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Explanations/instrudtions please, for any future problems. 1. Select the correct name for Na3[Co(NO2)6] A) hexanitrocobalt(III) sodium B) hexanitrocobaltate(III) sodium C) sodium hexanitrocobaltate(III) D) sodium hexanitritocobaltate(III) E) sodium hexanitrocobalt (III) 2. Arrange the following acids according to increased acidity: HClO2 , HClO3 , HClO4 , ClOH A) HClO2 > HClO3 > HClO4 > ClOH B) HClO4 > HClO3 > HClO2 > ClOH C) HClO4 > HClO3 > HClO1 > HClO2 D) HClO > HClO2 > HClO3 > HClO4 E) HClO = HClO2 = HClO3 = HClO4 3. Consider the reaction:: TlBr + LiF ? TlF + LiBr Which is the correct prediction and explanation about the equilibrium constant, K, for this reaction? A) K > 1, because Br is a harder base than F B) K > 1, because F is a harder base than Br C) K < 1, because Br is a harder base than F D) K < 1, because F is a harder base than Br E) None of the above 4. Which addition increases the acidity of the solution? A) H2O to liquid NH3 B) CH3COONa to liquid NH3 C) H2O to liquid HCl D) Li2SO4 to liquid H2O E) Na2SO4 to liquid H2SO4 5. The MO delta (?) bonding can result from: (A) p-orbitals head-on overlap (B) p-orbitals side-on overlap (C) d-orbitals side-on overlap (D) d-orbitals head-on overlap (E) side-on overlap between a p-orbital and a d-orbital
A gas sample occupies a volume of 20cm^3 at 40 degree Celsius and at a pressure of 1.60atm. What volume will it occupy at STP?
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
What is the free Zn2+ concentration if 0.020 M Zn2+ solution is mixed with an equal volume of 2.0 M NH3? Kf for [Zn(NH3)4]2+ is 4.1 × 10^8
Estimate the average rate of production (Using this rate) of oxygen over the same time period. Considering the given equation 2H 2 O 2 --> 2H 2 O+O 2 -H 2 O 2
If 0.088 moles of sulfuric acid is mixed with water to make 411 mililiter of solution, what is the molarity of H+.
A "Nature Valley Trail Mix " chewy granola bar contains 140 calories (Cal). If this energy were to be used to heat up 4.25 L of water at 25 degrees Celsius
Which best describes a solid?
If 1.00 g of an unknown molecular compound contains 8.35 x1021 molecules, what is its molar mass
The Ksp of barium fluoride is 1.0 x 10^-6. The Ksp of calcium fluoride is 3.9 x 10^-11. What is the remaining concentration of the first ion to precipitate when the second ion begins to precipitate?
Acetone (nail polish remover) has a density of 0.7857 g/cm^3. a. What is the mass, in g, of 28.56 mL of acetone? b. What is the volume, in mL, of 6.54 g of acetone?
Draw the structure of the isomer of C4H9Cl that is least reactive in an SN2 reaction. Do not consider stereochemistry.
What is the percentage yield if 465 grams of hydrogen reacted with excess nitrogen and 455 grams of ammonia is formed N2 (g) + 3 H2 (g) 2NH3(g)
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