Acid-Base Titration

1. In an acid-base titration, when does the equivalence point occur?

 A. When all the moles of H+ in the base solution have reacted with all the moles of OH- added from the buret. 

 B. When the moles of H+ in the acid solution equals the moles of H+ added from the buret. 

 C. When all the moles of H+ in the acid solution have reacted with all the moles of OH- added from the buret. 

 D. When the moles of OH- in the acid solution equals the moles of OH- added from the buret. 

2. If it takes 43.32ml of .1M NaOH to neutralize a 50ml HCL solution, how many moles of NaOH were added to the HCL solution?

 A. 8.664 x 10-3 moles 

 B. 4.332 x 10-3 moles 

 C. 2.166 x 10-3 moles 

 D. 1.083 x 10-3 moles 

3. If it takes 43.32ml of .1M NaOH to neutralize a 50ml HCL solution, how many moles of HCL were originally present?

 A. 8.664 x 10-3 moles 

 B. 4.332 x 10-3 moles 

 C. 2.166 x 10-3 moles 

 D. 1.083 x 10-3 moles 

4. If it takes 43.32ml of .1M NaOH to neutralize a 50ml HCL solution, what is the molarity of HCL?

 A. .0866M 

 B. .2166M 

 C. .0433M 

 D. 4.332M 

5. In the reaction, 2NaOH(aq) + H2SO4(aq)  Na2SO4 + 2H2O(l), estimate the number of moles of NaOH it would take to neutralize the H2SO4 solution.

 A. 4 moles of NaOH for every mole of H2SO4 

 B. 1 mole of NaOH for every mole of H2SO4 

 C. 2 moles of NaOH for every mole of H2SO4 

 D. .5 moles of NaOH for every mole of H2SO4