Inorganic Chemistry Answers

Consider the following half reactions and their standard reduction potential values to answer the following questions.

Cu2+ (aq) + e- Cu+ (aq) E° = 0.15 V
Br2 (l) + 2e- 2Br- (aq) E° = 1.08 V

Answer the following questions based on the compounds BH3 and AsF4-
i) Draw the Lewis structure and if octet rule is not satisfied state which type of octet rule exception is applied? [2 marks]
ii) Use VSEPR theory to determine the spatial geometry and actual shape of the compounds. The number of lone pairs and bonded pairs must be clearly indicated. [2 marks]

1. Use the following information to answer the next question. In a chemical reaction, the reactants combine to form the final product. Before making the final product, they form an intermediate complex: C + D -> C – D -> E The reactants C and D form intermediate molecule C – D and then molecule E. The enthalpy change of reaction does not depend on the?

A. the state of reactants and products

B. nature of reactants and products

C. nature of the intermediate molecules

D. nature od C, D and E

E. initial and final enthalpies of the reaction

2.If the rate law for a hypothetical reaction is r = k[A]^2[B]^1, what is the order of reaction with respect to A?

Which of the following statements concerning rate laws is true?

A. All reactants must appear in the rate law

B. The rate constant increases when the rate increases

C. Products may appear in the rate law

D. The exponents of each reactant may be added to obtain the overall order

E. None of the above are all true statements

Which of the following would you expect to sparingly soluble MgOH2 to be more soluble on

Pure water
Ethanoic acid
Saturated solution of CaOH
aqueous solution of KCl

At 500k, Kc= 0.061 for the reaction N2 (g)+ 3H2(g)⇌ 2NH3(g). If analysis of the reaction vessel at 500K shows that the composition is 3.00mol/L N2, 2.00mol/LH2 and 0.500mol/L NH3. In which direction does the reaction proceed and why?

What mass of Gallium chloride would react with excess fluorine to produce 78.9 g of chlorine? Gallium fluoride is the other product.

1. The molecular formula of coordination compounds [Cr(NH3)4Cl2]Br and [Cr(NH3)4(Br)(Cl)]Cl are?
2. The IUPAC name of [Cr(NH3)4Cl2]Br and [Cr(NH3)4(Br)(Cl)]Cl are?
3. State the oxidation number of the metal ion in [Cr(NH3)4Cl2]Br and [Cr(NH3)4(Br)(Cl)]Cl.

Calculate the pH buffer which will permit 0.1 all but 0.1mg of Zn to be precipitated from ZnSO4 solution when saturated with H2S. how many grams of formic acid and sodium formate should be added to the solution to prepare this buffer?

Find the structure and draw the structure of the following from total electron counts
Ru5C(CO)15 ,. Rh6(CO)16
[Os N (CO)12]