AP Chemistry Acid Base Buffers

If a solution has a [OH^-] of 3.42 x 10^-12M what is the [H⁺]?

• 2.92 x 10^-3M 
• 3.42 x 10²M 
• 2.92 x 10^-2M 
• 3.42 x 10^-5M 

What is the conjugate acid in the following equation?

• PO₄^3- 
• HNO₃ 
• NO₃^- 
• HPO₄^2-
  

Which of the following represents the chemical formula for hydronium?

• H₂O
• H⁺
• H₃O⁺
• OH^-

Which of the following is not a strong acid?

• HCl
• HF
• HBr
• HNO₃

When citric acid is produced by the cells of an orange and dissolves in water, it produces a relatively small number of hydronium ions. Citric acid is best described as a

• concentrated acid. 
• weak acid. 
• dilute acid.
• strong acid.

What is the conjugate base in the following reaction?

• HCO₃^- 
• HCl
•  H₂CO₃ 
• Cl^-

If a solution has a [H⁺] of 1.2 x 10^-4M what is the [OH^-]?

• 8.3 x 10^-4M 
• 8.3 x 10^-11M 
• 1.2 x 10¹⁰M 
• 1.2 x 10^-4M 

Which donates protons?

• Brønsted-Lowry Acids
• Brønsted-Lowry Bases
• Arrhenius Acids
• Arrhenius Bases

Which accepts protons?

• Brønsted-Lowry Acids
• Brønsted-Lowry Bases
• Arrhenius Acids
• Arrhenius Bases

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

• 2.5mL
• 5mL
• 25mL
• 50mL