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How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v) glucose solution?


A) 800.g
B) 0.0050 g
C) 8.0 g
D) 2.0 g
E) 200.g

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Polar solutes are soluble in ________ solvents.

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What is the concentration,in mass percent (m/m) ,of a solution prepared from 50.0 g NaCl and 150.0 g of water?


A) 0.250% (m/m)
B) 33.3% (m/m)
C) 40.0% (m/m)
D) 25.0% (m/m)
E) 3.00% (m/m)

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When MgO is added to water,the salt will be ________.

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Acetic acid can be classified as a ________.


A) gas
B) solid
C) weak electrolyte
D) strong electrolyte
E) ionic compound

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A substance that produces only a small number of ions in solution is known as a ________ electrolyte.

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The molarity of a solution of 5.0 g of KCl in 100.mL of solution is ________.


A) 0.038 M
B) 0.067 M
C) 0.67 M
D) 0.13 M
E) 1.3 M

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According to Henry's law,the solubility of a gas in a liquid ________.


A) decreases as the gas pressure above the liquid increases
B) increases as the gas pressure above the liquid increases
C) remains the same as the temperature increases
D) depends on the liquid polarity
E) depends on the liquid density

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A substance that completely ionizes in water is a ________ electrolyte.

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A ________ will pass through a filter but not a semipermeable membrane.


A) solid
B) precipitate
C) solution
D) suspension
E) colloid

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What is the new mass/volume percent (m/v) of a KOH solution that is prepared by diluting 110 mL of a 6.0% (m/v) KOH solution to 330 mL?


A) 2.0% (m/v)
B) 1.0% (m/v)
C) 6.0% (m/v)
D) 12% (m/v)
E) 18% (m/v)

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Indicate whether each of the following compounds dissolves in water to give ions,molecules,or both.

Premises
HF,a weak electrolyte
urea,a nonelectrolyte
,a weak electrolyte ,a weak electrolyte ,a weak electrolyte
OH,a nonelectrolyte OH,a nonelectrolyte OH,a nonelectrolyte
NaCl,a strong electrolyte
,a soluble salt ,a soluble salt
glucose,a nonelectrolyte
Responses
both
ions
molecules

Correct Answer

HF,a weak electrolyte
urea,a nonelectrolyte
,a weak electrolyte ,a weak electrolyte ,a weak electrolyte
OH,a nonelectrolyte OH,a nonelectrolyte OH,a nonelectrolyte
NaCl,a strong electrolyte
,a soluble salt ,a soluble salt
glucose,a nonelectrolyte

Which of the following molecules can form hydrogen bonds?


A) Which of the following molecules can form hydrogen bonds? A) B) NaH C) D) E) HI
B) NaH
C) Which of the following molecules can form hydrogen bonds? A) B) NaH C) D) E) HI
D) Which of the following molecules can form hydrogen bonds? A) B) NaH C) D) E) HI
E) HI

Correct Answer

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What is the molarity of a KCl solution made by diluting 75.0 mL of a 0.200 M solution to a final volume of 100.mL?


A) 0.267 M
B) 0.150 M
C) 0.200 M
D) 6.67 M
E) 0.100 M

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A substance that carries an electric current when dissolved in water is called a(n)________.

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When KCl dissolves in water ________.


A) the When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions are attracted to dissolved When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions
B) the When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions are attracted to the partial negative charge on the oxygen atom of the water molecule
C) the When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions are attracted to When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions on the KCl crystal
D) the When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions are attracted to the partial negative charge on the oxygen atom of the water molecule
E) the When KCl dissolves in water ________. A) the ions are attracted to dissolved ions B) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule C) the ions are attracted to ions on the KCl crystal D) the ions are attracted to the partial negative charge on the oxygen atom of the water molecule E) the ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule ions are attracted to the partial positive charge on the hydrogen atoms of the water molecule

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The number of moles of a compound dissolved in one liter of a solution is called the ________.

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An increase in the temperature of a solution usually ________.


A) increases the boiling point
B) increases the solubility of a gas in the solution
C) increases the solubility of a solid solute in the solution
D) decreases the solubility of a solid solute in the solution
E) decreases the solubility of a liquid solute in the solution

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Which solution is isotonic to a red blood cell?


A) water
B) 0.5% NaCl
C) 2% glucose
D) 0.9% NaCl
E) 10% glucose

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________ can pass through filters but cannot pass through semipermeable membranes.

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