.

- The formula for the
**conjugate base** of **H** **2C****6H****6O****6**is

- The formula for the
**conjugate acid** of **HC** **2O****4**^{–}^{}is^{. }

- The formula for the
**conjugate acid** of **C** **2O****4**^{2-}^{}is .

- The formula for the
**conjugate acid** of **HPO** **4**^{2-}^{}is

- The formula for the
**conjugate acid** of **NO** **3**^{–}^{}is .

- The formula for the
**conjugate acid** of **NH** **3**is

Compare the following:

Acid 1: **hypochlorous acid **, **HClO** **– **

Acid 2: **hydrogen sulfide ion **, **HS**

Acid 3: **carbonic acid **, **H****2CO**_{ }**3 **

What is the formula for the **strongest ** acid ?

——-

Compare the conjugate bases of these three acids.

Acid 1: hydrofluoric acid , HF

Acid 2: hydrocyanic acid , HCN

Acid 3: hydrogen carbonate , HCO3-

What is the formula for the strongest conjugate base ? ——

Compare the following:

Acid 1: hydrocyanic acid , HCN

Acid 2: nitrous acid , HNO2

Acid 3: hypochlorous acid , HClO

What is the formula for the weakest acid ?——

An aqueous solution has a hydrogen ion concentration of **1** **×10**^{-9}^{} M (10^{-9}^{} M).

- What is the hydroxide ion concentration in this solution? M

- Is this solution acidic, basic or neutral? _________acidicbasicneutral

An aqueous solution has a hydroxide ion concentration of **1** **×10**^{-8}^{} M (10^{-8}^{} M).

- What is the hydrogen ion concentration in this solution? M

- Is this solution acidic, basic or neutral? _________acidicbasicneutral

An aqueous solution has a hydroxide ion concentration of **1** **×10**^{-6}^{} M (10^{-6}^{} M).

- What is the hydrogen ion concentration in this solution? M

- Is this solution acidic, basic or neutral? _________acidicbasicneutral

An aqueous solution has a hydrogen ion concentration of 1×10-8 M (10 -8 M).

- What is the hydroxide ion concentration in this solution?

M

- What is the pOH of this solution?

- What is the pH of this solution?

An aqueous solution has a hydroxide ion concentration of 1×10-8 M (10-8.0 M).

- What is the hydrogen ion concentration in this solution?

M

- What is the pH of this solution?

- What is the pOH of this solution?

An aqueous solution has a pOH of **9** .

- What is the pH of this solution?

- What is the hydrogen ion concentration in this solution? M

- What is the hydroxide ion concentration in this solution? M

An aqueous solution has a hydrogen ion concentration of **2.11×10** ^{-2}^{} M.

- What is the hydroxide ion concentration in this solution? ___M

- What is the pOH of this solution? ___

- What is the pH of this solution? ___

An aqueous solution has an hydroxide ion concentration of **2.11×10** ^{-2} ^{ }M.

- What is the hydrogen ion concentration in this solution? M

- What is the pOH of this solution?

- What is the pH of this solution?

An aqueous solution has a pH of **3.74 **.

**(1)** What is the pOH of this solution?

**(2)** What is the hydroxide ion concentration in this solution? M

**(3)** What is the hydrogen ion concentration in this solution? M