Shared Flashcard Set

Details

Chapter 9: Acids, Bases, Salts
Acids, Bases, and Salts
28
Science
9th Grade
01/20/2014

Additional Science Flashcards

 


 

Cards

Term

 

What type of ions are formed when acids ionize?

Definition

H3O+

Hydronium ions

Term
Define an acid
Definition
compound that increases number of hydronium (H30+) ions when dissolved in water
Term
What color does litmus paper turn when dipped in an acid?
Definition
Red[image]
Term
List the properties of an acid.
Definition
  • Taste sour
  • causes indicators to change color
  • conduct electric current
  • corrosive (cause rust)
  • Can damage materials, including skin
Term
All acids ionize when dissolved in _______________.
Definition
water
Term
Define an electrolyte.
Definition
substance that conducts electric current
Term
Formula for Sulfuric Acid
Definition
H2SO4
Term

Formula for Nitric acid

Is it a strong or weak acid?

Definition

HNO3

Strong Acid

Term

Formula for Hydrocholoric Acid

 

Is it a strong or weak acid?

Definition

HCl

 

Strong

Term

Formula for Acetic Acid


Is it a strong or weak acid?

Definition

CH3COOH

 

Weak

Term

Formula for Formic Acid

 

Is it a strong or weak acid?

Definition

HCOOH

 

Weak

Term

Formula for Citric Acid

 

Is it a strong or weak acid?

Definition

H3C6H5O7


Weak

Term
Define a base.
Definition
a substance that increases number of hydroxide ions when dissolved in water.
Term
Formula for a hydroxide ion.
Definition
OH-
Term
Properties of Bases (5)
Definition
  • bitter taste
  • slippery
  • conduct electric current
  • cause indicators to change color
  • can damage skin
Term
What color does red litmus paper become when dipped in a base?
Definition
blue
Term
Strong bases are ionic compounds that contain a _____ ion and a ___________ion.
Definition

metal

hydroxide

Term
a strong bases is also known as a _______ ________
Definition
metal hydroxide
Term
When a metal hydroxide is dissolved in water, the metal ions and the hydroxide ions __________.
Definition
dissociate or separate
Term

Using chemical formulas, complete the dissociation of sodium hydroxide in water.

_____ → __ + __

Definition
NaOH → Na+ OH-
Term

What is the chemical formula for sodium hydroxide?

Is it a weak or strong base?

Definition

NaOH

Strong

Term

What is the chemical formula for ammonia?

Is it a strong or weak base?

Definition

NH3

weak

Term

Is a solution ammonia in water a good or poor conductor or electricity?

Why or why not?

Definition
poor conductor because only SOME of ammonia molecules become ammonium ions. It does not completely dissociate like the strong bases do when dissolved in water.
Term
The pH of a solution indicates it concentration of _______ and ______ ions.
Definition
hydroxide and hydronium.  In neutral solutions, the numbers of these ions are equal.
Term
How can you find the concentration of a strong acids from its pH?
Definition
Multiply the pH value by -1.  Then use the result as a power of 10. (1 X 10-4).  The result is the concentration of the acid in moles per liter (mol/L).
Term
Neutralization Reaction is the reaction between a _____ and a _____.
Definition
acid, base
Supporting users have an ad free experience!