Inorganic Chemistry Questions

Which 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

Green 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

A. 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 =

An FM radio station broadcasts at 93.8 MHz. Calculate the wavelength of the corresponding radio waves. Wavelength= m

The 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.

A given set of p orbitals consists of ____ orbitals 1 2 3 4 5

Which 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

Which 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

Jupiter'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.

How many electrons can be contained in all of the orbitals with n = 4? 2 32 18 8 10

Which 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

A 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

Which 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.

Which of the following is an incorrect designation for an atomic orbital? 6s 3d 4f 1s 1p

1) 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?

A 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.

(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?

A 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)

Give 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 =

Calculate the energy of an electron in the n = 7 level of a hydrogen atom. Energy = J

Photosynthesis uses 660-nm light to convert CO₂ and H₂O into glucose and O2. Calculate the frequency of this light. Frequency= Hz

A 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?

Despite 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

The culture in the pre-Islamic Arabian peninsula (present day Saudi Arabia) was A. Nomadic B. Tribal C. Undefined D. Stationary

The 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?

1. Which organism is made up of one prokaryotic cell? (25 Points) A. bacteria B. flower C. bear D. cactus

How many electrons in an atom can have the following designations? 1p: 5p 5 f: 5px 2p n = 2:

A 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)

(1) What is the element with an electron configuration of 1s²2s²2p63s²3p64s²3d³? (2) What is the element with an electron configuration of 1s²2s²2p63s²3p6?

Choose the least polar bond. C-N F-CI OH H-CI

It 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

How many 4d electrons would be predicted in the ground state for the following elements? a. niobium b. silver c. rhenium

What 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

Photosynthesis uses 640-nm light to convert CO₂ and H₂O into glucose and O₂. Calculate the frequency of this light.

Draw the Lewis structure for ICl₂-

The 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

Complete 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) ⇒____

Order 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:_____

According 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.

Calculate the energy of an electron in the n = 2 level of a hydrogen atom.

What is the correct electron configuration of W²+? [Xe]4f¹45d4 [Xe]4f145d6 [Xe] 6d46s² [Xe]5f¹45d²6s² [Xe] 4f145d652

Determine the formal charge on nitrogen in NO₂. +1 +2 -1 0

A local FM radio station broadcasts at a frequency of 93.8 MHz. Calculate the wavelength at which it is broadcasting. -¹)

Chlorine 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%

What 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

(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?

What is the the shape (molecular geometry) of NO₂Cl?

(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 ____

A 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

Draw the Lewis structure for BH₂-