General Organic

Chemistry

Quiz 8 :

Mixtures, Solution Concentrations, and Diffusion

Quiz 8 :

Mixtures, Solution Concentrations, and Diffusion

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An example of this type of mixture is red blood cells in whole blood.
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B

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If the semipermeable membrane only allows the passage of water, what process will to occur? img
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E

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A student adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 2.0 L.What is the final concentration of the solution?
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D

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Is the solution of MgCl2 in water an electrolyte?
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A researcher needs 800 mL of a 25 mM phosphate buffer.The stock solution of the buffer is 100 mM.How much stock solution should be used to make the 25 mM phosphate buffer?
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We can predict whether a solute dissolves in a solvent with the rule "like dissolves like." This rule means that
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A technician adds 0.250 L of 200 mM buffer stock solution to a volumetric flask and dilutes the stock to 1.0 L.What is the final concentration of the solution?
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Drinking water from a well is discovered to have an arsenic concentration of 3.4 × 10-4 g of arsenic per liter.Does this value exceed the permissible level of arsenic in drinking water of 10 ppb?
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Does gasoline, which is nonpolar, dissolve in water?
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The function of a kidney is similar to which part of the diagram below? img
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A patient is given 15 mL of a liquid pain reliever as a suspension containing 220 mg/5 mL of the pain reliever.How many milligrams of the pain reliever did the patient receive?
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How many moles of glucose are in 0.82 L of a 0.13 M glucose solution?
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Why do kidney stones form?
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Consider solutions A and B separated by a semipermeable membrane.Which diagram BEST illustrates what the volumes should look like after osmosis occurs? img
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A _______ has components that are evenly distributed throughout the mixture.
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Which of the following usually occurs when a molecule dissolves in water?
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A vial contains 5 mL of 1% aqueous lidocaine, a dental anesthetic.In this solution
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Which of the following is a heterogeneous mixture?
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Glucose in the blood is a
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A child is given 7.5 mL of a liquid pain reliever as a suspension containing 160 mg/5 mL of the pain reliever.How many milligrams of the pain reliever did the child receive?
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