Standard molar entropies
You are given pure samples of ethane, C2H6(g), and toluene, C7H8(l). What prediction would you make concerning their standard molar entropies at 298 K?
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An absorbance of 0.395 at 460 nm is measured for a solution of compound A with an unknown concentration. If the same sized cuvette is used, what is the concentration of compound A in this solution?
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The second -order decomposition of NO2 has a rate constant of 0.255 M-1S-1. How long will it take for 75% of NO2 to decompose if the initial concentration of NO2 is 1.33M?
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