Titrations Quiz

What allows us to know when the end point has been reached?

• Bubbles

• Feels warm

• indicator changing color

• Turns to a solid

acid + base ₋>

• salt + hydrogen
• salt + water
• salt + carbon dioxide + water
• salt

A solution with a pH of 8.6 would be...

• Acid
• Base
• Neutral
• Acid and Base

Why do we perform a titration?

• To determine the concentration of an unknown solution

• To see if a reaction will occur between an acid and base

• To find the mass of an unknown acid

• To find the molar mass of an unknown solution

• To calculate the viscosity of the solution

If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution, what is the concentration of the HCl? (record you answer with the correct unit)

• 0.043 M

• 0.034 M

• 0.065 M

• 0.77 M

A 25.0 mL sample of HCl was titrated to the endpoint with 15.0 mL of 2.0 M NaOH. What is the molarity of HCl?

• 1.6 M HCl

• 0.03 M HCl

• 0.6 M HCl

• 1.2 M HCl

Which point on the titration curve corresponds to the point at which the moles of the added strong base are equal to the moles of the weak acid initially present?

• Q

• R

• S

• T

If it takes 25 mL of 0.05 M HCl to neutralize 345 mL of NaOH solution, what is the concentration of the NaOH solution?

• 0.0036 M NaOH

• 0.00125 M NaOH

• 3.62 M NaOH

• 1.25 M NaOH

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

• 2.5mL
• 5mL
• 25mL
• 50mL

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