Questions:
Assorted General Chemistry Problems
1. For each of the following situations, identify those for which a reaction is likely to occur. For those that do occur, write a net ionic equation.
a) A solution of lead(ll) nitrate mixed with a solution of sodium chloride:
b) A solution of sodium sulfate mixed with a solution of calcium chloride:
c) A solution of magnesium acetate mixed with a solution of silver nitrate
2. Explain why you would expect a BeCl2 molecule to be linear but an SCl2 molecule to be angular.
3. Use the standard enthalpies of formation to determine the change in enthalpy for the combustion of methane gas (CH4(g)).
4. In the reaction, H3BO3 + IO3- HIO3 + H2BO3-, calculate whether the products or the reactants are favored at equilibrium.
5. Calculate the voltage of a standard cell with the following oxidation-reduction reaction.
I2 + Cu 2I- + Cu2+
6. Draw and give the IUPAC name for 5 isomers of C4H7Cl
7. Give structural formulas for the following compounds.
a) Ethylmethylamine
b) 3-ethyl-2methylhexanol
c) Butyl ethanoate
d) 3-ethyl-2-hexanone
e) 2,3-dimethylpentanal
8. Balance the following equations by the half-cell method. Show both half-cell reactions and identify them as oxidation or reduction.
a) SO32- + MnO4- + H+ Mn2+ + SO42- + H2O(l)
b) Cl2(g) + OH- Cl- + ClO3- + H2O(l)
c) SO42- + I- + H+ S2- + I2(s) + H2O(l)