5. Sodium benzoate is the conjugate base of benzoic acid and it is used as a...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
5. Sodium benzoate is the conjugate base of benzoic acid and it is used as a food preservative. How would you make a buffer solution based on this system to have a pH = 5.0? 6. What part of the titration curve of a weak acid corresponds to the buffer region? Explain. 7. Calcium carbonate is sparingly soluble in neutral water. Write out the equation for what is involved. Why doesn't an increase in the quantity of calcium carbonate increase its solubility? What units are solubilities measured in? 8. Consider the slightly soluble salt Pbl2. a) It is found that the solubility of PbI2 is 1.2 X 10-3 mole per liter at 298 °K. What is the Ksp for Pbl2? b) What is the solubility of PbI2 in a 1.0 x 10-2 M Pb(NO3)2 solution? (If you do not obtain a Ksp for part (a), assume that Ksp = 1.0 x 10-10.) c) What do you think will happen to the solubility of Pbl2 in part (a) if the temperature is increased? What data would you need, to be sure of your answer? 5. Sodium benzoate is the conjugate base of benzoic acid and it is used as a food preservative. How would you make a buffer solution based on this system to have a pH = 5.0? 6. What part of the titration curve of a weak acid corresponds to the buffer region? Explain. 7. Calcium carbonate is sparingly soluble in neutral water. Write out the equation for what is involved. Why doesn't an increase in the quantity of calcium carbonate increase its solubility? What units are solubilities measured in? 8. Consider the slightly soluble salt Pbl2. a) It is found that the solubility of PbI2 is 1.2 X 10-3 mole per liter at 298 °K. What is the Ksp for Pbl2? b) What is the solubility of PbI2 in a 1.0 x 10-2 M Pb(NO3)2 solution? (If you do not obtain a Ksp for part (a), assume that Ksp = 1.0 x 10-10.) c) What do you think will happen to the solubility of Pbl2 in part (a) if the temperature is increased? What data would you need, to be sure of your answer?
Expert Answer:
Answer rating: 100% (QA)
5 To make a buffer solution with a pH of 50 you would need to mix sodium benzoate and benzoic acid To do this you first need to calculate the concentr... View the full answer
Related Book For
Chemistry The Central Science
ISBN: 9780321910417
13th Edition
Authors: Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward, Matthew E. Stoltzfus
Posted Date:
Students also viewed these chemistry questions
-
Write out the equation for the target volume (in units) profit equation when the income tax rate is t.
-
What is true about UDP? it is used as a protocol at the network layer. it is used as the de facto protocol in the transport layer. it is a standard that is no more used in networking. it is mainly...
-
The conjugate base of diethyl malonate can serve as a nucleophile to attack a wide range of electrophiles. Identify the product that is formed when the conjugate base of diethyl malonate reacts with...
-
A politician claims that the mean salary for managers in his state is more than the national mean, $85,000. Assume the the population is normally distributed and the population standard deviation is...
-
Refer to the 2009 balance sheet for Palm in Appendix A. What is the par value per share of its common stock? Suggest a rationale for the amount of par value it assigned.
-
Determine the capacity of the production system shown in the following figure. To increase the output of the system, which work center capacity should be increased, and by how much? WC-7 17 units/hr...
-
Foxey Flowers had income before income tax of \(\$ 80,000\) and taxable income of \(\$ 70,000\) for 2007, the company's first year of operations. The income tax rate is \(40 \%\). 1. Make the entry...
-
Monica Sexton filed a petition for Chapter 13 reorganization. One of her creditors was Friedmans Jewelers. Her petition misclassified Friedmans claim as $ 800 of unsecured debt. Within days,...
-
According to Thomson et al (2014) what the two factor that influence competitive strategy?
-
At the end of the fiscal year, the Precision Computer Centre has a $21,620 balance in Accounts Receivable. Here is a current schedule of accounts receivable: Assignment Although Accu Pacs account is...
-
Splish Brothers Company reported net income of $370,000 for the current year. Depreciation recorded on buildings and equipment amounted to $78,000 for the year. Balances of the current asset and...
-
CoursHeroTranscribedText The following class will deadlocked by invoking method t(). Explain Why? class A{ private Semaphore sem; public A(){ sem= new Semaphore(0); } synchronized void t(){ try{ sem....
-
How do we examine the political platforms and policies that are put forward in the two major political parties?
-
At a specific RPM (revolutions per minute) for a diesel engine, a strong resonance at a frequency of 250Hz and wavelength of 2.4 m are observed in the exhaust pipe (pipe with constant cross section)...
-
What are the implications of technological advancements and automation on the future prospects of social mobility, particularly for low-skilled workers ?
-
1. What have been the economic conditions in the periphery? 2. What are the terms of trade, how have they deteriorated and what have been their effects for Latin America? 3. Present at least two...
-
Develop a script to store and maintain five athletes' information. The script will allow users to store the name and height of each athlete, and to find the height of an athlete. You must use the...
-
Discuss whether responsible human resources management should apply different standards for the home company and suppliers, for developed countries and developing countries, and for large companies...
-
Look up the diameter of a silicon atom, in . The latest semiconductor chips have fabricated lines as small as 22 nm. How many silicon atoms does this correspond to?
-
The distance from Grand Rapids, Michigan, to Detroit is listed in a road atlas as 153 miles. Describe some of the factors that contribute to the uncertainty in this number. To make the number more...
-
Give the molecular formula of a hydrocarbon containing six carbon atoms that is (a) A cyclic alkane (b) A cyclic alkene (c) A linear alkyne (d) An aromatic hydrocarbon.
-
Assume that an account has the following characteristics: Number of items in the account-300 Recorded amount- \(\$ 600,000\) Sample size-100 Required: a. If the sample mean is \(\$ 1,800\) and mean...
-
You desire to estimate the amount of the inventory of your client. Draper. Inc. You satisfied yourself earlier as to the inventory quantities. During the audit of the pricing and extension of the...
-
The following data for a substantive test using sampling are available: Population recorded amount- \(\$ 200,000\) Tolerable misstatement \(\$ 10,000\) Number of items in the population-200 Risk of...
Study smarter with the SolutionInn App