Weak Acid Strong Base Titration

What is the pH at the equivalence point.

• The pH is approximately 5

• The pH is approximately 6

• The pH is approximately 8

• The pH is approximately 9

What is the endpoint of a titration

• Where the amount of acid and base are equal as shown by a colour change 
• Where there is no base
• When the volume of base in the burette is used up 
• When there is no acid

Which of the following is NOT a strong base?

• Ca(OH)₂
• KOH
• NH₃
• Sr(OH)₂

Tags

NGSS.HS-PS1-1

Which type of titration is shown by this titration curve?

• Titration of a strong acid by a strong base 
• Titration of a weak acid by a strong base 
• Titration of a strong base by a strong acid 
• Titration of a weak base by a strong acid

The pH at the equivalence point of the titration of a strong acid with a strong base is usually:

• acidic 3.9
• acidic 4.5
• neutral 7.0
• basic 8.2

CH₃COOH is titrated with NaOH. Name the salt produced and its pH at the equivalence point.

• CH₃COONa, pH at 5

• CH₃COONa, pH at 7

• CH₃COONa, pH at 9

• CH₃COONa, pH at 13

I am titrating 1M HCl with 1M NaOH.  I have 25mL of HCl. How much NaOH will I need?

• 2.5mL
• 5mL
• 25mL
• 50mL

Tags

NGSS.HS-PS1-7

If phenolphthalein turns bright pink, it indicates

• an acid 
• a base
• a neutral

HCl + NaOH → 

• NaH + ClOH
• NaCl + H₂
• NaCl + H₂O
• NaCl + Cl₂

I have 25mL of 1M HCl which neutralises 20mL of NaOH. What is the concentration of the NaOH?

• 0.8 M
• 1 M
• 1.25 M

Tags

NGSS.HS-PS1-7