CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
8th Edition
ISBN: 9780135204634
Author: Robinson
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2.54SP
Examine Figure 2.2, A portion of Mendeleev’s periodic table.
(a) Which characteristic was used to organize the elementsin the table?
(b) How was Mendeleev able to predict with a high levelof accuracy the properties of the undiscovered elementsbeneath Al and Si in the periodic table?
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Students have asked these similar questions
5
What would the complete ionic reaction be if aqueous solutions of potassium sulfate and barium acetate were mixed?
ed
of
Select one:
O a
2 K SO4 + Ba2 +2 C₂H3O21
K+SO4 + Ba2+ + 2 C2H3O21
K+SO42 + Ba2 +2 C2H3O2
BaSO4 +2 K+ + 2 C2H3O
estion
Ob.
O c.
Od.
2 K SO4 +Ba2 +2 C₂H₂O₂
BaSO4 + K+ + 2 C2H3O
BaSO4 + K + 2 C2H301
→Ba² +SO42 +2 KC2H3O
s page
(28 pts.) 7. Propose a synthesis for each of the following transformations. You must include the
reagents and product(s) for each step to receive full credit. The number of steps is provided.
(OC 4)
4 steps
4 steps
OH
b.
LTS
Solid:
AT=Te-Ti
Trial 1
Trial 2
Trial 3
Average
ΔΗ
Mass water, g
24.096
23.976
23.975
Moles of solid, mol
0.01763
001767
0101781
Temp. change, °C
2.9°C
11700
2.0°C
Heat of reaction, J
-292.37J -170.473
-193.26J
AH, kJ/mole
16.58K 9.647 kJ 10.85 kr
16.58K59.64701
KJ
mol
12.35k
Minimum AS,
J/mol K
41.582
mol-k
Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn &
Show your calculations for:
AH in J and then in kJ/mole for Trial 1:
qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J
qsin =
qrxn =
292.35 292.37J
AH in J = 292.375 0.2923kJ
0.01763m01
=1.65×107
AH in kJ/mol =
=
16.58K
0.01763mol
mol
qrx
Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con
Kelvin.)
AS=AHIT
(1.65×10(9.64×103) + (1.0
Jimai
Chapter 2 Solutions
CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
Ch. 2 - An element is a shiny, silver-colored solid at...Ch. 2 - Prob. 2.2ACh. 2 - PRACTICE 2.3Compounds A and B are colorless gases...Ch. 2 - APPLY 2.4If the chemical formula of compound A in...Ch. 2 - PRACTICE 2.5The gold foil that Rutherford used in...Ch. 2 - Prob. 2.6ACh. 2 - PRACTICE 2.7The isotope 3475Se is used medically...Ch. 2 - APPLY 2.8Element X is toxic to humans in high...Ch. 2 - PRACTICE 2.9Copper metal has two naturally occur-...Ch. 2 - Prob. 2.10A
Ch. 2 - Prob. 2.11PCh. 2 - APPLY 2.12If 2.26 1022 atoms Of element Y have a...Ch. 2 - Use the data from the mass spectrum of asample of...Ch. 2 - Use the data from the mass spectrum of a sample of...Ch. 2 - Which of the following drawings represents a pure...Ch. 2 - Red and blue spheres representatoms of different...Ch. 2 - Thymine, one of the four basesin deoxyribonucleic...Ch. 2 - Prob. 2.18ACh. 2 - Prob. 2.19PCh. 2 - Which of the following drawings most likely...Ch. 2 - Prob. 2.21PCh. 2 - Prob. 2.22ACh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24ACh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26ACh. 2 - Global climate is affected by variations in (a)...Ch. 2 - Prob. 2.28PCh. 2 - How many protons, neutrons, and electrons arein...Ch. 2 - Which sample of H2O has a higher ratio of 18O/16O...Ch. 2 - The last ice age occurred from 110,000 to11,700...Ch. 2 - For this problem, assume that water consistsonly...Ch. 2 - Prob. 2.33PCh. 2 - Prob. 2.34CPCh. 2 - Prob. 2.35CPCh. 2 - Prob. 2.36CPCh. 2 - Prob. 2.37CPCh. 2 - If yellow spheres represent sulfur atoms and red...Ch. 2 - Prob. 2.39CPCh. 2 - Prob. 2.40CPCh. 2 - Which of the following three drawings represents a...Ch. 2 - In the following drawings, red and blue spheres...Ch. 2 - Prob. 2.43CPCh. 2 - Prob. 2.44CPCh. 2 - Prob. 2.45CPCh. 2 - Prob. 2.46SPCh. 2 - Which element accounts for roughly 75% of the...Ch. 2 - Prob. 2.48SPCh. 2 - Prob. 2.49SPCh. 2 - Prob. 2.50SPCh. 2 - Prob. 2.51SPCh. 2 - Prob. 2.52SPCh. 2 - Prob. 2.53SPCh. 2 - Examine Figure 2.2, A portion of Mendeleev’s...Ch. 2 - Prob. 2.55SPCh. 2 - Prob. 2.56SPCh. 2 - Prob. 2.57SPCh. 2 - Prob. 2.58SPCh. 2 - Prob. 2.59SPCh. 2 - Prob. 2.60SPCh. 2 - Prob. 2.61SPCh. 2 - Prob. 2.62SPCh. 2 - Prob. 2.63SPCh. 2 - 2.60 List several general properties of the...Ch. 2 - Prob. 2.65SPCh. 2 - Prob. 2.66SPCh. 2 - Prob. 2.67SPCh. 2 - At room temperature, a certain element is found to...Ch. 2 - Prob. 2.69SPCh. 2 - At room temperature, a certain element is yellow...Ch. 2 - Prob. 2.71SPCh. 2 - Prob. 2.72SPCh. 2 - Prob. 2.73SPCh. 2 - Prob. 2.74SPCh. 2 - Prob. 2.75SPCh. 2 - How does Dalton’s atomic theory account for the...Ch. 2 - Prob. 2.77SPCh. 2 - A sample of mercury with a mass of 114.0 g was...Ch. 2 - Prob. 2.79SPCh. 2 - In methane, one part hydrogen combine with three...Ch. 2 - In borane, one part hydrogen combine with 3.6...Ch. 2 - Benzene, ethane, and ethylene are just three of a...Ch. 2 - Prob. 2.83SPCh. 2 - Prob. 2.84SPCh. 2 - 2.79 In addition to carbon monoxide (CO) and...Ch. 2 - Prob. 2.86SPCh. 2 - What affects the magnitude of the deflection of...Ch. 2 - Prob. 2.88SPCh. 2 - Prob. 2.89SPCh. 2 - Which of the following charges is NOT possible for...Ch. 2 - What discovery about atomic structure was made...Ch. 2 - Prior to Rutherford’s gold foil experiment, the...Ch. 2 - A period at the end of sentence written with a...Ch. 2 - A 1/4 inch thick lead sheet is used for protection...Ch. 2 - Prob. 2.95SPCh. 2 - What is the difference between an atom’s atomic...Ch. 2 - Prob. 2.97SPCh. 2 - Prob. 2.98SPCh. 2 - Prob. 2.99SPCh. 2 - Prob. 2.100SPCh. 2 - The radioactive isotope cesium-137 was produced in...Ch. 2 - Prob. 2.102SPCh. 2 - Prob. 2.103SPCh. 2 - How many protons, neutrons, and electrons are in...Ch. 2 - Prob. 2.105SPCh. 2 - Prob. 2.106SPCh. 2 - Prob. 2.107SPCh. 2 - Prob. 2.108SPCh. 2 - Prob. 2.109SPCh. 2 - Fluorine occurs naturally as a single isotope. How...Ch. 2 - Hydrogen has three isotopes (1H,2H,and3H) , and...Ch. 2 - The unified atomic mass unit (u) is defined as...Ch. 2 - Prob. 2.113SPCh. 2 - Prob. 2.114SPCh. 2 - Label the following statements as true or false....Ch. 2 - Copper has two naturally occurring isotopes,...Ch. 2 - Sulfur has four naturally occurring isotopes,...Ch. 2 - aturally occurring boron consists of two isotopes:...Ch. 2 - Prob. 2.119SPCh. 2 - Magnesium has three naturally occurring isotopes:...Ch. 2 - A sample of naturally occurring silicon consists...Ch. 2 - Copper metal has two naturally occurring isotopes:...Ch. 2 - Germanium has five naturally occurring...Ch. 2 - What is the mass in grams of each of the following...Ch. 2 - How many moles are in each of the following...Ch. 2 - If the atomic weight of an element is x, what is...Ch. 2 - If the atomic weight of an element is x, what is...Ch. 2 - Prob. 2.128SPCh. 2 - If 4.611021 atoms of element Z have a mass of 0.8...Ch. 2 - Refer to Figure 2.10 showing a schematic...Ch. 2 - Copper has two naturally occurring isotopes,...Ch. 2 - Use the data from the mass spectrum of a sample of...Ch. 2 - Use the data from the mass spectrum of a sample of...Ch. 2 - Prob. 2.134SPCh. 2 - Which of the following bonds are likely to be...Ch. 2 - The symbol CO stands for carbon monoxide, but the...Ch. 2 - Prob. 2.137SPCh. 2 - Prob. 2.138SPCh. 2 - Prob. 2.139SPCh. 2 - Prob. 2.140SPCh. 2 - Prob. 2.141SPCh. 2 - Prob. 2.142SPCh. 2 - Prob. 2.143SPCh. 2 - Prob. 2.144SPCh. 2 - Prob. 2.145SPCh. 2 - Give systematic names for the following binary...Ch. 2 - Give systematic names for the following binary...Ch. 2 - Prob. 2.148SPCh. 2 - Prob. 2.149SPCh. 2 - Prob. 2.150SPCh. 2 - Prob. 2.151SPCh. 2 - Give systematic names for the following compounds:...Ch. 2 - Name the following ions: (a) Ba2+ (b) Cs+ (c) V3+...Ch. 2 - Prob. 2.154SPCh. 2 - Prob. 2.155SPCh. 2 - Prob. 2.156SPCh. 2 - Prob. 2.157SPCh. 2 - Prob. 2.158SPCh. 2 - Prob. 2.159SPCh. 2 - Prob. 2.160SPCh. 2 - Prob. 2.161SPCh. 2 - Prob. 2.162SPCh. 2 - Prob. 2.163SPCh. 2 - Prob. 2.164SPCh. 2 - Prob. 2.165SPCh. 2 - Ammonia (NH3) and hydrazine (N2H4) are both...Ch. 2 - If 3.670 g of nitrogen combines with 0.5275 g of...Ch. 2 - Prior to 1961, the atomic mass unit (amu) was...Ch. 2 - What was the mass ¡n atomic mass units of a 40Ca...Ch. 2 - Prob. 2.170MPCh. 2 - The mass percent of an element in a compound is...Ch. 2 - In an alternate universe, the smallest negatively...
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