 Chapter 4.4A: For the numbers 116.0, 97.9, 114.2, 106.8, and 108.3, find the mean...
 Chapter 4.4B: Spreadsheet for standard deviation. Lets create a spreadsheet to co...
 Chapter 4.4C: Use Table 41 for this exercise. Suppose that the mileage at which ...
 Chapter 4.4D: Use the NORMDIST spreadsheet function to answer these questions abo...
 Chapter 4.4E: A reliable assay shows that the ATP (adenosine triphosphate) conten...
 Chapter 4.4F: Traces of toxic, manmade hexachlorohexanes in North Sea sediments ...
 Chapter 4.4G: Calibration curve. (You can do this exercise with your calculator, ...
 Chapter 4.41: What is the relation between the standard deviation and the precisi...
 Chapter 4.42: Use Table 41 to state what fraction of a Gaussian population lies ...
 Chapter 4.43: The ratio of the number of atoms of the isotopes 69Ga and 71Ga in e...
 Chapter 4.44: (a) Calculate the fraction of bulbs in Figure 41 expected to have ...
 Chapter 4.45: Blood plasma proteins of patients with malignant breast tumors diff...
 Chapter 4.46: The equation for the Gaussian curve in Figure 41 is where is the m...
 Chapter 4.47: Repeat 46 but use the values 50, 100, and 150 for the standard dev...
 Chapter 4.48: What is the meaning of a confidence interval?
 Chapter 4.49: What fraction of vertical bars in Figure 45a is expected to includ...
 Chapter 4.410: List the three different cases that we studied for comparison of me...
 Chapter 4.411: The percentage of an additive in gasoline was measured six times wi...
 Chapter 4.412: Sample 8 of 43 was analyzed seven times, with and s 0.000 07. Find...
 Chapter 4.413: A trainee in a medical lab will be released to work on her own when...
 Chapter 4.414: The CdSe content (g/L) of nanocrystals was measured by two methods ...
 Chapter 4.415: Now we use a builtin routine in Excel for the paired t test to see...
 Chapter 4.416: Two methods were used to measure fluorescence lifetime of a dye. Ar...
 Chapter 4.417: Do the following two sets of measurements of 6 Li/7 Li in a Standar...
 Chapter 4.418: If you measure a quantity four times and the standard deviation is ...
 Chapter 4.419: Students measured the concentration of HCl in a solution by titrati...
 Chapter 4.420: Hydrocarbons in the cab of an automobile were measured during trips...
 Chapter 4.421: A Standard Reference Material is certified to contain 94.6 ppm of a...
 Chapter 4.422: Nitrite ( ) was measured by two methods in rainwater and unchlorina...
 Chapter 4.423: Should the value 216 be rejected from the set of results 192, 216, ...
 Chapter 4.424: A straight line is drawn through the points (3.0, 3.87 104 ), (10.0...
 Chapter 4.425: Here is a leastsquares problem that you can do by hand with a calc...
 Chapter 4.426: Set up a spreadsheet to reproduce Figure 415. Add error bars: Foll...
 Chapter 4.427: Excel LINEST function. Enter the following data in a spreadsheet an...
 Chapter 4.428: Explain the following statement: The validity of a chemical analysi...
 Chapter 4.429: Suppose that you carry out an analytical procedure to generate a li...
 Chapter 4.430: Using the linear calibration curve in Figure 413, find the quantit...
 Chapter 4.431: Consider the leastsquares problem in Figure 411. (a) Suppose that...
 Chapter 4.432: Consider the linear calibration curve in Figure 413, which is deri...
 Chapter 4.433: Here are mass spectrometric signals for methane in H2: CH4 (vol%): ...
 Chapter 4.434: Nonlinear calibration curve. Following the procedure in Box 42, fi...
 Chapter 4.435: Logarithmic calibration curve. Calibration data spanning five order...
 Chapter 4.436: Confidence interval for calibration curve. To use a calibration cur...
Solutions for Chapter Chapter 4: Statistics
Full solutions for Quantitative Chemical Analysis  8th Edition
ISBN: 9781429218153
Solutions for Chapter Chapter 4: Statistics
Get Full SolutionsThis textbook survival guide was created for the textbook: Quantitative Chemical Analysis, edition: 8. Since 43 problems in chapter Chapter 4: Statistics have been answered, more than 65373 students have viewed full stepbystep solutions from this chapter. Quantitative Chemical Analysis was written by and is associated to the ISBN: 9781429218153. This expansive textbook survival guide covers the following chapters and their solutions. Chapter Chapter 4: Statistics includes 43 full stepbystep solutions.

Avogadro’s hypothesis
A statement that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. (Section 10.3)

axis of symmetry
An axis about which a compound possesses rotational symmetry.

Beer’s law
In UVVis spectroscopy, an equation describing the relationship between molar absorptivity (e), absorbance (A), concentration (C), and path length (l): e = A (C Ž l)

chemical shift (d)
In an NMR spectrum, the location of a signal, defined relative to the frequency of absorption of a reference compound, tetramethylsilane (TMS).

conjugate base
In an acidbase reaction, the product that results when an acid is deprotonated.

debye (D)
A unit of measure fordipole moments, where 1 debye = 1018 esu×cm.

disrotatory
In electrocyclicreactions, a type of rotation in which the orbitalsbeing used to form the new s bond must rotate in opposite directions (one rotates clockwise while the other rotates counterclockwise).

Exergonic reaction
A reaction in which the Gibbs free energy of the products is lower than that of the reactants. The position of equilibrium for an exergonic reaction favors products.

Hydrophilic
From the Greek, meaning waterloving.

imidazole
A compound containing a fivemembered ring that is similar to pyrrole but has one extra nitrogen atom at the 3 position.

Imide
A functional group in which two acyl groups, RCO! or ArCO!, are bonded to a nitrogen atom

matter waves
The term used to describe the wave characteristics of a moving particle. (Section 6.4)

mixture
A combination of two or more substances in which each substance retains its own chemical identity. (Section 1.2)

molal freezingpointdepression constant (Kf)
A constant characteristic of a particular solvent that gives the decrease in freezing point as a function of solution molality: ?Tf = Kf m. (Section 13.5)

Nucleotide
A nucleoside in which a molecule of phosphoric acid is esterifi ed with an !OH of the monosaccharide, most commonly either the 39!OH or the 59!OH.

polar covalent bond
A bond in which the difference in electronegative values of the two atoms is between 0.5 and 1.7.

resonance
A method that chemists use to deal with the inadequacy of bondline drawings.

Thermoset plastic
A polymer that can be molded when it is fi rst prepared, but once cooled, hardens irreversibly and cannot be remelted.

torsional strain
The difference in energy between staggered and eclipsed conformations (for example, in ethane).

tosylate
An excellent leaving group (OTs). transition state (Sect. 6.6): A state through which a reaction passes. On an energy diagram, a transition state corresponds with a local maximum.