Acid/Base/Redox

Redox

100

When an atom is reduced it...

Bonus (100 pts):

When an atom is oxidized it...

gains electrons

Bonus:

loses electrons

200

What is the oxidation number of a Oxygen in a compound?

-2

300

What is the oxidation number of a monatomic molecule? 

0

400

What is the oxidation number of iodine in the compound:

NaIO3

+5

500

What is the oxidation number of nitrogen in the compound:

NH4+

-3

Other

100

Give an example of a pH indicator:

phenolphthalein, pH probes, litmus paper, pH paper etc.

200

Water is special because it can be either an _________ or a _________ and has a neutral pH of __________.

Acid, Base, 7

300

In a titration, the standard solution that has a known concentration and is being added to the unknown solution is called the:

Titrant

400

Strength of an acid/base depends on...

How much the acid dissociates (breaks apart)

500

What factors can affect the pH of a solution?

Strength AND concentration

Acids

100

Name a common acid:

Acidic fruits, stomach, vinegar, HCl, etc

200

What are common properties of acids?

Sour, corrosive, burns

300

What pH range is considered acidic?

0-6 (Anything under 7)

400

Once acids react, their product is known as what?

Conjugate base

500

According to Arrhenius, acids are defined as:

Bonus (100pts): According to Lewis, acids are defined as:

Any substance which releases H+ ions in water solution

Bonus:

Any substance which can accept an electron pair

Bases

100

Name a common base:

cleaning solutions, bleach, soap, NaOH, etc.

200

What are common properties of bases?

Bitter, slippery, caustic

300

What pH range is considered basic?

8-14 (anything above 7)

400

When bases react, their product is known as what?

Bonus (100pts):

What does the species have now to make them this:

Conjugate Acid

Bonus:

The proton (H+ group)

500

According to Bronsted and Lowry, a base is defined as:

Any substance which accepts a proton

Math

100

What is pH measuring?

How many H+ ions are in a solution

200

Concentration is measured in what unit?

Bonus (100 pts):

What is the formula for this?

Molarity (M)

Bonus:

M = n/v

300

What part of the titration curve is where neutralization is complete, and the solution contains only salt?

Equivalence point

400

In the area on the titration curve where the analyte has partially reacted, but has not reached the endpoint, the solution is called...

Buffer solution

500

What would you use to find the amount (moles) of acid in a solution?

Take the concentration (molarity) and multiply it by the volume of the solution (liters) to find the amount of moles of acid.