Calculating pH

If a solution has a [H⁺] of 9.3x10^-11, what is the pH?

• 10.0

• 4.0

• 3.5

• 8.2

What is the equation for calculating pH?

• pH = [H⁺]

• pH = log [H⁺]

• pH = -log[OH^-]

• pH = -log [H⁺]

If the [H+] of a solution is 6.8 x 10^-9 mol/L the pH is

• 8.17
• 8.2
• 9.99
• 8.62

If the hydronium ion H₃O⁺ concentration is equal to the hydroxide ion OH^- concentration, the solution is a(n)

• acid

• base

• salt

• neutral solution

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

if the [H+] of a solution is 1.0 x 10^-2 mol/L the pH is

• 2
• -2
• 1
• 12

Ammonia has a pH of 12.  Ammonia is __________.

• an acid
• a base
• an element
• a metal

Which of these solutions is an acid?

• Dish Soap: pH of 12
• Tomato Soup: pH of 4
• Baking Soda: pH of 9
• Drain Cleaner: pH of 14

Tags

NGSS.MS-PS1-2

What is the pH of a 4.3 x 10^-7 M solution of H₂CO₃?

• 7
• 6.4
• 7.6
• 4.3

What is the [H+] if the pH is 4.0?

• 1.0 x 10-10  M
• 1.0 x 10-4  M
• 1.0 x 10-14  M
• 1.0 x 10-7  M