Solubility & Solutions
Acids
Bases
pH, pOH, [OH-] & [H+]
Mixed Formulas
100
Which part of a water (Oxygen or Hydrogen) molecule surrounds & breaks off the Cl- ion from NaCl during the dissolving process?
Hydrogen
100
Where are acids located on the pH scale? Name one property of acids.
0-6.9 Sour
100
Where are bases located on the pH scale? Name one property of bases.
7.1 - 14 They are slippery
100
If a solution has a pOH of 3, is it acidic or basic?
Basic
100
What is the molarity of a solution containing 96 grams of LiF in 800 mL of solution?
3.7mol/.8L = 4.63M
200
What happens to solubility if you increase the temperature of a solid? a gas?
Increases, Decreases
200
When an acid reacts with a base, what compounds are formed (from a neutralization reaction)?
Salt and Water
200
What is the conjugate acid of the following base? OH-
H2O
200
If the hydrogen-ion [H+] concentration is 1 x 10 ^ -9 M, what is the pOH of the solution
5
200
If you are given 400 mL of 12 M HCl solution and you want to dilute it to 4.5 M HCl, what is the final volume of your diluted solution?
1066.67 ml
300
What do the lines on a solubility curve tell you?
The saturated amount
300
What is the conjugate base of the following acid? HCl
Cl-
300
According to Arrhenius, bases ___________________. According to Bronsted Lowry, bases __________________.
Donate OH - Receive H+
300
What is the pH of a solution with a concentration of 0.001 M hydrobromic acid?
3
300
What mass of NaCl is needed to make 2 L of 4 M solution?
467.52 grams
400
What happens to the freezing point of water when you add salt? What about the boiling point?
It goes down, It goes up
400
According to Arrhenius, Acids _____________________. According to Bronsted Lowry, Acids ____________________.
Donate H+
400
What is the definition of a strong base (not a concentrated base)?
It completely dissociates (ionizes)
400
If the pH is 12, what is the concentration of hydroxide [OH-] ion?
1 x 10^-2 or .01
400
If 35.0 mL of 5.0 M HCl is used to produce a 800.0-mL aqueous solution, what is the molarity of the dilute solution?
0.21875 M
500
Name 3 things that are electrolytes when dissolved in water.
Acids, Bases & ionic compounds
500
Write the neutralization reaction for H3PO4 & NaOH.
H3PO4 + 3NaOH -----> 3H2O + Na3PO4
500
If you see the word “neutralize” in a problem, which equation do you use?
MaVa = MbVb na nb
500
If the [H+] in a solution is 1 x 10 ^ -10 M, what is the [OH-]?
1 x 10 ^ -4 M
500
What is the molarity of HCl if 50 mL of 2 M Mg(OH)2 is needed to neutralize 10 mL of HCl? *Don’t forget the neutralization reaction
0.8 M
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