Comprehensive Quiz: Module 9

A Bronsted Lowry acid is:

What is the pOH of 0.00455 M HCl?

Predict if NaCl aqueous solution is:

Predict if NH4NO3 aqueous solution is:

What is the pH of a buffer made of 2.00 M acetic acid CH3COOH and 2.00 M sodium acetate NaCH3COO? [Hint: use the Henderson Hasselbalch Equation:
pH = pKa + log [ base / acid ]

ka of CH3COOH= 1.8E-5

What is the molarity of LiOH if it is titrated against 50.0 mL of 0.200 M HNO3 and the end point was found to be at 40.0 mL LiOH? [Hint: Set up first the balanced neutralization equation between the acid and the base].

What is the molarity of 60.0 mL H2SO4 if it is titrated against 50.0 mL of 0.300 M NaOH? [Hint: Set up first the balanced neutralization equation between the acid and the base].

What is the molarity of 40.0 mL HClO3 if it is titrated against 60.0 mL of 1.20 M NaOH? [Hint: Set up first the balanced neutralization equation between the acid and the base].

How many liters of 0.400 M KOH are required to titrate 100. mL of 0.250 M HNO3?

Identify the bases in the reaction?
HF(aq) + HCO3-(aq) <……> F-(aq) + H2CO3(aq)

The conjugate base of H2PO4-

Name the acid HClO

The conjugate acid of HSO4-

An acidic solution has a pH of 3.54. Its molarity is:

A basic solution has the pH of 9.511. The molarity of this basic solution is:

Determine the strongest base:

What is the pH of the solution 3.233 x 10-3 M HNO3?

Name the acid H3PO4

Name the base Fe(OH)3

Determine the conjugate acid in the following reaction:

NH3(aq) + H2O(l) ↔ NH4+(aq) + OH-(aq)

Determine the strongest acid:

Which acid among the following weak acids dissociates to give the strongest conjugate base? [Hint: use Ka values from the table]

What is formula used to determine the concentration of the hydroxide ion [OH-] in an aqueous solution using the water dissociation constant Kw?

What is the hydroxide ion concentration in 2.50 M Ca(OH)2?

Determine if the solution with hydroxide ion [OH-] concentration of 1.65 x 10-8 is acidic, basic or neutral.