Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 6.5, Problem 6.8P
Problem 6-8
A concentrated solution of 15% w/v KOH solution is available. How would we prepare 20.0 ml, of a 0.10% w/v KOH solution?
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Problem 3. A cell contains K+, Cl¯and an impermeant anion A™. It is bathed in a
solution of K+ and Cl-. T= 300K. The cell's membrane is permeable to Cl- only. If CA¹ =
110 mM and cClº = 150 mM, find the values of CK¹, ckº, cci', and Vm such that the system
is in osmotic equilibrium and both sides are electroneutral (i.e., positive and negative
charges cancel each other out within both the inside and outside solutions).
Inside
Outside
CK¹
CCI
CA
+
Vm
ско
CClº
v = positive valence, or number of dissociable
FW = formula weight (molecular weight),
dil
where
N = desired normality
V = desired volume in liters
%3D
including any water of hydration
(1
or replaceable hydrogen ions
Pr
Problems
How much of each of the following chemicals is needed to
prepare 1,000 mL of both a 1M and a 1N solution? (Atomic
weights: Na = 22.99; Cl = 35.45; Ca = 40.08; S = 32.06;
O = 16; H = 1; K = 39.10; C = 12.01; and Al = 26.98).
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25. NaCl
26.CaCl,
27. CASO4
28.CaSO4 2H,O
29.H,SO4
30. K,CO,
31. Al(OH)3
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di
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Problems
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How much solute is needed to
solutions? (JIro l
1.
following
3 attempts left
Check
my work
Be sure to answer all parts.
(a) Calculate the OH concentration in an aqueous solution at 25°C with an H,O concentration of 7.15
x 10" M.
x 10
M
(b) The value of K at 50°C is 5.48 X 104. Calculate the OH concentration from the above solution at
50°C.
x 10
M
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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. 6.2PCh. 6.5 - Problem 6-3 How would we prepare 2.0 L of a 1.06 M...Ch. 6.5 - Prob. 6.4PCh. 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. 6.7PCh. 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. 6.10P
Ch. 6.8 - Prob. 6.11PCh. 6.8 - Prob. 6.12PCh. 6.8 - Problem 6-13 What is the osmolarity of a 3.3% w/v...Ch. 6.8 - Prob. 6.14PCh. 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. 6.24PCh. 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. 6.27PCh. 6 - 6-28 Which pairs of liquids are likely to be...Ch. 6 - Prob. 6.29PCh. 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. 6.33PCh. 6 - Prob. 6.34PCh. 6 - 6-35 Describe how we would prepare the following...Ch. 6 - Prob. 6.36PCh. 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. 6.42PCh. 6 - 6-43 The label on a sparkling cider says it...Ch. 6 - Prob. 6.44PCh. 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. 6.50PCh. 6 - Prob. 6.51PCh. 6 - Prob. 6.52PCh. 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. 6.56PCh. 6 - Prob. 6.57PCh. 6 - Prob. 6.58PCh. 6 - Prob. 6.59PCh. 6 - 6-60 Predict which of these covalent compounds is...Ch. 6 - Prob. 6.61PCh. 6 - Prob. 6.62PCh. 6 - Prob. 6.63PCh. 6 - Prob. 6.64PCh. 6 - Prob. 6.65PCh. 6 - 6-66 What gives nanotubes their unique optical and...Ch. 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. 6.69PCh. 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. 6.72PCh. 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. 6.76PCh. 6 - Prob. 6.77PCh. 6 - 6-78 (Chemical Connections 6A) Oxides of nitrogen...Ch. 6 - Prob. 6.79PCh. 6 - Prob. 6.80PCh. 6 - Prob. 6.81PCh. 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. 6.85PCh. 6 - Prob. 6.86PCh. 6 - Prob. 6.87PCh. 6 - Prob. 6.88PCh. 6 - Prob. 6.89PCh. 6 - Prob. 6.90PCh. 6 - 6-91 When a cucumber is put into a saline solution...Ch. 6 - Prob. 6.92PCh. 6 - 6-93 Two bottles of water are carbonated, with CO2...Ch. 6 - Prob. 6.94PCh. 6 - Prob. 6.95PCh. 6 - 6-96 We know that a 0.89% saline (NaCI) solution...Ch. 6 - Prob. 6.97PCh. 6 - Prob. 6.98PCh. 6 - 6-99 A concentrated nitric acid solution contains...Ch. 6 - 6-100 Which will have greater osmotic pressure?...Ch. 6 - Prob. 6.101PCh. 6 - Prob. 6.102PCh. 6 - 6-103 A swimming pool containing 20,000. L of...Ch. 6 - Prob. 6.104PCh. 6 - Prob. 6.105PCh. 6 - Prob. 6.106PCh. 6 - Prob. 6.107PCh. 6 - Prob. 6.108PCh. 6 - Prob. 6.109PCh. 6 - Prob. 6.110PCh. 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...
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