Inorganic Chemistry Questions
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Inorganic Chemistry
MetallurgyWhich of the following pairs represent the planning-to-operation time for Vogtle 3 and 4 reactors in
Georgia?
16 years and 17 years
15 years and 16 years
16 years and 15 years
17 years and 16 years
Inorganic Chemistry
Classification of Elements and PeriodicityGreen light can have a wavelength of 541 nm. The energy of a photon of this light is:
1.07 x 10-^31 J
5.54 x 10^14 J
5.41 x 10^-7 J
2.72 x 10^18 J
3.67 x 10^-19 J
Inorganic Chemistry
Preparation and Properties of CompoundsA. What is the hybridization of the central atom in AlBr3?
Hybridization =
What are the approximate bond angles in this substance?
Bond angles =
B. What is the hybridization of the central atom in SiH4?
Hybridization =
What are the approximate bond angles in this substance?
Bond angles =
Inorganic Chemistry
Preparation and Properties of CompoundsAn FM radio station broadcasts at 93.8 MHz. Calculate the wavelength of the corresponding radio waves.
Wavelength= m
Inorganic Chemistry
S Block - Group 2The first ionization energy of Mg is 735 kJ/mol. The second ionization energy is:
less than 735 kJ/mol
735 kJ/mol
More information is needed to answer this question.
greater than 735 kJ/mol
None of these choices are correct.
Inorganic Chemistry
Classification of Elements and PeriodicityA given set of p orbitals consists of ____ orbitals
1
2
3
4
5
Inorganic Chemistry
MetallurgyWhich of the following frequencies corresponds to light with the longest wavelength?
3.00 × 10^13 s^-1
8.50 x 10^20 s^-1
3.20 × 10^9 s^-1
9.12 x 10^12 s^-1
4.12 × 10^5 s^-1
Inorganic Chemistry
Classification of Elements and PeriodicityWhich of the following groups contains no ionic compounds?
PCl5, LiBr, Zn(OH)₂
HCN, NO₂, Ca(NO3)2
CH2O, H,S, NH
KOH, CC14, SF4
NaH, CaF2, N₂NH₂
Inorganic Chemistry
Preparation and Properties of CompoundsJupiter's moon lo was discovered to have high concentrations of sulfur oxides in its atmosphere. This, in combination with research into sulfur oxides relating to pollution on Earth, has led to renewed interest in sulfur oxide compounds. One compound discovered on lo was the blue disulfur trioxide. Write the chemical formula for this compound Express your answer as a chemical formula.
Inorganic Chemistry
Preparation and Properties of CompoundsHow many electrons can be contained in all of the orbitals with n = 4?
2
32
18
8
10
Inorganic Chemistry
Classification of Elements and PeriodicityWhich of the following statements is (are) true?
I. An excited atom can return to its ground state by absorbing electromagnetic radiation.
II. The energy of an atom is increased when electromagnetic radiation is emitted from it.
III. The energy of electromagnetic radiation increases as its frequency increases.
IV. An electron in the n = 4 state in the hydrogen atom can go to the n=2 state by emitting electromagnetic radiation at the appropriate frequency.
V. The frequency and wavelength of electromagnetic radiation are inversely proportional to each other.
I, II, III
II, III, IV
I, II, IV
III, IV, V
III, V
Inorganic Chemistry
Qualitative analysisA 11.5 mL aliquot of 0.157 M H3PO4 (aq) is to be titrated with 0.246 M NaOH(aq). What volume (mL) of base will it take to reach the equivalence point?
2.45
22.0
99.3
1.33
7.34
Inorganic Chemistry
Classification of Elements and PeriodicityWhich of the following describes the compound BaCl₂?
Choose all answers that apply.
If the compound dissolved in water it would be a strong electrolyte.
The compound is ionic.
The compound would conduct electricity if molten.
The compound is molecular.
The compound would be expected to have a relatively low melting point.
Inorganic Chemistry
Preparation and Properties of CompoundsWhich of the following is an incorrect designation for an atomic orbital?
6s
3d
4f
1s
1p
Inorganic Chemistry
Metallurgy1) What is the complete ground state electron configuration for the beryllium atom?
(2) What is the complete ground state electron configuration for the titanium atom?
Inorganic Chemistry
S Block - Group 1A line in the spectrum of atomic mercury has a wavelength of 254 nm. When mercury emits a photon of light at this wavelength, the frequency of this light is:
1.18 x 10^15 s^-1
7.83 x 10^-19 s^-¹
8.47 x 10^-16 s^-1
76.1 s^-1
None of these choices are correct.
Inorganic Chemistry
Classification of Elements and Periodicity(1) What is the name of the element with a valence electron configuration of 3s²3p6?
(2) What is the name of the element with a valence electron configuration of 2s²?
Inorganic Chemistry
Preparation and Properties of CompoundsA local FM radio station broadcasts at a frequency of 97.8 MHz.
Calculate the energy of the frequency at which it is broadcasting.
Energy = 5.8x10^14 kJ/photon
(1 MHz = 10 6 sec-¹)
Inorganic Chemistry
MetallurgyGive the name and formula of each of the binary compounds formed from the following
elements.
a. Li and P
Name =
Formula =
b. Na and I
Name =
Formula =
c. K and S
Name: =
Formula =
Inorganic Chemistry
Preparation and Properties of CompoundsCalculate the energy of an electron in the n = 7 level of a hydrogen atom.
Energy = J
Inorganic Chemistry
Qualitative analysisPhotosynthesis uses 660-nm light to convert CO₂ and H₂O into glucose and O2. Calculate the frequency of this light.
Frequency= Hz
Inorganic Chemistry
Coordination compoundsA bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottles are supposed to contain 300 milliliters (ml). In fact, the contents vary according to some normal distribution with mean u = 298 ml and standard deviation o=3ml.
a. What is the probability that the mean content of the bottles in a 36-pack is greater than 297.5ml?
b. What is the probability that the mean content of the bottles in a 36-pack is between 297.5 ml and 298.5 ml?
Inorganic Chemistry
Qualitative analysisDespite his reputation as an idiot, Emperor Justinian is also regarded well for
A. The Taj Mahal
B. The Pyramids
C. The Hagia Sophia
D. The Sphynx
Inorganic Chemistry
Qualitative analysisThe culture in the pre-Islamic Arabian peninsula (present day Saudi Arabia)
was
A. Nomadic
B. Tribal
C. Undefined
D. Stationary
Inorganic Chemistry
S Block - Group 2The successive ionization energies for an unknown element are
I₁ = 896 kJ/mol
1₂-1752 kJ/mol
13-14,807 kJ/mol
14-17,948 kJ/mol
To which family (that is, which group) in the periodic table does the unknown element most
likely belong?
Inorganic Chemistry
Qualitative analysis1. Which organism is made up of one prokaryotic cell?
(25 Points)
A. bacteria
B. flower
C. bear
D. cactus
Inorganic Chemistry
Preparation and Properties of CompoundsHow many electrons in an atom can have the following designations?
1p:
5p
5 f:
5px
2p
n = 2:
Inorganic Chemistry
Qualitative analysisA pump for a small swimming pool will circulate 2.87 x 102 gallons/hour through the filter. If the pool contains 4.15 x 105 ounces of water, how many seconds will it take
to filter the entire contents of the pool?
Known: 4.00 quarts = 1.00 gallons and 1.00 quart = 32.0 ounces
The entire pool will be filter in [a] s.
(give your answer in the scientific notation Y.YY x 10^XX)
Inorganic Chemistry
Classification of Elements and Periodicity(1) What is the element with an electron configuration of 1s²2s²2p63s²3p64s²3d³?
(2) What is the element with an electron configuration of 1s²2s²2p63s²3p6?
Inorganic Chemistry
Qualitative analysisIt is important to know the difference between a piece of evidence and an explanation. 9 Which passage is the explanation of the following evidence (data)? Saki begins the story about two feuding neighbors noting that "the game for whose presence [Ulrich] kept so keen an outlook was none that figured in the sportsman's calendar" and that Ulrich von Gradwitz "patrolled the dark forest in quest of a human enemy" (Saki 1).
A. Passage #1
B. Passage #2
C. Passage #3
D. Passage #4
Inorganic Chemistry
Classification of Elements and PeriodicityHow many 4d electrons would be predicted in the ground state for the following elements?
a. niobium
b. silver
c. rhenium
Inorganic Chemistry
P Block - Group 14What is the wavelength of an electromagnetic wave that has a frequency of 7.80 x 1014 Hz in a vacuum? (The speed of light in a vacuum is 3.00 × 108 m/s.)
A. 1.28% 10^-15 m
B. 2.34% 10^23 m
C. 2.60% 10^6 m
D. 3.85 x 10^-7 m
Inorganic Chemistry
D Block elementsPhotosynthesis uses 640-nm light to convert CO₂ and H₂O into glucose and O₂. Calculate the frequency of this light.
Inorganic Chemistry
Preparation and Properties of CompoundsThe absorption spectrum of sodium has a line at 589 nm. What is the energy of this line? (The speed of light in a vacuum is 3.00 x 10^8 m/s, and Planck's constant is 6.626 x 10^-34 J.s.)
A. 3.37 10^-19 J
B. 2.96 10^18 J
C. 8.89 x 10^26 J
D. 5.09 x 10^14 J
Inorganic Chemistry
Classification of Elements and PeriodicityComplete and balance the equations for the following reactions.
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is
not needed, leave it blank.)
K(s) +N₂ (9) ⇒____
K(s) + As(s) ⇒____
Inorganic Chemistry
Preparation and Properties of CompoundsOrder the following species with respect to carbon-oxygen bond length (longest to shortest).
CO, CO₂, CO2^-2, CH3OH
What is the order from the weakest to the strongest carbon-oxygen bond? (CH3OH exists as H3 C - OH.)
(Express your answers as chemical formulas separated by a comma.)
From longest to shortest C- O bond:_____
From weakest to strongest C- O bond:_____
Inorganic Chemistry
P Block - Group 13According to the VSEPR model, the arrangement of electron pairs around NH3 and
CH4 is:
the same, because both nitrogen and carbon are both in the second
period.
different, because in each case there are a different number of electron
pairs around the central atom.
the same, because in each case there are the same number of electron
pairs around the central atom.
different or the same, depending on the conditions leading to maximum
repulsion.
different, because in each case there are a different number of atoms
around the central atom.
Inorganic Chemistry
HydrogenCalculate the energy of an electron in the n = 2 level of a hydrogen atom.
Inorganic Chemistry
Classification of Elements and PeriodicityWhat is the correct electron configuration of W²+?
[Xe]4f¹45d4
[Xe]4f145d6
[Xe] 6d46s²
[Xe]5f¹45d²6s²
[Xe] 4f145d652
Inorganic Chemistry
Classification of Elements and PeriodicityDetermine the formal charge on nitrogen in NO₂.
+1
+2
-1
0
Inorganic Chemistry
Classification of Elements and PeriodicityA local FM radio station broadcasts at a frequency of 93.8 MHz.
Calculate the wavelength at which it is broadcasting.
-¹)
Inorganic Chemistry
P Block - Group 17Chlorine has two stable isotopes, Cl-35 and Cl-37. If their exact masses are 34.9689 amu and 36.9695 amu, respectively, what is the natural abundance of Cl-35? (The atomic-mass of chlorine is 35.45 amu.)
37.00%
75.95%
24.05%
50.00%
35.00%
Inorganic Chemistry
Preparation and Properties of CompoundsWhat is the wavelength of light with 5.53 x 10^-19 J of energy? (The speed of light in a vacuum is 3.00 x 10^8 m/s, and Planck's constant is 6.626 × 10^-34 J.s.)
A. 399 nm
B. 278 nm
C. 359 nm
D. 250 nm
Inorganic Chemistry
Classification of Elements and Periodicity(1) What is the complete ground state electron configuration for the silicon atom?
(2) What is the complete ground state electron configuration for the vanadium atom?
Inorganic Chemistry
Preparation and Properties of CompoundsWhat is the the shape (molecular geometry) of NO₂Cl?
Inorganic Chemistry
Metallurgy(1) The element with a valence electron configuration of 4s²4p² is in group ____ and period ____
(2) The element with a valence electron configuration of 2s²2p5 is in group ____ and period ____
Inorganic Chemistry
Qualitative analysisA fictional element has two isotopes, each making up 50% of the population. Isotope 1 has a mass of 80.0 amu, Isotope 2 has a mass of 85.0 amu. Calculate the atomic mass of the fictional element.
82.5 amu
40 amu
165 amu
42.5 amu