Solutions
Acids
Bases
Solubility Curves
Acids and Bases in Solutions
100
What is a solution?
A homogeneous mixture in a single phase.
100
What is the taste of an acid
It tastes sour
100
What is the taste of a base
Bitter taste
100
What does a solubility curve show (what is it used for?)
To demonstrate the solubility of different compounds in 100 mL water at different temperatures.
100
What is the reaction called when you mix an acid and a base?
Neutralization Reaction.
200
What is the part of the solution that is represented in the largest amount
Solvent
200
What is the color of the litmus paper after being acidified
Red
200
What is the color of the litmus paper after being exposed to a base?
Blue
200
Some curves increase as temperature increases, some curves decrease as temperature increase. What do the curves that increase with temperature represent and what do the curves that decrease represent?
Increase: Solids
Decrease: Gases
200
What ALWAYS forms in a neutralization reaction?
Water (H2O) and a salt
300
Solute vs. Solvent: Which one dissolves, which one gets dissolved?
Solute: dissolves
Solvent: gets dissolved
300
What is the name of the ion that acids contribute?
Hydrogen ion
300
What is the name of the ion that bases contribute?
Hydroxide ion
300
Name two compounds that have the same solubility at the same temperature.
Answers vary
300
DAILY DOUBLE
What is the concentration of hydrogen ions when the pH is low
High
400
How do we classify solutions?
Unsaturated, saturated, and supersaturated.
400
What can the pH of an acid be? What pH is the most acidic?
pH 0-7, 0 is the most acidic.
400
What can the pH of a base be? What pH is the most basic?
pH 7-14, 14 is most basic
400
If I add 70 grams of HCl to water at 40oC, what type of saturation will I get?
Supersaturation
400
HCl and NH4OH are mixed together. Which is the acid and which is the base?
Acid: HCl
Base: NH4OH
500
What is the other term we used for molarity?
Concentration
500
To neutralize a base of pH 13, what pH of an acid would you need?
pH 1
500
If I mix a weak acid of pH 5.5 with a strong base to get a solution that has a pH of 9, what was the pH of the strong base?
pH 7 - pH 5.5 = pH 1.5
pH 9 + pH 1.5 = pH 10.5
500
How many more grams of NH4Cl do I need to add a saturated solution originally at 50oC if I heat up the solution to 85oC to keep it completely saturated?
At 50oC: 50g
At 85oC: 70g
70g - 50g = 20g
500
H3(PO4) + NaOH
Find the products and balance the equation.
H3(PO4) + 3NaOH -> 3H(OH) + Na3(PO4)