EP MICROBIOLOGY:W/DISEASES BY..-MOD.ACC
5th Edition
ISBN: 9780134607894
Author: BAUMAN
Publisher: PEARSON CO
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Textbook Question
Chapter 2, Problem 8MC
Which of the following statements about a carbonated cola beverage with a pH of 2.9 is true?
- a. It has a relatively high concentration of hydrogen ions.
- b. It has a relatively low concentration of hydrogen ions.
- c. It has equal amounts of hydroxyl and hydrogen ions.
- d. Cola is a buffered solution.
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Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Acids dissociate in water to give hydrogen ions and an anion. b. Bases are defined as hydrogen ion donors. c. As a solution’s pH rises, it becomes more acidic. d. A buffer is a system of chemicals that resists a change in pH. e. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.
Which of the following is FALSE when the concentration of the buffer solution was increased?
a. The buffer will be effective in resisting pH changes.
b. There will be more weak acid components that can neutralize the added base.
c. The solution will have a higher buffer capacity.
d. There will be more weak base components that can neutralize the added base.
When some of the sugar added to iced tea remains
undissolved on the bottom of the glass, the solution can be
described as
A. dilute
В. polar
C. nonpolar
D. saturated
E. unsaturated
Chapter 2 Solutions
EP MICROBIOLOGY:W/DISEASES BY..-MOD.ACC
Ch. 2 - Electrons zip around the nucleus at about 5...Ch. 2 - Chlorine and potassium atoms form ionic bonds,...Ch. 2 - Why are decomposition reactions exothermic, that...Ch. 2 - Why does the neutralization of an acid by a base...Ch. 2 - Raw Oysters and Antacids: A Deadly Mix? The highly...Ch. 2 - Why do the cell membranes of microbes living in...Ch. 2 - Prob. 1MCCh. 2 - The atomic mass of an atom most closely...Ch. 2 - One isotope of iodine differs from another in...Ch. 2 - Prob. 4MC
Ch. 2 - Which of the following terms most correctly...Ch. 2 - In water, cations and anions of salts dissociate...Ch. 2 - Prob. 7MCCh. 2 - Which of the following statements about a...Ch. 2 - Proteins are polymers of ___________. a. amino...Ch. 2 - Which of the following are hydrophobic organic...Ch. 2 - Fill in the Blanks 1. The outermost electron shell...Ch. 2 - Fill in the Blanks 2. The type of chemical bond...Ch. 2 - Prob. 3FIBCh. 2 - Prob. 4FIBCh. 2 - Fill in the Blanks 5. Groups of atoms such as NH2...Ch. 2 - Fill in the Blanks 6. The reverse of dehydration...Ch. 2 - Fill in the Blanks 7. Reactions that release...Ch. 2 - Fill in the Blanks 8. All chemical reactions begin...Ch. 2 - Fill in the Blanks 9. The ____________ scale is a...Ch. 2 - Prob. 10FIBCh. 2 - Label a portion of the molecule below; label two...Ch. 2 - Shown is the amino acid tryptophan. Put the letter...Ch. 2 - List three main types of chemical bonds, and give...Ch. 2 - Name five properties of water that are vital to...Ch. 2 - Prob. 3SACh. 2 - What is the difference between atomic oxygen and...Ch. 2 - Explain how the polarity of water molecules makes...Ch. 2 - Prob. 1CTCh. 2 - Prob. 2CTCh. 2 - Two freshmen disagree about an aspect of...Ch. 2 - When an egg white is heated, it changes from...Ch. 2 - Prob. 5CTCh. 2 - The poison glands of many bees and wasps contain...Ch. 2 - Prob. 7CTCh. 2 - Prob. 8CTCh. 2 - The deadly poison hydrogen cyanide has the...Ch. 2 - Triple covalent bonds are stronger and more...Ch. 2 - How can hydrogen bonding between water molecules...Ch. 2 - How can a single molecule of magnesium hydroxide...Ch. 2 - Prob. 13CTCh. 2 - Prob. 14CTCh. 2 - A textbook states that only five nucleotide bases...Ch. 2 - Using the following terms, fill in the following...
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- Define the following terms: a. solvation sphere b. amphipathic c. micelle d. hydrophobic effect e. clathratearrow_forwardImagine that you have a jar of syrup A and a plastic Ziploc bag of syrup B. You poke tiny holes in the bag and put it inside the jar. Where will water move? Hint: remember that water moves from the more watery area (high concentration of water) to the less watery area (low concentration of water). Water moves from the bag (B) to the jar (A) Water moves from the jar (A) to the bag (B)arrow_forwardThe acidity of our skin (pH~4.5-5.5) helps maintaining the skin's cells and prevents the growth of some microbes. Therefore, its always recommended to use gentle skin soap to maintain the acidity of the skin, these products contain mainly: Select one: a. Strong acid to maintain the pH of the skin O b. Weak acid to significantly decrease the pH of the skin O c. Weak base to maintain the pH close to 7 O d. Weak base to increase the pH of the skin O e. Weak acid to maintain the pH of the skin In which of the following do you expect to have highest emergent properties? Select one: O a. Tissue O b. Community Oc. Cell O d. population O e. Organismsarrow_forward
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