate
27.
CHALLENGE Write the formula for an ionic compound formed by ions from a group 2 element and polyatomic ions composed of only carbon and oxygen.show work step by step
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 - If 3.4 mol Al and 6.2 mol Fe2O3 are mixed, what is...Ch. 4 - If 8.4 moles of disilane, Si2H6, is combined with...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. 4.36PAECh. 4 - Prob. 4.37PAECh. 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. 4.52PAECh. 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. 4.55PAECh. 4 - Prob. 4.56PAECh. 4 - Hydrazine, N2H4, is a weak base and can react with...Ch. 4 - Prob. 4.58PAECh. 4 - Prob. 4.59PAECh. 4 - Prob. 4.60PAECh. 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. 4.64PAECh. 4 - Prob. 4.65PAECh. 4 - 4.64 Using the web, find information about the...Ch. 4 - 4.65 Using the web, find out how lead “poisons”...Ch. 4 - Prob. 4.68PAECh. 4 - You have 0.954 g of an unknown acid, H2A, which...Ch. 4 - Prob. 4.70PAECh. 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. 4.73PAECh. 4 - One way of determining blood alcohol levels is by...Ch. 4 - Prob. 4.75PAECh. 4 - The pictures below show a molecular-scale view of...Ch. 4 - The pictures below show a molecular-scale view of...Ch. 4 - 4.84 Aluminum chloride (AlCl3) is used as a...Ch. 4 - 4.85 In the cold vulcanization of rubber, disulfur...Ch. 4 - Prob. 4.80PAECh. 4 - Prob. 4.81PAECh. 4 - 4.88 A quality control technician needs to...Ch. 4 - Prob. 4.83PAECh. 4 - 4.90 Iron metal can be refined (rom the mineral...Ch. 4 - Prob. 4.85PAECh. 4 - Prob. 4.86PAECh. 4 - 4.93 A mixture of methane (CH4) and propane (C3H8)...Ch. 4 - Prob. 4.88PAECh. 4 - Prob. 4.89PAECh. 4 - Prob. 4.90PAECh. 4 - Prob. 4.91PAECh. 4 - Prob. 4.92PAECh. 4 - Prob. 4.93PAECh. 4 - Prob. 4.94PAECh. 4 - Prob. 4.95PAECh. 4 - Prob. 4.96PAECh. 4 - Prob. 4.97PAECh. 4 - 4.104 When 2.750 g of the oxide Pb3O4 is heated to...Ch. 4 - Prob. 4.99PAECh. 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. 4.103PAECh. 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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- ADDITIONAL PRACTICE PRACTICE Problems Write formulas for ionic compounds composed of the following ions. Use units as a guide to your solutions. 24. sodium and nitrate 25. calcium and chlorate 26. aluminum and carbonate 27. CHALLENGE Write the formula for an ionic compound formed by ions from a group 2 element and polyatomic ions composed of only carbon and oxygen. ounds 1998arrow_forward7:35 < Dji Question 19 of 22 5G 50% Submit What is the pH of a buffer made from 0.350 mol of HBrO (Ka = 2.5 × 10-9) and 0.120 mol of KBRO in 2.0 L of solution? | 1 2 3 ☑ 4 5 6 C 7 8 ☐ 9 +/- Tap here for additional resources ||| 0 ×10 Гarrow_forwardaw the major substitution products you would expect for the reaction shown below. If substitution would not occur at a significant rate under these conditions, check the box underneath the drawing area instead. Be sure you use wedge and dash bonds where necessary, for example to distinguish between major products. Note for advanced students: you can assume that the reaction mixture is heated mildly, somewhat above room temperature, but strong heat or reflux is not used. B C Br HO O Substitution will not occur at a significant rate. Explanation Check + Х Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibarrow_forward
- Complete the following reactions with the necessary reagents to complete the shown transformation. Example: 1. 2. ? 3. 018 Br OH Answer: H₂O, H2SO4, HgSO4arrow_forward7:34 • < Question 18 of 22 5G 50% Submit What is the pH of a buffer made from 0.220 mol of HCNO (Ka = 3.5 × 10-4) and 0.410 mol of NaCNO in 2.0 L of solution? 1 2 3 ☑ 4 5 6 C 7 8 | 9 +/- 0 ×10 Tap here for additional resources ||| Гarrow_forward6:46 ✔ 5G 58% < Question 7 of 22 Submit What is the primary species in solution at the halfway point in a titration of NH3 with HBr? A NH3 and H+ B NH₁+ and H+ C NH4+ D NH3 and NH4+ Tap here for additional resources |||arrow_forward
- 6:49 Dji < Question 15 of 22 4G 57% Submit The pOH of a solution is 10.50. What is the OH- concentration in the solution? A 3.2 × 10-4 M B C 3.2 x 10-11 M 10.50 M D 4.2 M E 3.50 M Tap here for additional resources |||arrow_forwardヨ 6:49 Dji < Question 13 of 22 5G 57% Submit The pH of a solution is 2.40. What is the H+ concentration in the solution? A B 2.5 x 10-12 M 4.0 × 10-3 M C 2.40 M D 4.76 M 11.60 M Tap here for additional resources |||arrow_forwardヨ C 6:48 Di✔ < Question 12 of 22 5G 57% Submit The pH of a solution is 12.50. What is the H+ concentration in the solution? A 0.032 M B 3.2 × 10-13 M 1.5 M D 9.25 M 12.50 M Tap here for additional resources |||arrow_forward
- ヨ C 6:48 Di✔ < Question 11 of 22 5G 57% Submit The pH of a solution is 1.50. What is the H+ concentration in the solution? A 0.032 M B 3.2 × 10-13 M 1.5 M D 2.15 M 12.50 M Tap here for additional resources |||arrow_forwardSelect the product of the following reaction. Lon HO Meat ?? CH₂OH OH A D OH OCH B OH of OCH of CH חח E C CHarrow_forwardPlease correct answer and don't used hand raitingarrow_forward
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