The Henry's Law constant (k) for carbon monoxide in water at 25°C is 9.71 × 10−4 mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

A) 3.53 × 10 −4 g B) 2.67 × 10 −3 g C) 9.89 × 10 −3 g D) 7.48 × 10 −2 g E) None of these choices are correct. A) 3.53 × 10 −4 g B) 2.67 × 10 −3 g C) 9.89 × 10 −3 g D) 7.48 × 10 −2 g E) None of these choices are correct.

Copper(II) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750.0 mL of a 1.25 M solution?

A) 134 g B) 209 g C) 372 g D) 938 g E) > 1 kg A) 134 g B) 209 g C) 372 g D) 938 g E) > 1 kg

Exam 13: The Properties of Mixtures: Solutions and Colloids

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Procaine hydrochloride (ℳ = 272.77 g/mol) is used as a local anesthetic. Calculate the molarity of a 4.666 m solution which has a density of 1.1066 g/mL.

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Question 61

What is the molality of a solution prepared by dissolving 86.9 g of diethyl ether, C₄H₁₀O, in 425 g of benzene, C₆H₆?

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Question 62

The shape of a protein molecule is determined completely by

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Question 63

The Henry's Law constant (k) for carbon monoxide in water at 25°C is 9.71 × 10⁻⁴ mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

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Question 64

Cadmium bromide is used in photography and lithography. Calculate the molality of a solution prepared by dissolving 45.38 g of CdBr₂ in 375.0 g of water.

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Question 65

A solution of ethanol (C₂H₆O) in water is sometimes used as a disinfectant. 1.00 L of this solution contains 553 g of ethanol and 335 g of water. What is the mole fraction of ethanol in this solution?

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Question 66

Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol (ℳ = 46.07 g/mol). P°_ethanol = 50.0 torr at 25°C.

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Question 67

Copper(II) bromide is used as a wood preservative. What mass of CuBr₂ is needed to prepare 750.0 mL of a 1.25 M solution?

(Multiple Choice)

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Question 68

Determine the freezing point of a solution that contains 0.31 mol of sucrose in 175 g of water. K_f = 1.86°C/m

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Question 69

The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of the non-volatile solute in the solution?

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Question 70

A solution of sucrose (sugar) in water is in equilibrium with solid sucrose. If more solid sucrose is now added, with stirring,

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Question 71

In general, water is a good solvent for both polar and nonpolar compounds.

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Question 72

The most abundant molecules in the cell membranes of most species are

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Question 73

The solubility of gases in water increases with increase in the pressure of the gas.

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Question 74

Colloidal particles may be solids, liquids, or gases.

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Question 75

Benzaldehyde ( ℳ = 106.1 g/mol), also known as oil of almonds, is used in the manufacture of dyes and perfumes and in flavorings. What would be the freezing point of a solution prepared by dissolving 75.00 g of benzaldehyde in 850.0 g of ethanol?K_f = 1.99°C/m, freezing point of pure ethanol = -117.3°C.

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Question 76

From the following list of aqueous solutions and water, select the one with the highest boiling point.

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Question 77

Heats of solution may be either positive or negative.

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Question 78

Calculate the molarity of a solution prepared by diluting 1.85 L of 6.5 M KOH to 11.0 L.

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Question 79

The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution?

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Question 80

Showing 61 - 80 of 96

Exam 13: The Properties of Mixtures: Solutions and Colloids

Procaine hydrochloride (ℳ = 272.77 g/mol) is used as a local anesthetic. Calculate the molarity of a 4.666 m solution which has a density of 1.1066 g/mL.

What is the molality of a solution prepared by dissolving 86.9 g of diethyl ether, C4H10O, in 425 g of benzene, C6H6?

The shape of a protein molecule is determined completely by

The Henry's Law constant (k) for carbon monoxide in water at 25°C is 9.71 × 10−4 mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

Cadmium bromide is used in photography and lithography. Calculate the molality of a solution prepared by dissolving 45.38 g of CdBr2 in 375.0 g of water.

A solution of ethanol (C2H6O) in water is sometimes used as a disinfectant. 1.00 L of this solution contains 553 g of ethanol and 335 g of water. What is the mole fraction of ethanol in this solution?

Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol (ℳ = 46.07 g/mol). P°ethanol = 50.0 torr at 25°C.

Copper(II) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750.0 mL of a 1.25 M solution?

Determine the freezing point of a solution that contains 0.31 mol of sucrose in 175 g of water. Kf = 1.86°C/m

The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of the non-volatile solute in the solution?

A solution of sucrose (sugar) in water is in equilibrium with solid sucrose. If more solid sucrose is now added, with stirring,

In general, water is a good solvent for both polar and nonpolar compounds.

The most abundant molecules in the cell membranes of most species are

The solubility of gases in water increases with increase in the pressure of the gas.

Colloidal particles may be solids, liquids, or gases.

From the following list of aqueous solutions and water, select the one with the highest boiling point.

Heats of solution may be either positive or negative.

Calculate the molarity of a solution prepared by diluting 1.85 L of 6.5 M KOH to 11.0 L.

The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution?

Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and Reaction Direction

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

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What is the molality of a solution prepared by dissolving 86.9 g of diethyl ether, C₄H₁₀O, in 425 g of benzene, C₆H₆?

The Henry's Law constant (k) for carbon monoxide in water at 25°C is 9.71 × 10⁻⁴ mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm?

Cadmium bromide is used in photography and lithography. Calculate the molality of a solution prepared by dissolving 45.38 g of CdBr₂ in 375.0 g of water.

A solution of ethanol (C₂H₆O) in water is sometimes used as a disinfectant. 1.00 L of this solution contains 553 g of ethanol and 335 g of water. What is the mole fraction of ethanol in this solution?

Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol (ℳ = 46.07 g/mol). P°_ethanol = 50.0 torr at 25°C.

Copper(II) bromide is used as a wood preservative. What mass of CuBr₂ is needed to prepare 750.0 mL of a 1.25 M solution?

Determine the freezing point of a solution that contains 0.31 mol of sucrose in 175 g of water. K_f = 1.86°C/m