Introduction To General, Organic, And Biochemistry
12th Edition
ISBN: 9781337571357
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 6, Problem 26P
6-40 What is the molarity of each solution?
(a) 47 g of KCI dissolved in enough water to give 375 mL of solution
(b) 82.6 g of sucrose, C12H22O11, dissolved in enough water to give 725 mL of solution
(c) 9.3 g of ammonium sulfate, (NH4)2SO4 dissolved in enough water to give 2.35 L of solution
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(a) Lead azide, Pb3(N3)3 has been used as a detonator in automobile airbags. A saturated solution of lead (IV) azide contains 25 mg in 100.0 mL What is Ksp?
Moles of Pb(N3)4 =
folarity of Pb(N3)4 =
mass
molar mass
0.025 g
375.2804 g / mol
= 6.66 ×10-5 mol
moles
volume (in L)
6.66 × 10-5 mol
1 L
1000 mL
= 6.66 ×10-4 M
100 mLx
The expression for the solubility product constant, Ksp iS
Ksp = [Pb4+][N3-]
= (s)(4s)4
= 256s5
= 256(6.66×10-4)5
= 3.3586×10-14
=3.4×10-14
How many grams of lead azide will dissolve in 500 mL of 100 M Pb(NO3)2 solution?
6-10. What is the percent concentration of rubbing alcohol in a solution that contains
300 g of rubbing alcohol in 500 g of solution?
Northwestern
The solubility of N₂ in blood is a serious problem for divers breathing compressed air (78% N₂ by volume) at depths greater than 50 ft (see the margin note, p. 522). (a) What is the molarity of N₂ in blood at 1.00 atm? (b) What is the molarity of N₂ in blood at a depth of 50. ft? (c) Find the volume (in mL) of N₂ , measured at 25°C and 1.00 atm, released per liter of blood when a diver at a depth of 50. ft rises to the surface (kH for N₂ in water at 25°C is 7.0X10⁻⁴ mol/Latm and at 37°C is 6.2X10⁻⁴ mol/L atm; assume dof water is 1.00 g/mL).
Chapter 6 Solutions
Introduction To General, Organic, And Biochemistry
Ch. 6.5 - Problem 6-1 How would we prepare 250 mL of a 4.4%...Ch. 6.5 - Prob. 6.2QCCh. 6.5 - Problem 6-3 How would we prepare 2.0 L of a 1.06 M...Ch. 6.5 - Prob. 6.4QCCh. 6.5 - Problem 6-5 If a 0.300 M glucose solution is...Ch. 6.5 - Problem 6-6 A certain wine contains 0.010 M NaHSO3...Ch. 6.5 - Prob. 6.7QCCh. 6.5 - Problem 6-8 A concentrated solution of 15% w/v KOH...Ch. 6.5 - Problem 6-9 Sodium hydrogen sulfate, NaHSO4, which...Ch. 6.8 - Prob. 6.10QC
Ch. 6.8 - Prob. 6.11QCCh. 6.8 - Prob. 6.12QCCh. 6.8 - Problem 6-13 What is the osmolarity of a 3.3% w/v...Ch. 6.8 - Prob. 6.14QCCh. 6 - 6-15 Answer true or false. (a) A solute is the...Ch. 6 - 6-16 Answer true or false. (a) Solubility is a...Ch. 6 - 6-17 Vinegar is a homogeneous aqueous solution...Ch. 6 - 6-18 Suppose you prepare a solution by dissolving...Ch. 6 - 6-19 In each of the following, tell whether the...Ch. 6 - 6-20 Give a familiar example of solutions of each...Ch. 6 - 6-21 Are mixtures of gases true solutions or...Ch. 6 - 6-22 Answer true or false. (a) Water is a good...Ch. 6 - 6-23 We dissolved 0.32 g of aspartic acid in 115.0...Ch. 6 - Prob. 10PCh. 6 - 6-25 A small amount of solid is added to a...Ch. 6 - 6-26 On the basis of polarity and hydrogen...Ch. 6 - Prob. 13PCh. 6 - 6-28 Which pairs of liquids are likely to be...Ch. 6 - Prob. 15PCh. 6 - 6-30 Near a power plant, warm water is discharged...Ch. 6 - 6-31 If a bottle of beer is allowed to stand for...Ch. 6 - 6-32 Would you expect the solubility of ammonia...Ch. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - 6-35 Describe how we would prepare the following...Ch. 6 - Prob. 22PCh. 6 - 6-37 Calculate the w/v percentage of each of these...Ch. 6 - 6-38 Describe how we would prepare 250 mL of 0.10...Ch. 6 - 6-39 Assuming that the appropriate volumetric...Ch. 6 - 6-40 What is the molarity of each solution? (a) 47...Ch. 6 - 6-41 A teardrop with a volume of 0.5 mL contains...Ch. 6 - Prob. 28PCh. 6 - 6-43 The label on a sparkling cider says it...Ch. 6 - Prob. 30PCh. 6 - 6-45 The label on ajar of jam says it contains 13...Ch. 6 - 6-46 A particular toothpaste contains 0.17 g NaF...Ch. 6 - 6-47 A student has a bottle labeled 0.750% albumin...Ch. 6 - 6-48 How many grams of solute are present in each...Ch. 6 - 6-49 A student has a stock solution of 30.0% w/v...Ch. 6 - Prob. 36PCh. 6 - Prob. 37PCh. 6 - Prob. 38PCh. 6 - 6-53 Dioxin is considered to be poisonous in...Ch. 6 - 6-54 An industrial wastewater contains 3.60 ppb...Ch. 6 - 6-55 According to the label on a piece of cheese,...Ch. 6 - Prob. 42PCh. 6 - Prob. 43PCh. 6 - Prob. 44PCh. 6 - Prob. 45PCh. 6 - 6-60 Predict which of these covalent compounds is...Ch. 6 - On the basis of Tables 6.1 and 6.2 , classify the...Ch. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - 6-67 Calculate the freezing points of solutions...Ch. 6 - 6-68 If we add 175 g of ethylene glycol, C2H6O2,...Ch. 6 - Prob. 53PCh. 6 - 6-70 In winter, after a snowstorm, salt (NaCI) is...Ch. 6 - 6-71 A 4 M acetic acid (CH3COOH) solution lowers...Ch. 6 - Prob. 56PCh. 6 - 6-73 In each case, tell which side (if either)...Ch. 6 - 6-74 An osmotic semipermeable membrane that allows...Ch. 6 - 6-75 Calculate the osmolarity of each of the...Ch. 6 - Prob. 60PCh. 6 - Prob. 61PCh. 6 - Prob. 62PCh. 6 - Prob. 63PCh. 6 - Prob. 64PCh. 6 - Prob. 65PCh. 6 - 6-78 (Chemical Connections 6A) Oxides of nitrogen...Ch. 6 - Prob. 67PCh. 6 - Prob. 68PCh. 6 - Prob. 69PCh. 6 - 6-82 (Chemical Connections 6C) A solution contains...Ch. 6 - 6-83 (Chemical Connections 6C) The concentration...Ch. 6 - 6-84 (Chemical Connections 6D) What is the...Ch. 6 - Prob. 73PCh. 6 - Prob. 74PCh. 6 - Prob. 75PCh. 6 - Prob. 76PCh. 6 - Prob. 77PCh. 6 - Prob. 78PCh. 6 - 6-91 When a cucumber is put into a saline solution...Ch. 6 - Prob. 80PCh. 6 - 6-93 Two bottles of water are carbonated, with CO2...Ch. 6 - Prob. 82PCh. 6 - Prob. 83PCh. 6 - 6-96 We know that a 0.89% saline (NaCI) solution...Ch. 6 - Prob. 85PCh. 6 - Prob. 86PCh. 6 - 6-99 A concentrated nitric acid solution contains...Ch. 6 - 6-100 Which will have greater osmotic pressure?...Ch. 6 - Prob. 89PCh. 6 - Prob. 90PCh. 6 - 6-103 A swimming pool containing 20,000. L of...Ch. 6 - Prob. 92PCh. 6 - Prob. 93PCh. 6 - Prob. 94PCh. 6 - Prob. 95PCh. 6 - Prob. 96PCh. 6 - Prob. 97PCh. 6 - Prob. 98PCh. 6 - 6-111 As noted in Section 6-8C, the amount of...Ch. 6 - 6-112 List the following aqueous solutions in...Ch. 6 - 6-113 List the following aqueous solutions in...Ch. 6 - Prob. 102P
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- 6-38 Describe how we would prepare 250 mL of 0.10 M NaOH from solid NaOH and water.arrow_forward6-96 We know that a 0.89% saline (NaCI) solution is isotonic with blood. In a real-life emergency, you run out of physiological saline solution and have only KCI as a salt and distilled water. Would it be acceptable to make a 0.89% aqueous KCI solution and use it for intravenous infusion? Explain.arrow_forward6-103 A swimming pool containing 20,000. L of water is chlorinated to have a final CI2 concentration of 0.00500 M. What is the CI2 concentration in ppm? How many kilograms of CI2 were added to the swimming pool to reach this concentration?arrow_forward
- 6-43 The label on a sparkling cider says it contains 22.0 g glucose (C6H12O6) 190. mg K+ , and 4.00 mg Na+ per serving of 240. mL of cider. Calculate the molarities of these ingredients in the sparkling cider.arrow_forward6-60 Predict which of these covalent compounds is soluble in water. (a) C2H6 (b) CH3OH (c) HF (d) NH3 (e) CCI4arrow_forward6-18 Suppose you prepare a solution by dissolving glucose in water. Which is the solvent, and which is the solute?arrow_forward
- 6-113 List the following aqueous solutions in order of decreasing freezing point: 0.040 M glycerin (C3H8O3) 0.025 M NaBr, and 0.015 M AI(NO3)3 Assume complete dissociation of any salts.arrow_forward6-49 A student has a stock solution of 30.0% w/v H2O2 (hydrogen peroxide). Describe how the student should prepare 250 mL of a 0.25% w/v H2O2 solution.arrow_forward6-75 Calculate the osmolarity of each of the following solutions. (a) 0.39 M Na2CO3 (b) 0.62 M AI(NO3)3 (c) 4.2 M LiBr (d) 0.009 M K3PO4arrow_forward
- 6-112 List the following aqueous solutions in order of increasing boiling point: 0.060 M glucose (C6H12O6), 0.025 M LiBr, and 0.025 M Zn(NO3)2.Assume complete dissociation of any salts.arrow_forward6-15 Answer true or false. (a) A solute is the substance dissolved in a solvent to form a solution. (b) A solvent is the medium in which a solute is dissolved to form a solution. (c) Some solutions can be separated into their components by filtration. (d) Acid rain is a solution.arrow_forward6-48 How many grams of solute are present in each of the following aqueous solutions? (a) 575 mL of a 2.00 M solution of nitric acid, HNO3 (b) 1.65 L of a 0.286 M solution of alanine, C3H7NO2 (c) 320 mL of a 0.0081 M solution of calcium sulfate, CaSO4arrow_forward
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