Sour, Bitter, and Litmus
Acids taste ___ and turn litmus paper ___.
sour and red
According to Arrhenius, what ion does an acid form in water?
H3O+
What does pH measure
concentration of H+ or H3O+
What is the purpose of titration?
to find concentration of unknown solution
HCl
hydrochloric acid
Give two household examples of acids.
vinegar, lemon, lime, soda
What makes a Brønsted-Lowry base?
accepts proton
What’s the formula to calculate pH from [H₃O⁺]?
pH = -log[H₃O⁺]
What two things must you know to begin a titration?
volume and concentration of one reactant
H2SO4
sulfuric acid
Bases taste ___ and turn litmus paper ___.
bitter and blue
In Lewis theory, what is a base?
electron pair donor
If pH = 4, what is the pOH?
10
In a titration, you add a base to an acid. What happens at the equivalence point?
Acid and base neutralize each other
Name NaOH and determine if strong/weak acid/base
sodium hydroxide and strong base
Which of the following is a base: lemon juice, ammonia, vinegar, milk?
ammonia
What’s it called when a substance can act as both an acid and a base?
amphoteric
A solution has [OH⁻] = 1.0 × 10⁻³ M. What is the pH?
11
What’s the formula used to find unknown concentration in titration?
M₁V₁ = M₂V₂
Name HNO3 and determine if strong/weak acid/base
nitric acid and strong acid
What are electrolytes?
dissociated ions in water
What does polyprotic mean?
an acid with more than one hydrogen ion (H⁺) to donate
A solution has [H₃O⁺] = 1.0 × 10⁻⁵ M. Find the pOH.
pOH = 9
During titration, 25.0 mL of 0.1 M NaOH neutralizes 50.0 mL of HCl. What’s the concentration of HCl?
0.05 M
Name Rb(OH)2 and determine if strong/weak acid/base
weak base