3. What are for a system that mixes 1.00 mol of toluene and 3.00 mol of benzene? Assume ideal behavior and 298 K. (10%)

6. One example of a first-order reaction is the isomerization of hydrogen isocyanide to hydrogen cyanide: . If the rate constant at a particular temperature is , what mass of HCN remains after 1.50 hr if a 1.000-gram sample of HNC was present at the beginning of the reaction? (10%)