Chapter 13 Multiple Choice Quiz 1

Please answer all questions


1	What is the most likely temperature of the water at the bottom of Lake Superior in the winter?
		A)	0 °C
		B)	4°C
		C)	10°C
		D)	The temperature is fairly variable.


2	Water solutions of ionic substances that conduct electricity are called
		A)	electrical solutions
		B)	polar solutions
		C)	electrolytes
		D)	indicators


3	Which of the following are properties of basic solutions?
		A)	They turn the dye litmus red.
		B)	They taste sour.
		C)	They feel slippery.
		D)	They react with active metals to produce hydrogen gas.


4	Which of the following are properties of acidic solutions?
		A)	They turn the dye litmus red.
		B)	They taste sour.
		C)	They react with active metals to produce hydrogen gas.
		D)	All of these are true.


5	A bottle of whiskey contains 40% alcohol by volume. This means that the whiskey contains 40 mL of alcohol
		A)	in every 100 mL of whiskey
		B)	mixed with 100 mL of water.
		C)	mixed with 60 mL of whiskey
		D)	in every 140 mL of whiskey.


6	The water hardness in an area is reported as 700 ppm total dissolved solids. This is the same concentration as
		A)	0.007%
		B)	0.07%
		C)	0.7%
		D)	7%


7	If the force of attraction between the ions in a solid is very strong, you would expect the solid to have
		A)	low solubility in water.
		B)	high solubility in water.
		C)	low solubility in a non-polar solvent.
		D)	high solubility in a non-polar solvent.


8	According to the modern definition, NH₃ is
		A)	an acid because it contains hydrogen.
		B)	a base because it can accept H⁺ ions from water.
		C)	an acid because it raises the H⁺ ion concentration.
		D)	a base because it lowers the pH.


9	A solution with a pH of 2
		A)	is twice as acidic as one with a pH of 1.
		B)	is half as acidic as a solution with a pH of 1.
		C)	is ten times as acidic as a solution with a pH of 1.
		D)	is one tenth as acidic as a solution with a pH of 1.


10	Which of the following solutions is likely to have a pH less than 7?
		A)	sodium chloride
		B)	ammonia
		C)	carbonic acid
		D)	pure water

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