Question

If that a chunk of potassium weighing 7.55 g is dropped into 400.0 g of water at
25.0 0C, what is the final temperature (in 0C) of the water if all the heat released is used to warm
the water

Answer 1

You know, I just don't have all of those thermodynamic tables memorized. So I need to know the kJ/mol for that reaction and make sure you tell me the equation too. It probably is 2K + 2H2O ==> H2 + 2KOH

Answer 2

its -196.49kJ/mol