EP CHEMISTRY:CENTRAL SCI.-MOD.MASTERING
14th Edition
ISBN: 9780137453535
Author: Brown
Publisher: SAVVAS L
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Question
Chapter 4, Problem 112IE
Step 1:
Interpretation Introduction
To determine: The mass of chloride ions
Step 2:
Interpretation Introduction
To determine: The percentage by mass of chloride ion in sea water.
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1. Predict the organic product(s) of the following reactions. Assume excess of reagents unless
otherwise noted.
a)
&l
BH3 •THF
b)
1) NaOH
2) H3O+
solve
d)
ala
1) EtMgBr
2) H3O+
e)
H2N
سكر
CuLi
NH2
1) SOCI2
2) EtMgBr
3) H3O+
NC
H3O+
Δ
There are 48 pairs of students in the following table. Each pair has quantitatively determined the mass of taurine in a 250 mL can of the popular energy drink marketed as “Munster” using High Performance Liquid Chromatography (HPLC). The class results are presented below:
QUESTION: Summarise and report these results including an indication of measurement uncertainty.
In both calculation samples calculate if an outlier is present, max value, number of samples, mean, standard deviation, g (suspect), g (critical) and t (critical).
Mass of Taurine (mg)
Mass of Taurine (mg)
(Table continued)
152.01
152.23
151.87
151.45
154.11
152.64
152.98
153.24
152.88
151.45
153.49
152.48
150.68
152.33
151.52
153.63
152.48
151.68
153.17
153.40
153.77
153.67
152.34
153.16
152.57
153.02
152.86
151.50
151.23
152.57
152.72
151.54
146.47
152.38
152.44
152.54
152.53
152.54
151.32…
Indicate the rate expressions for reactions that have order 0, 1, and 2.
Chapter 4 Solutions
EP CHEMISTRY:CENTRAL SCI.-MOD.MASTERING
Ch. 4.1 - If you have an aqueous solution that contains 1.5...Ch. 4.1 - If you were to draw diagrams representing aqueous...Ch. 4.2 - Prob. 4.2.1PECh. 4.2 - Classify the following compounds as soluble or...Ch. 4.2 - Yes or No: Will a precipitate form when solutions...Ch. 4.2 - a. What compound precipitates when aqueous...Ch. 4.2 - What happens when you mix an aqueous solution of...Ch. 4.2 -
Write the net ionic equation for the...Ch. 4.3 - Prob. 4.5.1PECh. 4.3 -
Imagine a diagram showing 10 Na + ions and 10 OH-...
Ch. 4.3 -
Which of these substances, when dissolved in...Ch. 4.3 - Consider solutions in which 0.1 mol of each of the...Ch. 4.3 -
Which is the correct ionic equation for the...Ch. 4.3 - For the reaction of phosphorous acid (H3PO3) and...Ch. 4.4 - Prob. 4.8.1PECh. 4.4 - What is the oxidation state of the boldfaced...Ch. 4.4 - Which of the following statements is true about...Ch. 4.4 - Prob. 4.9.2PECh. 4.4 - Which of these metals is the easiest to oxidize?...Ch. 4.4 - Which of the following metals will be oxidized by...Ch. 4.5 - Prob. 4.11.1PECh. 4.5 - Calculate the molarity of a solution made by...Ch. 4.5 - Prob. 4.12.1PECh. 4.5 - What is the molar concentration of K+ions in a...Ch. 4.5 - Prob. 4.13.1PECh. 4.5 -
How many grams of Na2SO4 are there in 15 mL of...Ch. 4.5 - Prob. 4.14.1PECh. 4.5 - What volume of 2.50 M lead(II) nitrate solution...Ch. 4.6 - How many milligrams of sodium sulfide are needed...Ch. 4.6 -
How many grams of NaOH are needed to neutralize...Ch. 4.6 - Prob. 4.16.1PECh. 4.6 - Prob. 4.16.2PECh. 4.6 - Practice Exercise 1 A mysterious white powder is...Ch. 4.6 - Prob. 4.17.2PECh. 4 - Prob. 1DECh. 4 - Prob. 1ECh. 4 - Aqueous solutions of three different substances,...Ch. 4 -
4 3 Use the molecular representations shown here...Ch. 4 - The concept of chemical equilibrium is very...Ch. 4 -
4 5 You are presented with a white solid and told...Ch. 4 - Which of the following ions will always be a...Ch. 4 - The labels have fallen off three bottles...Ch. 4 - Explain how a redox reaction involves electrons in...Ch. 4 - Prob. 9ECh. 4 - Prob. 10ECh. 4 -
4.11 Which data set, of the two graphed here,...Ch. 4 - You are titrating an acidic solution with a basic...Ch. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 -
4.15 We have learned in this chapter that many...Ch. 4 - Prob. 16ECh. 4 -
4.17 Specify what ions are present in solution...Ch. 4 - Prob. 18ECh. 4 - Prob. 19ECh. 4 - Acetone. CH3COCH3, is a nonelectrolyte;...Ch. 4 -
4.21 Using solubility guidelines, predict whether...Ch. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Which ions remain in solution, unreacted, after...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 -
4.27 Separate samples of a solution of an unknown...Ch. 4 - Prob. 28ECh. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 -
4.35 Label each of the following substances as an...Ch. 4 - An aqueous solution of an unknown solute is tested...Ch. 4 - Prob. 37ECh. 4 - Classify each of the following aqueous solutions...Ch. 4 - Complete and balance the following molecular...Ch. 4 - Write the balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 -
4.42 Because the oxide ion is basic, metal oxides...Ch. 4 -
4.43 Magnesium carbonate, magnesium oxide, and...Ch. 4 -
4.44 As K20 dissolves in water, the oxide ion...Ch. 4 - True or false: If a substance is oxidized, it is...Ch. 4 - Prob. 46ECh. 4 - Which region of the periodic table shown here...Ch. 4 - Determine the oxidation number of sulfur in each...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Which element is oxidized, and which is reduced in...Ch. 4 - Which of the following are redox reactions? For...Ch. 4 -
4.53 Write balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - The metal cadmium tends to form Cd2+ ions. The...Ch. 4 -
4.58 The following reactions (note that the...Ch. 4 - Is the concentration of a solution an intensive or...Ch. 4 - Prob. 60ECh. 4 - Calculate the molarity of a solution that contains...Ch. 4 -
4.62
Calculate the molarity of a solution made by...Ch. 4 - Prob. 63ECh. 4 - Prob. 64ECh. 4 - Prob. 65ECh. 4 -
4.66 The average adult male has a total blood...Ch. 4 -
4.67
How many grams of ethanol, CH2CH2OH should...Ch. 4 - Prob. 68ECh. 4 - Which will have the highest concentration of...Ch. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Prob. 73ECh. 4 - Prob. 74ECh. 4 - Prob. 75ECh. 4 - Prob. 76ECh. 4 - Prob. 77ECh. 4 - Prob. 78ECh. 4 - Prob. 79ECh. 4 - Prob. 80ECh. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - Some sulfuric acid is spilled on a lab bench You...Ch. 4 -
4.84 The distinctive odor of vinegar is due to...Ch. 4 - A 4.36-g sample of an unknown alkali metal...Ch. 4 -
4.86 An 8.65-g sample of an unknown group 2A...Ch. 4 - A solution of 100.0 mL of 0.200 M KOH is mixed...Ch. 4 -
4.88 A solution is made by mixing 15.0 g of...Ch. 4 - Prob. 89ECh. 4 - A 1.248-9 sample of limestone rock is pulverized...Ch. 4 - 4.91 Uranium hexafluoride, UF6, is processed to...Ch. 4 - The accompanying photo shows the reaction between...Ch. 4 - Prob. 93AECh. 4 -
4.94 You choose to investigate some of the...Ch. 4 -
4 95 Antacids are often used to relieve pain and...Ch. 4 -
4 96 The commercial production of nitric acid...Ch. 4 - Consider the following reagents: zinc, copper,...Ch. 4 - 98 Bronze is a solid solution of Cu(s) and Sn(s);...Ch. 4 - Prob. 99AECh. 4 - Prob. 100AECh. 4 -
4.101 Hard water contains Ca2+ , Mg2 + , and Fe2+...Ch. 4 - Tartaric acid. H2C4H4O6, has two acidic hydrogens....Ch. 4 - Prob. 103AECh. 4 - A solid sample of Zn(OH)2 is added to 0.350 L of...Ch. 4 - Prob. 105IECh. 4 - Prob. 106IECh. 4 - Prob. 107IECh. 4 - A fertilizer railroad car carrying 34,300 gallons...Ch. 4 - Prob. 109IECh. 4 - Prob. 110IECh. 4 - Prob. 111IECh. 4 - Prob. 112IECh. 4 - Prob. 113IECh. 4 - Prob. 114IECh. 4 -
4.115 Federal regulations set an upper limit of...
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- 1. Answer the questions about the following reaction: (a) Draw in the arrows that can be used make this reaction occur and draw in the product of substitution in this reaction. Be sure to include any relevant stereochemistry in the product structure. + SK F Br + (b) In which solvent would this reaction proceed the fastest (Circle one) Methanol Acetone (c) Imagine that you are working for a chemical company and it was your job to perform a similar reaction to the one above, with the exception of the S atom in this reaction being replaced by an O atom. During the reaction, you observe the formation of three separate molecules instead of the single molecule obtained above. What is the likeliest other products that are formed? Draw them in the box provided.arrow_forward3. For the reactions below, draw the arrows corresponding to the transformations and draw in the boxes the reactants or products as indicated. Note: Part A should have arrows drawn going from the reactants to the middle structure and the arrows on the middle structure that would yield the final structure. For part B, you will need to draw in the reactant before being able to draw the arrows corresponding to product formation. A. B. Rearrangement ΘΗarrow_forward2. Draw the arrows required to make the following reactions occur. Please ensure your arrows point from exactly where you want to exactly where you want. If it is unclear from where arrows start or where they end, only partial credit will be given. Note: You may need to draw in lone pairs before drawing the arrows. A. B. H-Br 人 C Θ CI H Cl Θ + Br Oarrow_forward
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