Calculations for Acids and Bases

pH

100

What is the pH of a solution with H⁺=1x10^-1M?

pH=-log(1x10^-1)=1

pH=1

200

What is the pH of a solution with H⁺=1x10^-3M?

pH=-log(1x10^-3)=3

^pH=3

300

What is the pH of a solution with H⁺=6.3x10^-5M?

pH=-log(6.3x10^-5)=4.20

pH=4.20

400

What is the pH of a solution with H⁺=2.0x10^-7M?

pH=-log(2.0x10^-7)=6.70

pH=6.70

500

What is the pH of a solution with H⁺=9.5x10^-10M?

pH=-log(9.5x10^-10)=9.02

pH=9.02

pOH

100

What is the pOH of a solution with OH^-1=1x10^-1M?

pOH=-log(1x10^-1)=1

pOH=1

200

What is the pOH of a solution with OH^-1=1x10^-4M?

pOH=-log(1x10^-4)=4

pOH=4

300

What is the pOH of a solution with OH^-1=3.2x10^-6M?

pOH=-log(3.2x10^-6)=5.49

pOH=5.49

400

What is the pOH of a solution with OH^-1=7.9x10^-9M?

pOH=-log(7.9x10^-9)=8.10

pOH=8.10

500

What is the pOH of a solution with OH^-1=1.6x10^-11M?

pOH=-log(1.6x10^-11)=10.80

pOH=10.80

Random

100

Identify the acid, base, conjugate acid and conjugate base  HClO4(aq) + H2O(l) ⇌ H3O+(aq) + ClO4 –(aq)

HClO4/ClO4      H3O/H2O

200

Identify the acid, base, conjugate acid and conjugate base

HC2H3O2(aq) + H2O(l) ⇌ H3O+(aq) + C2H3O2 –(aq)

H2O(l)/H3O+(aq)     C2H3O2 –(aq)/HC2H3O2(aq)

300

Calculate the percent ionization for a 6.0M weak base solution if the concentration of ions is 0.50M

8.3

400

Water can be an acid or a base

True (The word for this is Amphoteric)

500

Use the Kw formula to determine the [OH-] of a solution if the [H+] = 1.0X10-4 M.  

1.0x10-10M

Hydroxide ions

100

The pOH of a solution is 2. What is the hydroxide ion concentration?

[OH^-] = 10^-2 = 1 x 10^-2M

200

The pOH of a solution is 5. What is the hydroxide ion concentration?

[OH^-] = 10^-5 = 1 x 10^-5M

300

The pOH of a solution is 3.8. What is the hydroxide ion concentration?

[OH^-] = 10^-3.8 = 1.58 x 10^-4M

400

The pOH of a solution is 7.4. What is the hydroxide ion concentration?

[OH^-] = 10^-7.4 = 3.98 x 10^-8M

500

The pOH of a solution is 10.92. What is the hydroxide ion concentration?

[OH^-] = 10^-10.92 = 1.2 x 10^-11M

Mixed

100

A solution has a pOH of 5. What is the pH of the solution?

pH+pOH=14

pH=14-5=9

Answer:

pH=9

200

Is lemon juice an acid or base?

acid

300

What do you get when you add up the pH and pOH concentrations?

14

400

Whats the range of the pH in a acid?(Ex. 3-5)

less than 7

500

Whats the range of the pH in a base ?(Ex. 3-5)

more than 7 but less than 14