1. Which of the following titrations would have a pH > 7 at the equivalence point?
a. HI with KOH
B. HCIO4 with NH3
C. HCL with Sr(OH) 2
D. HCOOH with NaOH
2. Which would produce a yellow solution at a pH = 4.0
A. methyl red
B. Methyl violet
C. indigo carmine
D. chlorophenol red
3. A buffer can be made from equal moles of
A. HCl and NaCl
B. HCN and KOH
C. HNO3 and NH3
D. CH3COOH and NaCH3COO
4. Which of the following dissolves inw ater to produce a basic solution?
^i know that it's suppose to be a metal oxide that makes basic solution, but theres SO2 and Mg2 which are both metal oxide, so how do i know which one is it?
can someone please explain to me how to do these questions, and also i need a brief explanation of the difference between equivalence point and transition point....and also the definition of a buffer...my tutor say it must be a weak conjugate acid and base pair...and I don't know why....sorry for my stupid questions
i appreciate your help...thank you! :-*