Lab 4 - Acids & Bases

Guess how many water molecules self-ionize in one liter of water!

0.0000001 moles

What results from a reaction of a base (BOH) and a hydronium ion (H3O+)?

2 H2O + B+

what makes a acid acidic

chemical structure

Does the intake of acidic or alkaline foods affect the blood pH?

no the blood pH is constant

Which unit is used to express the acidity of an acid or alkaline solution?

pH

How are the pOH and pH linked?

pH + pOH = 14

If you have a glass of pure water, without any acids or bases, how many hydronium ions (H3O+) do you expect?

the same number as OH-

what is the smallest pH possible?

there is no fixed minimum

What is the difference in concentration of hydronium ions between pH 1 and pH 4?

X 1000

Based on what you have seen, which is the best definition for an acid?

acids donate protons in aqueous solution

What precautions should you take when working with strong acids and bases?

always wear googles and gloves

Remember the Bronsted-Lowry definition of acids and bases? What is water according to this definition?

an acid and a base

What is the definition of a base?

bases accept protons