The first-order rearrangement of CH3NC  is measured to have a rate constant of 3.61 × 10-15 s-1 at 298 K and a rate constant of 8.66 × 10-7 s-1 at 425 K. Determine the activation energy for this reaction. ln (k2/k1) = (Ea/R). [(1/T1) – (1/T2) R = 0.08206 (atm ∙ L)/(mol ∙ K)= 8.314 J/(K · mol)

Which of the following mass spectra shows the presence of bromine in a compound?

How many degrees of unsaturation are there for a compound with the chemical formula, C6H11NO2 ?

Which of the peaks in the mass spectrum represents the molecular ion, M+ (also known as the parent peak?

Which of the following wavenumber corresponds to the fingerprint region on an IR spectrum?

Which of the following compounds gives an infrared spectrum with peaks at 3300 cm−1 (sharp peak) and 2150 cm−1 (sharp peak)?

Adept Kung wanted to abolish the ritual of sacrificing a sheep. Confucius said 

In the 20th Century, who founded the Republic of China, and wrote a collection of sayings called the little red book?

Zhang Daoling founded 

Sometimes, even leaders of small principalities would receive a title that is translated as “king”, that title being