Definitions
This donates H+ ions
An Acid
Identify the pH range for acids, bases, and neutral substances.
Scale is 1-14, >7 is basic, <7 is acidic, 7 is neutral.
What is a pH indicator?
Something that changes color based on the pH of the material it is in.
What is the type of reaction where an acid and base combine? What are the products?
Neutralization, a salt and water.
What is the atomic symbol for Manganese?
Mn
Fix this statement: One definition of a base is that it donates H+.
One definition of an acid is that it donates H+
Or
One definition of a base is that it donates OH-
pH deals with the concentration of __________
H+ ions
What color is thymol blue in distilled water (pH 7)?
Yellow
What is the name of the specialized glassware we use for titraitions?
Burette
What is a valance electron?
Electron in the outermost energy level.
Provide both definitions of a base.
Donates OH- or accepts H+
If pH increases, the substance becomes _______ basic and the concentration of H+ ions ____________.
(More/Less, Increase/Decrease)
more, decreases.
What indicator is red in a pH of 4.45?
Litmus
Calculate the molarity of the acid if 25mL of it is neutralized by 35ml of 0.25M NaOH.
0.35M
What model is used to describe how electrons behave in a metal (metallic bonding).
Sea of electrons.
Complete the statement: NaOH is a _______ because it _______________________
NaOH is a base because it donates OH-
A pH of 5 is _____ times more acidic than a pH of 6.
10
8, or just over 8
Calculate the volume of base that must be used to neutralize 15 mL of 0.15M HCl if the molarity of the base is 0.24M
9.375 mL
Describe how to make a gas more ideal.
Increase temp, decrease pressure.
Define hydronium
H3O+
The concentration of H3O+ increases by a factor of 100 in a solution. What happens to the pH.
Decreases by 2 (more acidic).
Which of these is an acid? Which is a base? Which is neither?
NaOH, HNO3, CH4, Bromcresol green
NaOH - Base
HNO3 - Acid
CH4, bromcresol green - neither.
20.0 mL of 0.120M NaOH is added to 10.5 mL of HCl. What is the molarity of the HCl?
0.229M
What does Le Chatlier's Principle describe?
How systems at equilibrium respond to stresses.