Chemistry: Structure and Properties
1st Edition
ISBN: 9780321834683
Author: Nivaldo J. Tro
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 37E
You mix a 25.0 mL sample of a 1.20 M potassium chloride solution with 15.0 mL of a 0.900 M barium nitrate solution, and this precipitation reaction occurs:
You collect and dry the solid BaCl2and find it has a mass of 2.45 g. Determine the limiting reactant, the theoretical yield, and the percent yield.
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5. A solution of sucrose is fermented in a vessel until the evolution of CO2 ceases. Then, the
product solution is analyzed and found to contain, 45% ethanol; 5% acetic acid; and 15%
glycerin by weight.
If the original charge is 500 kg, evaluate;
e. The ratio of sucrose to water in the original charge (wt/wt).
f. Moles of CO2 evolved.
g. Maximum possible amount of ethanol that could be formed.
h. Conversion efficiency.
i. Per cent excess of excess reactant.
Reactions:
Inversion reaction: C12H22O11 + H2O →2C6H12O6
Fermentation reaction: C6H12O6 →→2C2H5OH + 2CO2
Formation of acetic acid and glycerin: C6H12O6 + C2H5OH + H₂O→ CH3COOH + 2C3H8O3
Show work. don't give Ai generated solution. How many carbons and hydrogens are in the structure?
13. (11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the
molecule depicted below.
Bond B
2°C. +2°C. cleavage
Bond A
•CH3 + 26.← Cleavage
2°C. +
Bond C
+3°C•
CH3 2C
Cleavage
E
2°C. 26.
weakest bond
Intact molecule
Strongest 3°C 20.
Gund
Largest
argest
a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in
appropriate boxes.
C
Weakest
bond
A
Produces
Most
Bond
Strongest
Bond
Strongest Gund
produces least stable
radicals
Weakest
Stable radical
b. (4pts) Consider the relative stability of all cleavage products that form when bonds A,
B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B,
and C are all carbon radicals.
i. Which ONE cleavage product is the most stable? A condensed or bond line
representation is fine.
13°C. formed in
bound C
cleavage
ii. Which ONE cleavage product is the least stable? A condensed or bond line
representation is fine.
• CH3
methyl radical
Formed in Gund A Cleavage
c.…
Chapter 9 Solutions
Chemistry: Structure and Properties
Ch. 9 - Prob. 1SAQCh. 9 - What mass (in grams) of Mg(NO3)2 is present in 145...Ch. 9 - Prob. 3SAQCh. 9 - Potassium iodide reacts with lead(ll) nitrate in...Ch. 9 - Which solution forms a precipitate when mixed with...Ch. 9 - What is the net ionic equation for the reaction...Ch. 9 - What is the net ionic equation for the reaction...Ch. 9 - What is the net ionic equation for the reaction...Ch. 9 - What is the oxidation state of carbon in CO32-? +3...Ch. 9 - Prob. 10SAQ
Ch. 9 - Prob. 11SAQCh. 9 - What is an aqueous solution? What is the...Ch. 9 - What is molarity? How is it useful?Ch. 9 - Explain how a strong electrolyte, a weak...Ch. 9 - What is an acid? Explain the difference between a...Ch. 9 - What does it mean for a compound to be soluble?...Ch. 9 - What are the solubility rules? How are they...Ch. 9 - Which cations and anions form compounds that are...Ch. 9 - What is a precipitation reaction? Give an example.Ch. 9 - How can you predict whether a precipitation...Ch. 9 - Explain how a molecular equation, a complete ionic...Ch. 9 - Prob. 11ECh. 9 - Prob. 12ECh. 9 - Prob. 13ECh. 9 - Explain the principles behind an acid-base...Ch. 9 - Prob. 15ECh. 9 - Which reactant types give rise to gas-evolution...Ch. 9 - Prob. 17ECh. 9 - What are oxidation states? How can oxidation...Ch. 9 - What happens to a substance when it becomes...Ch. 9 - In a redox reaction, which reactant is the...Ch. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - What is the molarity of NO3- in each solution?...Ch. 9 - What is the molarity of Cl- in each solution?...Ch. 9 - Prob. 25ECh. 9 - Prob. 26ECh. 9 - A laboratory procedure calls for making 400.0 mL...Ch. 9 - Prob. 28ECh. 9 - If 123 mL of a 1.1 M glucose solution is diluted...Ch. 9 - If 3.5 L of a 4.8 M SrCl2 solution is diluted to...Ch. 9 - To what volume should you dilute 50.0 mL of a 12 M...Ch. 9 - Prob. 32ECh. 9 - Consider the precipitation reaction:...Ch. 9 - Consider the reaction:...Ch. 9 - What is the minimum amount of 6.0 M H2SO4...Ch. 9 - What molarity of ZnCl2forms when 25.0 g of zinc...Ch. 9 - You mix a 25.0 mL sample of a 1.20 M potassium...Ch. 9 - Prob. 38ECh. 9 - For each compound (all water soluble), would you...Ch. 9 - Classify each compound as a strong electrolyte or...Ch. 9 - Determine whether each compound is soluble or...Ch. 9 - Prob. 42ECh. 9 - Prob. 43ECh. 9 - Complete and balance each equation. If no reaction...Ch. 9 - Write a molecular equation for the precipitation...Ch. 9 - Write a molecular equation for the precipitation...Ch. 9 - Write balanced complete ionic and net ionic...Ch. 9 - Write balanced complete ionic and net ionic...Ch. 9 - Mercury ions (Hg22+) can be removed from solution...Ch. 9 - Lead ions can be removed from solution by...Ch. 9 - Name each acid. Hl(aq) HNO3(aq) H2CO3(aq)Ch. 9 - Name each acid HCI(aq) HClO2(aq) H2SO4(aq)Ch. 9 - Provide the formula for each acid hydrofluoric...Ch. 9 - Provide the formula for each acid phosphoric acid...Ch. 9 - Write balanced molecular and net ionic equations...Ch. 9 - Write balanced molecular and net ionic equations...Ch. 9 - Complete and balance each acid-base equation...Ch. 9 - Complete and balance each acid-base equation...Ch. 9 - A 25.00-mL sample of an unknown HClO4solution...Ch. 9 - A 30.00-mL sample of an unknown H3PO4 solution is...Ch. 9 - Complete and balance each gas-evolution equation:...Ch. 9 - Prob. 62ECh. 9 - Write a balanced equation for the reaction between...Ch. 9 - Prob. 64ECh. 9 - Assign oxidation states to each atom in each...Ch. 9 - Prob. 66ECh. 9 - Prob. 67ECh. 9 - Prob. 68ECh. 9 - Determine whether or not each reaction is a redox...Ch. 9 - Determine whether or not each reaction is a redox...Ch. 9 - Prob. 71ECh. 9 - Prob. 72ECh. 9 - People often use sodium bicarbonate as an antacid...Ch. 9 - Toilet bowl cleaners often contain hydrochloric...Ch. 9 - Prob. 75ECh. 9 - Prob. 76ECh. 9 - Predict the products and write a balanced...Ch. 9 - Predict the products and write a balanced...Ch. 9 - Prob. 79ECh. 9 - Prob. 80ECh. 9 - Prob. 81ECh. 9 - A solution contains Cr3+ ion and Mg2+ ion. The...Ch. 9 - Find the volume of 0.110 M hydrochloric acid...Ch. 9 - Find the volume of 0.150 M sulfuric acid necessary...Ch. 9 - Treatment of gold metal with BrF3 and KF produces...Ch. 9 - We prepare a solution by mixing 0.10 L of 0.12 M...Ch. 9 - A solution contains Ag +and Hg2+ions. The addition...Ch. 9 - The water in lakes that have been acidified by...Ch. 9 - Recall from Section 8.5 that sodium carbonate is...Ch. 9 - A solution contains one or more of the following...Ch. 9 - A solution contains one or more of the following...Ch. 9 - Prob. 92ECh. 9 - Prob. 93ECh. 9 - Prob. 94ECh. 9 - Prob. 95E
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