Acids and Bases Basics
This ion is produced by acids in water.
What is H+
A Brønsted-Lowry acid does this.
What is donates a proton (H⁺)?
What is the pOH of a solution with pH = 6?
What is 8?
What is the purpose of an indicator in titration?
To show the endpoint/color change.
Name one safety rule for handling acids.
Ans vary
A solution with a pH of 11 is considered this.
What is a base?
Identify the base in: HCl + H₂O → H₃O⁺ + Cl⁻
What is H₂O?
Is a solution with pOH 2 acidic or basic?
What is basic?
What was Mrs. Shepherd's very first job?
What is a McDonald's cashier?
Convert 55.0 mL to liters.
What is 0.0550 L?
Name one property of bases.
Slippery feel, bitter taste, turns red litmus paper blue, etc.
Identify the conjugate acid of NH₃.
What is NH₄⁺?
Calculate the pH of a solution with [H⁺] = 1 × 10⁻⁴ M.
What is 4?
HClO4 + NaOH → NaClO4 + H2O
200.0 mL of 0.0753 M sodium hydroxide (NaOH)
0.0748 M perchloric acid (HClO4). How many mL?
What is 201.34 mL
Which tool measures liquid volume most accurately in titration?
What is a burette?
What is Mrs. Shepherd's coffee order?
Iced white mocha
In the reaction NH₃ + H₂O ⇌ NH₄⁺ + OH⁻, explain why water acts as an acid.
Water donates H⁺ to NH₃.
What is the concentration of H+ molecules if a solution has a pH of 3.68
What is 2.09x10-4 M?
H2SO4 + 2 LiOH → Li2SO4 + 2 H2O
190.0 mL of 2.1975 M lithium hydroxide (LiOH)
1.28 M sulfuric acid (H2SO4) How many mL?
What is 163 mL?
Describe how you could test whether an unknown solution is acidic or basic.
Use indicators, pH paper, conductivity tests, etc.
A student says all acids are dangerous and all bases are harmless. Explain why this statement is incorrect.
Some acids and bases are both dangerous or corrosive; safety depends on concentration and chemical properties, not just whether something is an acid or base.
Explain how conjugate acid-base pairs differ from regular reactants and products.
They differ by one proton.
What is the pH of a solution with a pOH concentration of 1.34x10-8 M?
What is 6.13?
HClO3 + KOH → KClO3 + H2O
180.0 mL potassium hydroxide (KOH) What M?
440.3 mL of 2.35 M chloric acid (HClO3)
What is 5.75 M?
Before starting, they accidentally add 50 mL of extra distilled water to the Erlenmeyer flask containing the acid sample. Later, they accidentally add 50 mL of extra distilled water to the burette, diluting the sodium hydroxide solution inside.
Adding water to the flask won't affect it (set amount of moles in the flask), adding it to the burette will dilute the base!