1- Rank each of the following sets of acids in order of increasing acid strength

Question

1- Rank each of the following sets of acids in order of increasing acid strength. 3 pts each, 6 pts total

a. HBrO 3 , HClO 3 , HIO 3

b. HClO, HClO 2 , HClO 3 5.

2-Determine whether each of the following salts is acidic, basic, or neutral. 2 pts each, 6 pts total

a. KBr

b. Na 2 SO 4

c. CH 3 NH 3 Cl

3- Identify each of the following compounds as either a Lewis acids or a Lewis bases 2 pts each, 6 pts total

a. CO 2

b. BF 3

c. N(CH 3 ) 3

4- Write the formula for the conjugate acid that corresponds to each of the following Brønsted-Lowry bases. 3 pts each, 6 pts total

a. HSO 3 -

b. NH 3

Explanation / Answer

1. A. HIO3<HBrO3 <HClO3, with increase of electronegativity acidic strength increases. Cl2 has more electronegative than Br2 and I2. Hence HClO3 more acidic.

B. HClO< HClO2<HClO3, with increase of oxidation number of Cl, acidity also increases.

2. A. KBr - Basic (Salt of KOH and HBr)

B. Na2SO4- Neutral (Salt of NaOH and H2SO4)

C. CH3NH3Cl- Neutral since it is in salt form.

Generally solution of strong acid and strong base is neutral and strong base and weak acid is basic and strong acid and weak base is acidic.

3. A. CO2 - Lewis acid since it has multiple bonds between different electronegative atoms

B. BF3- Lewis acid since electron deficient species

C. N(CH3)3- Lewis base, since it has lone pair of electrons on nitrogen

4. A. H2SO3

B. NH4+

since Bronsted-Lowery Conjugate acid base are differed by one proton.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.