sour, reacts with metals, acts as an electrolyte in water, changes color of acid indicator, and destroys bases
100
True or false? Bases change litmus paper to blue.
True
100
What is the definition of titration?
A titration is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. Titrant is added from a buret to a known quantity of the unknown solution until the reaction is complete.
100
If the pH is 8, is the substance an acid, base, or neutral?
base
100
What is used to neutralize bases?
acids
200
What are all the properties of bases?
bitter, slippery, reacts with organic substances, acts as an electrolyte in water, changes color of base indicator, and destroys acids
200
What is a conjugate acid?
The base after it gains an H+ ion
200
What is a neutralization reaction?
Neutralization is essentially a chemical reaction between H3O+ ions of an acid with OH- ions of the base, to give undissociated molecules of water
200
if the pH=7, what is the concentration of [H+]
10^-7 mol/L
200
How many moles of NaOH does it take to neutralize 10 moles of HCl?
10 mol NaOH
300
What does the Bronsted-Lowry theory explain?
Acids are H+ donors, Bases are H+ receivers.
300
What is the ion associated with bases?
H+ (wanting it)
300
When titrating, when is the endpoint?
The point in a titration at which no more titrant should be added. It is determined, for example, by a color change in an indicator or by the appearance of a precipitate.
300
What is the relationship between pH and pOH
14-pOH=pH
300
How much potassium bromide, in grams, should be added to water to prepare 0.50L of solution with a molarity of 0.125 M?
7.44g
400
How is Arrhenius incorrect?
The Arrhenius theory is incorrect because an acid is expected to be an acid in any solvent. It is also incorrect because Arrhenius did not explain in his theory the behavior of acids and bases in a non-aqueous solution. An example of this fallacy is NH3 can be a base even though it contains no OH- ions.
400
What is the successive ionization of H2S?
H2S + H2O ←→ HS– + H3O+
HS– + H2O ←→ S2– + H3O+
400
If when titrating, you accidentally leave water in the birut before refilling it with a basic standardized substance, how does it affect your outcome?
It requires more of the standardized substance to fully titrate
400
What is the lowest possible pH?
There isn't one
400
How do u neutralize water?
It already neutralized.... u don't need to
500
Which of these are strong acids: HCl
H2SO4
HBr
HI
HClO4
H2O
All of them but H2O
500
In this reaction, what is the conjugate acid
HCl + H2O ⇌ H3O+ + Cl−
H3O+
500
Why shouldn't you dilute the standardized solution?
There is no way to calculate anything since the only constant is changed to an unknown.
500
If it takes 54mL of 0.1M NaOH to neutralize 250mL of an HCl solution, what is the concentration of HCl?
.0216M HCl
500
If it takes 50mL of 0.5 M KOH solution to completely neutralize 125mL of an HCl solution, what is the concentration of HCl.