CHEMISTRY-MOD.MASTERING (18W)
8th Edition
ISBN: 9780136780922
Author: Robinson
Publisher: PEARSON
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Chapter 4, Problem 4.147MP
Interpretation Introduction
Interpretation:
The mass percent of the two compounds in the mixture needs to be calculated.
Concept introduction:
The mass percent is defined as the mass of a component in 100 g of the mixture. The number of moles is related to mass and molar mass as follows:
Here, m is mass and M is molar mass.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
N2 (g) + 3H2 (g) = 2NH3 (g) AG⁰ = -34. KJ
Now suppose a reaction vessel is filled with 8.06 atm of nitrogen (N2) and 2.58 atm of ammonia (NH3) at 106. °C. Answer the following questions about this
system:
?
rise
Under these conditions, will the pressure of N2 tend to rise or fall?
☐ x10
fall
Is it possible to reverse this tendency by adding H₂?
In other words, if you said the pressure of N2 will tend to rise, can that be
changed to a tendency to fall by adding H₂? Similarly, if you said the
pressure of N2 will tend to fall, can that be changed to a tendency to rise
by adding H₂?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of H₂ needed to reverse it.
Round your answer to 2 significant digits.
yes
no
☐
atm
☑
5
00.
18
Ar
Chapter 4 Solutions
CHEMISTRY-MOD.MASTERING (18W)
Ch. 4 - Prob. 4.1PCh. 4 - Prob. 4.2ACh. 4 - How many moles of solute are present in 125 mLof...Ch. 4 - Prob. 4.4ACh. 4 - Prob. 4.5PCh. 4 - APPLY 4.7 Sulfuric acid is normally purchased at a...Ch. 4 - Prob. 4.7PCh. 4 - Conceptual APPLY 4.9 Three different substances,...Ch. 4 - Write ne ionic equations for the following...Ch. 4 - Prob. 4.10A
Ch. 4 - Will a precipitation reaction occur when aqueous...Ch. 4 - APPLY 4.13 How might you use a precipitation...Ch. 4 - Conceptual PRACTICE 4.14 An aqueous solution...Ch. 4 - Conceptual APPLY 4.15 A solution containing the...Ch. 4 - Name the acids HI and HBrO2 .Ch. 4 - APPLY 4.17 Give likely chemical formulas...Ch. 4 - PRACTICE 4.18 Write a balanced ionic equation and...Ch. 4 - Milk of magnesia (active ingredient: magnesium...Ch. 4 - Prob. 4.19PCh. 4 - Prob. 4.20ACh. 4 - Prob. 4.21PCh. 4 - Assume that the buret contains H+ ions, the flask...Ch. 4 - PRACTICE 4.24 Assign an oxidation number to each...Ch. 4 - APPLY 4.25 Chlorine can have several different...Ch. 4 - Identify the oxidizing agent and reducing agent in...Ch. 4 - APPLY 4.27 Police often use a Breathalyzer test to...Ch. 4 - PRACTICE 4.28 Predict whether the following...Ch. 4 - Use the following reactions to arrange the...Ch. 4 - Prob. 4.29PCh. 4 - Prob. 4.30ACh. 4 - A viramin-fortified brand of a sports...Ch. 4 - The nutritional label on Power ade specifies that...Ch. 4 - Prob. 4.33PCh. 4 - One way to analyze a sports drink for the...Ch. 4 - To measure the concentration of chloride ions ina...Ch. 4 - The flavor of the first batch of Gatorade was...Ch. 4 - Prob. 4.37CPCh. 4 - Prob. 4.38CPCh. 4 - Assume that an aqueous solution Of a cation,...Ch. 4 - The following pictures represent aqueous solutions...Ch. 4 - Prob. 4.41CPCh. 4 - The concentration of an aqueous solution of NaOCl...Ch. 4 - Assume that the electrical conductivity of a...Ch. 4 - Based on the positions in the periodic table,...Ch. 4 - The following two redox reactions occur between...Ch. 4 - Prob. 4.46SPCh. 4 - How many grams of solute would you use to prepare...Ch. 4 - How many milliliters of a 0.45 M BaCl2 solution...Ch. 4 - How many milliliters of a 0.350 M KOH solution...Ch. 4 - The sterile saline solution used to rinse contact...Ch. 4 - Prob. 4.51SPCh. 4 - Copper reacts with dilute nitric acid according to...Ch. 4 - Prob. 4.53SPCh. 4 - How many grams of solute would you use to prepare...Ch. 4 - Prob. 4.55SPCh. 4 - How would you prepare 250 mL of a 0.100 M solution...Ch. 4 - Pennies minted after 1982 are mostly zinc (97.5%)...Ch. 4 - A bottle of 12.0 M hydrochloric acid has only 35.7...Ch. 4 - What is the volume of the solution that would...Ch. 4 - How would you prepare 250 mL of a 0.100 M solution...Ch. 4 - Prob. 4.61SPCh. 4 - The following aqueous solutions were tested with a...Ch. 4 - Prob. 4.63SPCh. 4 - Individual solutions of Ba(OH)2 and H2SO4 both...Ch. 4 - A solution of HCl in water conducts electricity,...Ch. 4 - Classify each of the following substances as a...Ch. 4 - Is it possible for a molecular substance to be a...Ch. 4 - What is the total molar concentration of ions in...Ch. 4 - What is the total molar concentration of ions in...Ch. 4 - Ringer’s solution, used in the treatment of burns...Ch. 4 - What is the molarity of each ion in a solution...Ch. 4 - Prob. 4.72SPCh. 4 - Prob. 4.73SPCh. 4 - Write net ionic equations for the reactions listed...Ch. 4 - Write net ionic equations for the reactions listed...Ch. 4 - Which of the following substances are likely to be...Ch. 4 - Which of the following substances are likely to be...Ch. 4 - Predict whether a precipitation reaction will...Ch. 4 - Predict whether a precipitation reaction will...Ch. 4 - hich of the following solutions will not form a...Ch. 4 - Which of the following solutions will not form a...Ch. 4 - How would you prepare the following substances by...Ch. 4 - How would you prepare the following substances by...Ch. 4 - What are the mass and the identity of the...Ch. 4 - What are the mass and the identity of the...Ch. 4 - Assume that you have an aqueous mixture of NaNO3...Ch. 4 - Assume that you have an aqueous mixture of BaCl2...Ch. 4 - Assume that you have an aqueous solution of an...Ch. 4 - Assume that you have an aqueous solution of an...Ch. 4 - How could you use a precipitation reaction to...Ch. 4 - How could you u a precipitation reaction to...Ch. 4 - The following three solutions are mixed: 100.0 mL...Ch. 4 - A 250.0 g sample of a white solid is known to be a...Ch. 4 - Assume that you are given a solution of an unknown...Ch. 4 - Why do we use a double arrow () to show the...Ch. 4 - Write balanced ionic equations for the following...Ch. 4 - Write balanced ionic equations for the following...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 - A flask containing 450 mL of 0.500 M HBr was...Ch. 4 - The odor of skunks is caused by chemical compounds...Ch. 4 - Prob. 4.102SPCh. 4 - Prob. 4.103SPCh. 4 - How many milliliters of 1.00 M KOH must be added...Ch. 4 - How many milliliters of 2.00 M HCl must be added...Ch. 4 - If the following solutions are mixed, is the...Ch. 4 - If the following solutions are mixed, is the...Ch. 4 - Prob. 4.108SPCh. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Nitrogen can have several different oxidation...Ch. 4 - Prob. 4.113SPCh. 4 - Prob. 4.114SPCh. 4 - Where in the periodic table are the most easily...Ch. 4 - In each of the following instances, tell whether...Ch. 4 - Tell for each of the following substances whether...Ch. 4 - Which element is oxidized and which is reduced in...Ch. 4 - Which element is oxidized and which is reduced in...Ch. 4 - Use the activity series of metals (Table 4.5) to...Ch. 4 - Neither strontium (Sr) nor antimony (Sb) is shown...Ch. 4 - (a) Use the following reactions to arrange the...Ch. 4 - Prob. 4.123SPCh. 4 - Iodine, I2 , reacts with aqueous thiosulfate ion...Ch. 4 - How many milliliters of 0.250MNa2S2O3 solution is...Ch. 4 - Dichromate ion, Cr2O72 reacts with aqueous...Ch. 4 - A volume of 18.72 mL of 0.1500MK2Cr2O7 solution...Ch. 4 - What is the molar concentration of As(III) in a...Ch. 4 - Standardized solutions of KBrO3 are frequently...Ch. 4 - The metal content of iron in ores can be...Ch. 4 - Prob. 4.131SPCh. 4 - Alcohol levels in blood can he determined by a...Ch. 4 - Calcium levels in blood can be determined by...Ch. 4 - Assume that you have 1.00 g of a mixture of...Ch. 4 - A compound with the formula XOCl2 , reacts with...Ch. 4 - Prob. 4.136MPCh. 4 - Some metals occur naturally in their elemental...Ch. 4 - A sample weighing 14.98 g and containing a small...Ch. 4 - The solubility of an ionic compound can be...Ch. 4 - Prob. 4.140MPCh. 4 - Prob. 4.141MPCh. 4 - Prob. 4.142MPCh. 4 - A sample of metal (M) reacted with both steam and...Ch. 4 - Prob. 4.144MPCh. 4 - Prob. 4.145MPCh. 4 - Iron content in ores can be determined by a redox...Ch. 4 - Prob. 4.147MPCh. 4 - Salicylic acid, used in the manufacture of...Ch. 4 - Compound X contains only the elements C, H, O, and...Ch. 4 - Prob. 4.150MPCh. 4 - Element M is prepared industrially by a two-step...Ch. 4 - Prob. 4.152MPCh. 4 - Four solutions are prepared and mixed in the...Ch. 4 - To 100.0 mL of a solution that contains 0.120MCr(...Ch. 4 - Sodium nitrite, NaNO2 , is frequently added to...Ch. 4 - Brass is an approximately 4:1 alloy of copper and...Ch. 4 - Prob. 4.157MPCh. 4 - Prob. 4.158MP
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