Chem

What is the conjugate acid for the base NH₃?

• NH₄⁺

• NH₂^-

• NH₅²⁺

• HCl

What is the H⁺ concentration of a solution with a pH of 2?

• .01 moles/L

• .1 moles/L

• .0001 moles/L

• .000001 moles/L

What is the pH of a solution with .0001 moles per L of H⁺?

• 4

• 3

• 10

• 13

Which of the following is NOT a property of a base? 

• Conduct electricity
• Change the color of an indicator solution
• Taste sour
• Are slippery when mixed with water

A ________________ acid ionizes (dissociates) completely. 

• Strong
• Weak
• Medium
• Moderate

A reaction in which H⁺ and OH^- cancel each other out is known as a __________________ reaction. 

• Neutralization
• Combustion
• Single Replacement
• Synthetic 

The K_w constant is ____________ at 25^oC.

• 1.0 x 10^-14

• 1.0 x 10¹⁴

• 6.022 x 10²³

• 6.0634 x 10^-34

pH + pOH = ________ at 25^oC

• 14

• 7

• 10

• 9

To find the pH of a solution you take the _______________ of the H₃O⁺ concentration. 

• -log
• log
• cos
• tan

What is the conjugate base in the following reaction?

• HCO₃^- 
• HCl
•  H₂CO₃ 
• Cl^-