## Biology Chapter 3 Homework

Last Updated By Nerdy_Elf on 12/10/2012
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# Which of the following is a hydrophobic material?

 a)  Paper
 b)  Table salt
 c)  Wax
 d)  Sugar
 e)  Pasta
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• We can be sure that a mole of table sugar and a mole of vitamin C are equal in their
a)Mass in daltons
b)Mass in grams
c)Number of molecules
d)Number of atoms
e)Volume
c)Volume
• How many grams of acetic acid (C2H4O2) would you use to make 10 L of a 0.1 M aqueous solution of acetic acid? (Note: The atomic masses, in daltons, are approximately 12 for carbon, 1 for hydrogen, and 16 for oxygen.)

a)10.0g
b)0.1g
c)6.0g
d)60.0g
e)0.6g
d)0.6g
• Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?

a)4.0 M
b)10-10 M
c)10-4 M
d)104 M
e)4%
c)4%
• What is the hydroxide ion concentration of the lake described in question 7?

a)10-7 M
b)10-4 M
c)10-10 M
d)10-14 M
e)10 M
c)10 M
• Which of the following statements correctly defines a kilocalorie?
a)The amount of heat required to raise the temperature of 1 g of water by 1Â°F
b)The amount of heat required to raise the temperature of 1 g of water by 1Â°C
c)The amount of heat required to raise the temperature of 1 kg of water by 1Â°F
d)The amount of heat required to raise the temperature of 1 kg of water by 1Â°C
e)The amount of heat required to raise the temperature of 1,000 g of water by 1Â°F
d)The amount of heat required to raise the temperature of 1,000 g of water by 1Â°F
• The nutritional information on a cereal box shows that one serving of a dry cereal has 200 kilocalories. If one were to burn one serving of the cereal, the amount of heat given off would be sufficient to raise the temperature of 20 kg of water how many degrees Celsius?
a)0.2Â°C
b)1.0Â°C
c)2.0Â°C
d)10.0Â°C
e)20.0Â°C
d)20.0Â°C
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Biology Chapter 3 Homework
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Free Quiz Question From Biology Chapter 3 Homework
Question: Which of the following is a hydrophobic material?