At pH 5-6, 7-amino-2-naphthol undergoes coupling at the 8-position, Explain why at pH 10 the coupling occurs at the 1-position.
What is the final temperature of the sand A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at twenty five degree Celsius? (Assuming no heat is lost to the atmosphere,)