Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Chapter 11, Problem 58E
In a significant experiment performed many years ago, 5.6977 g of cadmium iodide in 44.69 g of water raised the boiling point 0.181 °C. What does this suggest about the nature of a solution of CdI2?
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3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing
mechanism below, but make sure to draw the product of each proposed step (3 points).
CN
+ En
CN
3) Propagation of uncertainty. Every measurement has uncertainty. In this problem, we'll
evaluate the uncertainty in every step of a titration of potassium hydrogen phthalate (a
common acid used in titrations, abbreviated KHP, formula CsH5KO4) with NaOH of an
unknown concentration.
The calculation that ultimately needs to be carried out is:
concentration NaOH
1000 x mass KHP × purity KHP
molar mass KHP x volume NaOH
Measurements:
a) You use a balance to weigh 0.3992 g of KHP. The uncertainty is ±0.15 mg (0.00015
g).
b) You use a buret to slowly add NaOH to the KHP until it reaches the endpoint. It takes
18.73 mL of NaOH. The uncertainty of the burst is 0.03 mL..
c) The manufacturer states the purity of KHP is 100%±0.05%.
d) Even though we don't think much about them, molar masses have uncertainty as well.
The uncertainty comes from the distribution of isotopes, rather than random
measurement error. The uncertainty in the elements composing KHP are:
a. Carbon:
b. Hydrogen:
±0.0008…
Don't used hand raiting and don't used Ai solution
Chapter 11 Solutions
Chemistry Atoms First2e
Ch. 11 - How do solutions differ from compounds? From other...Ch. 11 - Which of the principal characteristics of...Ch. 11 - When KNO3 is dissolved in water, the resulting...Ch. 11 - Give an example of each of the following types of...Ch. 11 - Indicate the most important types of...Ch. 11 - Predict whether each of the following substances...Ch. 11 - Heat is released when some solutions form; heat is...Ch. 11 - Solutions of hydrogen in palladium may be formed...Ch. 11 - Explain why the ions Na+ and CI- are strongly...Ch. 11 - Explain why solutions of HBr in benzene (a...
Ch. 11 - Consider the solutions presented: (a) Which of the...Ch. 11 - Compare the processes that occur when methanol...Ch. 11 - What is the expected electrical conductivity of...Ch. 11 - Why are most solid ionic compounds electrically...Ch. 11 - Indicate the most important type of intermolecular...Ch. 11 - Suppose you are presented with a clear solution of...Ch. 11 - Supersaturated solutions of most solids in water...Ch. 11 - Suggest an explanation for the observations that...Ch. 11 - Calculate the percent by mass of KBr in a...Ch. 11 - Which of the following gases is expected to be...Ch. 11 - At 0 C and 1.00 atm, as much as 0.70 g of O2 can...Ch. 11 - Refer to Figure 11.10. (a) How did the...Ch. 11 - The Henrys law constant for CO2 is 3.4102 M/atm at...Ch. 11 - The Henrys law constant for O2 is 1.3103 M/ atm at...Ch. 11 - Assuming ideal solution behavior, how many liters...Ch. 11 - Which is are part of the macroscopic domain of...Ch. 11 - What is the microscopic explanation for the...Ch. 11 - Sketch a qualitative graph of the pressure versus...Ch. 11 - A solution of potassium nitrate, an electrolyte,...Ch. 11 - What are the mole fractions of H3PO4 and water in...Ch. 11 - What are the mole fractions of HNO3 and water in a...Ch. 11 - Calculate the mole fraction of each solute and...Ch. 11 - Calculate the mole fraction of each solute and...Ch. 11 - Calculate the mole fractions of methanol, CH3OH;...Ch. 11 - What is the difference between a 1 M solution and...Ch. 11 - What is the molality of phosphoric acid, H3PO4, in...Ch. 11 - What is the molality of nitric acid in a...Ch. 11 - Calculate the molality of each of the following...Ch. 11 - Calculate the molality of each of the following...Ch. 11 - The concentration of glucose, C6H12O6, in normal...Ch. 11 - A 13.0% solution of K2CO3 by mass has a density of...Ch. 11 - Why does 1 mol of sodium chloride depress the...Ch. 11 - Assuming ideal solution behavior what is the...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - Assuming ideal solution behavior, what is osmotic...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - A sample of an organic compound (a nonelectrolyte)...Ch. 11 - A 1.0 m solution of HCI in benzene has a freezing...Ch. 11 - A solution contains 5.00 g of urea, CO(NH2)2 , a...Ch. 11 - A 12.O-g sample of a nonelectrolyte is dissolved...Ch. 11 - Arrange the following solutions in order by their...Ch. 11 - Calculate the boiling point elevation of 0.100 kg...Ch. 11 - How could you prepare a 3.08m aqueous solution of...Ch. 11 - A sample of sulfur weighing 0.210 g was dissolved...Ch. 11 - In a significant experiment performed many years...Ch. 11 - Lysozyme is an enzyme that cleaves cell walls. A...Ch. 11 - The osmotic pressure of a solution containing 7.0...Ch. 11 - The osmotic pressure of human blood is 7.6 atm at...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - Assuming ideal solution behavior, what is the...Ch. 11 - The sugar fructose contains 40.0% C, 6.7% H, and...Ch. 11 - The vapor pressure of methanol, CH3OH, is 94 torr...Ch. 11 - The triple point of air-free water is defined as...Ch. 11 - Meat can be classified as fresh (not frozen) even...Ch. 11 - An organic compound has a composition of 93.46% C...Ch. 11 - A sample of HgCI2 weighing 9.41 g is dissolved in...Ch. 11 - A salt is known to be an alkali metal fluoride. A...Ch. 11 - Identify the dispersed phase and the dispersion...Ch. 11 - Distinguish between dispersion methods and...Ch. 11 - How do colloids differ from solutions with regard...Ch. 11 - Explain the cleansing action of soap.Ch. 11 - How can it be demonstrated that colloidal...
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY