PAL 11/19/24

Bronstead-Lowry

100

Consider the reaction: F^-(aq) + HNO₂(aq) ↔ HF(aq) + NO2^-(aq)

Which species are acting as Brønsted-Lowry acids? bases?

Acid: HNO₂

Base: F^-

200

Consider the reaction: F^-(aq) + HNO₂(aq) ↔ HF(aq) + NO2^-(aq)

Which species are acting as Brønsted-Lowry Conjugate acid? Conjugate base?

Conjugate Acid: HF

Conjugate Base: NO₂^-

300

Consider the following reaction: 

NH₄⁺ + H₂0 ↔ H₃O⁺ + NH₃

What are the acid and base, as well as their conjugates

Acid: NH₄⁺

Base: H₂0 

Conjugate Acid: H₃O⁺ 

Conjugate Base: NH₃

Strong/Strong Titration

100

Find the pH of the following mixture:

20.0mL of .300M NaOH(aq) and 30.0mL of 0.200M HI(aq)

pH = 7

200

What is the pH of the following mixutre:

40.0mL of 1.0M HCl(aq) and 60.0mL of 1.0M NaOH(aq)

13.3=pH

300

What is the pH of the following mixture:

100 mL of .100M Na2O(aq) and 100 mL of .100M HClO4(aq)

12.7= pH

Weak Acid or Base

100

What is the pH of the following?

1.0M HCN(aq)

4.65 = pH

200

What is the pH of the following:

0.33M NH3(aq)

pH= 11.39

300

What is the pH of the following

(c) 3.05x10-2M NH4ClO4(aq)

5.39 = pH

Strong Acid or Base

100

What is the pH of  0.010M Na2O(aq)

pH = 12.3

200

What is the pH of 1.0M HClO4(aq)

pH =0

300

What is the pH of the following:

.64M CsClO₄

7

Spectator Ions

100

Predict whether each of the following solutions will be acidic, basic, or neutral. If acidic or basic label each solute as strong or weak.

(a) HClO4(aq) (b) RbNO3(aq) (c) Sr(OH)2(aq)

a. Strong Acid

b. Neutral

c. Strong Base

200

Predict whether each of the following solutions will be acidic, basic, or neutral. If acidic or basic label each solute as strong or weak.

a. HClO(aq) b. HF(aq) c. CaF₂(aq)

a. Weak Acid

b. weak acid

c. Weak base

300

Of each pair, which is the stronger base?

 ammonia or aniline

Ammonia