Problem 1DE Problem 1E Problem 2E: Aqueous solutions of three different substances, AX, AY, and AZ, are represented by the three... Problem 3E:
4 3 Use the molecular representations shown here to classify each compound as a noneleclrolyte, a... Problem 4E: The concept of chemical equilibrium is very important Which one of the following statements is the... Problem 5E:
4 5 You are presented with a white solid and told that due to careless labeling it is not clear if... Problem 6E: Which of the following ions will always be a spectator ion in a precipitation reaction? Cl- , NO3- ,... Problem 7E: The labels have fallen off three bottles containing powdered samples of metals, one contains zinc,... Problem 8E: Explain how a redox reaction involves electrons in the same way that a neutralization reaction... Problem 9E Problem 10E Problem 11E:
4.11 Which data set, of the two graphed here, would you expect to observe from a titration like... Problem 12E: You are titrating an acidic solution with a basic one, and just realized you forgot to add the... Problem 13E: State whether each of the following statements is true or false. Justify your answer in each case... Problem 14E: State whether each of the following statements is true or false Justify your answer in each case... Problem 15E:
4.15 We have learned in this chapter that many ionic solids dissolve in water as strong... Problem 16E Problem 17E:
4.17 Specify what ions are present in solution upon dissolving each of the following substances in... Problem 18E Problem 19E Problem 20E: Acetone. CH3COCH3, is a nonelectrolyte; hypochlorous acid. HClO, is a weak electrolyte. and ammonium... Problem 21E:
4.21 Using solubility guidelines, predict whether each of the following compounds is soluble or... Problem 22E Problem 23E Problem 24E Problem 25E: Which ions remain in solution, unreacted, after each of the following pairs of solutions is mixed?... Problem 26E: Write balanced net ionic equations for the reactions that occur in each of the following cases.... Problem 27E:
4.27 Separate samples of a solution of an unknown salt are treated with dilute solutions of HBr,... Problem 28E Problem 29E Problem 30E Problem 31E Problem 32E Problem 33E: State whether each of the following statements is true or false. Justify your answer in each case.... Problem 34E: State whether each of the following statements is true or false. Justify your answer in each case.... Problem 35E:
4.35 Label each of the following substances as an acid, base, salt, or none of the above. Indicate... Problem 36E: An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The... Problem 37E Problem 38E: Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong... Problem 39E: Complete and balance the following molecular equations, and then write the net ionic equation for... Problem 40E: Write the balanced molecular and net ionic equations for each of the following neutralization... Problem 41E: Write balanced molecular and net ionic equations for the following reactions, and identify the gas... Problem 42E:
4.42 Because the oxide ion is basic, metal oxides react readily with acids.
Write the net ionic... Problem 43E:
4.43 Magnesium carbonate, magnesium oxide, and magnesium hydroxide are all white solids that react... Problem 44E:
4.44 As K20 dissolves in water, the oxide ion reacts with water molecules to form hydroxide... Problem 45E: True or false: If a substance is oxidized, it is gaining electrons. If an ion is oxidized, its... Problem 46E Problem 47E: Which region of the periodic table shown here contains elements that are easiest to oxidize? Which... Problem 48E: Determine the oxidation number of sulfur in each of the following substances: barium sulfate. BaSO4,... Problem 49E: Determine the oxidation number for the indicated element in each of the following substances: Sin... Problem 50E: Determine the oxidation number for the indicated element in each of the following compounds: Co in... Problem 51E: Which element is oxidized, and which is reduced in the following reactions? N2(g) + 3 H2(g) 2... Problem 52E: Which of the following are redox reactions? For those that are, indicate which element is oxidized... Problem 53E:
4.53 Write balanced molecular and net ionic equations for the reactions of
manganese with dilute... Problem 54E: Write balanced molecular and net ionic equations for the reactions of hydrochloric acid with nickel,... Problem 55E: Using the activity series (Table 4.5), write balanced chemical equations for the following... Problem 56E: Using the activity series (Table 4.5), write balanced chemical equations for the following... Problem 57E: The metal cadmium tends to form Cd2+ ions. The following observations are made: When a strip of zinc... Problem 58E:
4.58 The following reactions (note that the arrows are pointing only one direction) can be used to... Problem 59E: Is the concentration of a solution an intensive or an extensive property? What is the difference... Problem 60E Problem 61E: Calculate the molarity of a solution that contains 0.175 mol ZnC12 in exactly 150 mL of solution.... Problem 62E:
4.62
Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water... Problem 63E Problem 64E Problem 65E Problem 66E:
4.66 The average adult male has a total blood volume of 5.0 L. After drinking a few beers, he has a... Problem 67E:
4.67
How many grams of ethanol, CH2CH2OH should you dissolve in water to make 1.00 L of vodka... Problem 68E Problem 69E: Which will have the highest concentration of potassium ion: 0.20 M KC1, 0.15 M K2CrO4, or 0.080 M... Problem 70E Problem 71E Problem 72E Problem 73E Problem 74E Problem 75E Problem 76E Problem 77E Problem 78E Problem 79E Problem 80E Problem 81E Problem 82E Problem 83E: Some sulfuric acid is spilled on a lab bench You can neutralize the acid by sprinkling sodium... Problem 84E:
4.84 The distinctive odor of vinegar is due to acetic acid, CH3COOH, which reacts with sodium... Problem 85E: A 4.36-g sample of an unknown alkali metal hydroxide is dissolved in 100 0 mL of water An acid-base... Problem 86E:
4.86 An 8.65-g sample of an unknown group 2A metal hydroxide is dissolved in 85.0 mL of water. An... Problem 87E: A solution of 100.0 mL of 0.200 M KOH is mixed with a solution of 200.0 mL of 0.150 M NiSO4. Write... Problem 88E:
4.88 A solution is made by mixing 15.0 g of Sr(OH)2 and 55.0 mL of 0.200 M HNO3.
Write a balanced... Problem 89E Problem 90E: A 1.248-9 sample of limestone rock is pulverized and then treated with 30.00 mL of 1.035 M HCI... Problem 91AE: 4.91 Uranium hexafluoride, UF6, is processed to produce fuel for nuclear reactors and nuclear... Problem 92AE: The accompanying photo shows the reaction between a solution of Cd(NO3)2 and one of Na2S What is the... Problem 93AE Problem 94AE:
4.94 You choose to investigate some of the solubility guidelines for two ions not listed in Table... Problem 95AE:
4 95 Antacids are often used to relieve pain and promote healing in the treatment of mild ulcers... Problem 96AE:
4 96 The commercial production of nitric acid involves the following chemical reactions
4 NH3(g) +... Problem 97AE: Consider the following reagents: zinc, copper, mercury (density 13.6 g/mL), silver nitrate solution,... Problem 98AE: 98 Bronze is a solid solution of Cu(s) and Sn(s); solutions of metals like this that are solids are... Problem 99AE Problem 100AE Problem 101AE:
4.101 Hard water contains Ca2+ , Mg2 + , and Fe2+ , which Interfere with the action of soap and... Problem 102AE: Tartaric acid. H2C4H4O6, has two acidic hydrogens. The acid is often present in wines and a salt... Problem 103AE Problem 104AE: A solid sample of Zn(OH)2 is added to 0.350 L of 0.500 M aqueous HBr. The solution that remains is... Problem 105IE Problem 106IE Problem 107IE Problem 108IE: A fertilizer railroad car carrying 34,300 gallons of commercial aqueous ammonia (30% ammonia by... Problem 109IE Problem 110IE Problem 111IE Problem 112IE Problem 113IE Problem 114IE Problem 115IE:
4.115 Federal regulations set an upper limit of 50 parts per million (ppm) of NH3 in the air in a... format_list_bulleted