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Using a kidney machine to remove waste products from the blood is known as ________.


A) osmosis
B) osmolysis
C) autolysis
D) hemolysis
E) hemodialysis

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Which of the following also occurs in this system?


A) Water flows equally in both directions.
B) There is a net flow of water from the 4% starch solution into the 10% starch solution.
C) There is a net flow of water from the 10% starch solution into the 4% starch solution.
D) Water does not cross the membrane at all.
E) Starch moves out of the 10% starch solution into the 4% starch solution.

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What volume of 0.10 M NaOH can be prepared from 250.mL of 0.30 M NaOH?


A) 0.075 L
B) 0.25 L
C) 0.75 L
D) 0.083 L
E) 750 L

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How many equivalents are in 0.036 mole of Ca2+?

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The compound KOH is ________.


A) soluble,because all compounds containing The compound KOH is ________. A) soluble,because all compounds containing   are soluble B) insoluble,because all compounds containing   are in soluble C) soluble,because all compounds containing   are soluble D) insoluble,because all compounds containing   are insoluble E) insoluble,because KOH is insoluble are soluble
B) insoluble,because all compounds containing The compound KOH is ________. A) soluble,because all compounds containing   are soluble B) insoluble,because all compounds containing   are in soluble C) soluble,because all compounds containing   are soluble D) insoluble,because all compounds containing   are insoluble E) insoluble,because KOH is insoluble are in soluble
C) soluble,because all compounds containing The compound KOH is ________. A) soluble,because all compounds containing   are soluble B) insoluble,because all compounds containing   are in soluble C) soluble,because all compounds containing   are soluble D) insoluble,because all compounds containing   are insoluble E) insoluble,because KOH is insoluble are soluble
D) insoluble,because all compounds containing The compound KOH is ________. A) soluble,because all compounds containing   are soluble B) insoluble,because all compounds containing   are in soluble C) soluble,because all compounds containing   are soluble D) insoluble,because all compounds containing   are insoluble E) insoluble,because KOH is insoluble are insoluble
E) insoluble,because KOH is insoluble

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The solubility of KI is 50 g in 100 g of H2O at 20 °C.If 110 grams of KI are added to 200 grams of H2O,________.


A) all of the KI will dissolve
B) the solution will freeze
C) the solution will start boiling
D) a saturated solution will form
E) the solution will be unsaturated

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During the process of diluting a solution to a lower concentration,________.


A) the amount of solute does not change
B) the amount of solvent does not change
C) there is more solute in the concentrated solution
D) the volume of the solution does not change
E) water is removed from the concentrated solution

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If 450.mL of 6.0 M KBr solution is diluted to 900.mL,the concentration of the KBr solution is _____M.

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A solution which has 12 g of solute dissolved in 200.mL of solution has a m/v concentration of ________.

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Compare the osmotic pressure of these solutions to the osmotic pressure of red blood cells.

Premises
0.9% NaCl
5% NaCl
water
0.5% NaCl
0.9% glucose
7% glucose
5% glucose
Responses
hypertonic
hypotonic
isotonic

Correct Answer

0.9% NaCl
5% NaCl
water
0.5% NaCl
0.9% glucose
7% glucose
5% glucose

200.mL of a 12.0% (m/v)NaCl solution is diluted to 600.mL.The new concentration is ________ %.

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What volume of a 1.5 M KOH solution is needed to provide 3.0 moles of KOH?


A) 3.0 L
B) 0.50 L
C) 2.0 L
D) 4.5 L
E) 0.22 L

Correct Answer

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What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH?


A) 18 mL
B) 0.13 mL
C) 13 mL
D) 120 mL
E) 8.0 × What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH? A) 18 mL B) 0.13 mL C) 13 mL D) 120 mL E) 8.0 ×   mL mL

Correct Answer

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Rubbing alcohol is 70.% (m/v) isopropyl alcohol by volume.How many mL of isopropyl alcohol are in a 1 pint (473 mL) container?


A) 70.mL
B) 0.15 mL
C) 680 mL
D) 470 mL
E) 330 mL

Correct Answer

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How many milliliters of a 25% (m/v) NaOH solution would contain 75 g of NaOH?


A) 25 mL
B) 75 mL
C) 33 mL
D) 19 mL
E) 3.0 × How many milliliters of a 25% (m/v) NaOH solution would contain 75 g of NaOH? A) 25 mL B) 75 mL C) 33 mL D) 19 mL E) 3.0 ×   mL mL

Correct Answer

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A hydrogen bond is ________.


A) an attractive force between molecules where partially positive hydrogen atoms are attracted to partially negative atoms of F,O,or N
B) a covalent bond between H and O
C) an ionic bond between H and another atom
D) a bond that is stronger than a covalent bond
E) the polar O-H bond in water

Correct Answer

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A red blood cell will undergo crenation in ________.


A) water
B) 0.5% NaCl
C) 3% glucose
D) 5% glucose
E) 7% NaCl

Correct Answer

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Match the type of mixture with the appropriate characteristics.

Premises
a mixture whose particles can be separated by filters
a mixture whose particles settle on standing
a homogeneous mixture in which suspended particles cannot pass through a semipermeable membrane
a mixture of sodium chloride in water
a mixture whose particles cannot be separated by filters or semipermeable membranes
Responses
solution
colloid
suspension

Correct Answer

a mixture whose particles can be separated by filters
a mixture whose particles settle on standing
a homogeneous mixture in which suspended particles cannot pass through a semipermeable membrane
a mixture of sodium chloride in water
a mixture whose particles cannot be separated by filters or semipermeable membranes

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