Laboratory Experiments for Chemistry: The Central Science (13th Edition)
13th Edition
ISBN: 9780321949912
Author: Theodore E. Brown, John H. Nelson, Kenneth C. Kemp
Publisher: PEARSON
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Chapter 16, Problem 1E
When magnesium metal is burned in air (Figure 3.6 ), two products are produced. One is magnesium oxide, MgO. The other is the product of the reaction of Mg with molecular nitrogen, magnesium nitride. When water is added to magnesium nitride, it reacts to form magnesium oxide and ammonia gas. (a) Based on the charge of the nitride ion (Table 2.5 ), predict the formula of magnesium nitride. (b) Write a balanced equation for the reaction of magnesium nitride with water. What is the driving force for this reaction? (c) In an experiment, a piece of magnesium ribbon is burned in air in a crucible. The mass of the mixture of MgO and magnesium nitride after burning is 0.470 g. Water is added to the crucible, further reaction occurs, and the crucible is heated to dryness until the final product is 0.486 g of MgO. What was the mass percentage of magnesium nitride in the mixture obtained after the initial burning? (d) Magnesium nitride can also be formed by reaction of the metal with ammonia at high temperature. Write a balanced equation for this reaction. If a 6.3-g Mg ribbon reacts with 2.57 g NH3(g) and the reaction goes to completion, which component is thelimiting reactant? What mass of H2 (g) is formed in the reaction? (e) The standard enthalpy of formation of solid magnesium nitride is -461.08 kJ/mol. Calculate the standard enthalpy change for the reaction between magnesium metal and ammonia gas.
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Chapter 16 Solutions
Laboratory Experiments for Chemistry: The Central Science (13th Edition)
Ch. 16.2 - Consider the following equation: Ca + (g) + e-...Ch. 16.2 -
7.55(a) Does metallic character increase,...Ch. 16.2 - Prob. 16.2.1PECh. 16.2 - Predict whether each of the following oxides is...Ch. 16.2 - Prob. 16.3.1PECh. 16.2 - Would you expect manganese(II) oxide, MnO, react...Ch. 16.3 - Prob. 16.4.1PECh. 16.3 - Prob. 16.4.2PECh. 16.3 - An element X reacts with oxygen to form X02 and...Ch. 16.3 - Prob. 16.5.2PE
Ch. 16.4 - Prob. 16.6.1PECh. 16.4 - Prob. 16.6.2PECh. 16.4 - Prob. 16.7.1PECh. 16.4 - Prob. 16.7.2PECh. 16.5 - Write a balanced equation for the reaction that...Ch. 16.5 - (a) As described in Section 7.7 , the alkali...Ch. 16.5 - Prob. 16.9.1PECh. 16.5 - Prob. 16.9.2PECh. 16.6 - Arrange each of the following sets of atoms and...Ch. 16.6 - Prob. 16.10.2PECh. 16.6 - In the ionic compoundsLiF,NaCI,KBr, andRbl, the...Ch. 16.6 - Prob. 16.11.2PECh. 16.6 -
7.38 Write equations that show the process for...Ch. 16.6 - Prob. 16.12.2PECh. 16.6 - Prob. 16.13.1PECh. 16.6 - Prob. 16.13.2PECh. 16.6 - (a) What is the trend in first ionization energies...Ch. 16.6 - Prob. 16.14.2PECh. 16.7 - Prob. 16.15.1PECh. 16.7 - Prob. 16.15.2PECh. 16.7 - Prob. 16.16.1PECh. 16.7 - Prob. 16.16.2PECh. 16.8 - Prob. 16.17.1PECh. 16.8 - Write an equation for the second electron affinity...Ch. 16.9 - If the electron affinity for an element is a...Ch. 16.9 - Prob. 16.18.2PECh. 16.9 -
7.52 What is the relationship between the...Ch. 16.9 - Prob. 16.19.2PECh. 16.10 - Prob. 16.20.1PECh. 16.10 - Prob. 16.20.2PECh. 16 - Mercury in the environment can exist in oxidation...Ch. 16 - When magnesium metal is burned in air (Figure 3.6...Ch. 16 - The dipole moment of chlorine monofluoride,...Ch. 16 - Prob. 3ECh. 16 - Consider the element silicon, Si. Write its...Ch. 16 - Prob. 5ECh. 16 - Prob. 6ECh. 16 - Prob. 7ECh. 16 - Prob. 8ECh. 16 - Prob. 9ECh. 16 - Prob. 10ECh. 16 - Prob. 11ECh. 16 - Prob. 12ECh. 16 - Prob. 13ECh. 16 - Prob. 14ECh. 16 - Prob. 15ECh. 16 - Prob. 16ECh. 16 - Prob. 17ECh. 16 - Prob. 18ECh. 16 - Prob. 19ECh. 16 - Prob. 20ECh. 16 - Which of the these elements is most likely to from...Ch. 16 - Prob. 22ECh. 16 - Which of the following bond is the most polar? H-F...Ch. 16 - Prob. 24ECh. 16 - Prob. 25ECh. 16 - Prob. 26ECh. 16 - Which of the following bonds is the most polar? a....Ch. 16 - Which of the following bonds is most polar: S-Cl,...Ch. 16 - Prob. 29ECh. 16 -
How many valence electrons should appear in the...Ch. 16 - Compare the lewis symbol for neon the structure...Ch. 16 - Prob. 32ECh. 16 - Prob. 33ECh. 16 - Prob. 34ECh. 16 - Prob. 35ECh. 16 - Prob. 36ECh. 16 - Which of the statements about resonance is true?...Ch. 16 - Prob. 38ECh. 16 - Prob. 39ECh. 16 - Prob. 40ECh. 16 - Prob. 41ECh. 16 - A portion of a two-dimensional "slab" of NaCl(s)...Ch. 16 - Prob. 43ECh. 16 - Prob. 44ECh. 16 - Incomplete Lewis structures for the nitrous acid...Ch. 16 - Prob. 46ECh. 16 - Prob. 47ECh. 16 - Prob. 48ECh. 16 - True or false: The hydrogen atom is most stable...Ch. 16 - Prob. 50ECh. 16 - What is the Lewis symbol for each of the following...Ch. 16 - Using Lewis symbols, diagram the reaction between...Ch. 16 - Use Lewis symbols to represent the reaction that...Ch. 16 - Predict the chemical formula of the ionic compound...Ch. 16 - Prob. 55ECh. 16 - Prob. 56ECh. 16 - Prob. 57ECh. 16 - Is lattice energy usually endothermic or...Ch. 16 - NaCI and KF have the same crystal structure. The...Ch. 16 - Consider the ionic compounds KF, NaCl, NaBr, and...Ch. 16 - Which of the following trends in lattice energy is...Ch. 16 - Energy is required to remove two electrons from Ca...Ch. 16 - Prob. 63ECh. 16 - Use data from Appendix C, Figure 7.10, and Figure...Ch. 16 - Prob. 65ECh. 16 - Prob. 66ECh. 16 - Prob. 67ECh. 16 - Using Lewis symbols and Lewis structures, diagram...Ch. 16 - Use Lewis symbols and Lewis structures to diagram...Ch. 16 - Prob. 70ECh. 16 - What is the trend in electronegativity going from...Ch. 16 - Prob. 72ECh. 16 - By referring only to the periodic table, select...Ch. 16 - which of the following bonds are polar? B-F,...Ch. 16 - Prob. 75ECh. 16 - Prob. 76ECh. 16 - Prob. 77ECh. 16 - In the following pairs of binary compounds,...Ch. 16 - Prob. 79ECh. 16 - Prob. 80ECh. 16 - Draw the dominant Lewis structure for the...Ch. 16 - Prob. 82ECh. 16 - Prob. 83ECh. 16 - Prob. 84ECh. 16 - Prob. 85ECh. 16 - Prob. 86ECh. 16 - Prob. 87ECh. 16 - Prob. 88ECh. 16 - Prob. 89ECh. 16 - Prob. 90ECh. 16 - 8.62 For Group 3A-7A elements in the third row of...Ch. 16 - Draw the Lewis structures for each of the...Ch. 16 - Prob. 93ECh. 16 - Prob. 94ECh. 16 -
8.66
Describe the molecule xenon trioxide, XeO3,...Ch. 16 -
8.67 There are many Lewis structures you could...Ch. 16 - Prob. 97ECh. 16 - Using Table 8.3, estimate H for each of the...Ch. 16 - Using Table 8.3, estimate H for the following...Ch. 16 - Prob. 100AECh. 16 - Prob. 101AECh. 16 - Prob. 102AECh. 16 - Prob. 103AECh. 16 - Consider the stable elements through lead (Z =...Ch. 16 -
17.80]Figure 7.4 shows the radial probability...Ch. 16 - (a) If the core electrons were totally effective...Ch. 16 - Prob. 107AECh. 16 - Prob. 108AECh. 16 - Prob. 109AECh. 16 - The following observations are made about two...Ch. 16 - Prob. 111AECh. 16 - Prob. 112AECh. 16 - Prob. 113AECh. 16 - Prob. 114AECh. 16 - Prob. 115AECh. 16 - Prob. 116IECh. 16 - Prob. 117IECh. 16 - Prob. 118IECh. 16 - Prob. 119IECh. 16 - Prob. 120IECh. 16 - The electron affinities. in kJ/mol, for the group...Ch. 16 -
7.99 Hydrogen is an unusual element because it...Ch. 16 - Prob. 123IECh. 16 - Prob. 124IECh. 16 - Which of the following is the expected product of...Ch. 16 - Elemental cesium reacts more violently with water...
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