PIB Solutions Practice Test

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

What does pH measure?

• Amount of Oxygen Ions
• Amount of Hydrogen Ions
• The amount of salt in a solution
• The density

What is this piece of apparatus called

• Pipette

• Burette

• Janette

• Cuvette

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

What is the endpoint of a titration

• Where the amount of acid and base are balanced according to the equation
• Where there is no base
• At the end

A hydrogen ion, H⁺, is the same as a(n):

• neutron
• electron
• proton
• hydroxide ion

In the equation below, what is the Bronsted Lowry acid (donates H⁺)?

HCl + NH₃ → Cl^- + NH₄⁺

• HCl

• NH₃

• Cl^-

• NH₄⁺

Which product in the following equation is a conjugate base?

H₂O + HCl → H₃O⁺ + Cl^-

• Water

• Hydrogen chloride

• Hydronium

• Chloride

What is the conjugate acid in the following equation?

PO₄^-3 + HNO₃ → NO₃^- + HPO₄^-2

• PO₄^3-

• HNO₃

• NO₃^-

• HPO₄^2-