Recent content by drittel_regel

Homework Statement Given two positive numbers calculate their weighted average(Note: This is not actually a homework question, but silly me have doubts, so I put it in this category) Homework Equations Two given positive numbers a,b. No separate weights are available to weigh each...

Thanks Many thanks for this great tutorial. I would also suggest that you discuss some tricky questions on acids/bases and pH like: 1.How a solution of Ammonium Acetate can act as a buffer 2.What is the pH of 10^-8 m HCL solotion? 3. Can pH be lesser than zero or greater than 14? Thanks...