Classmates
We have 2 students with this name.
Who is Noah?
Series of numbers and letters that begins with this: 1s2 2s2
What is electron configuration?
This describes the ratio of acid/base concentration in buffers.
What is approximately equal?
The name of this equation: pH=pKa+log(conjugate base/weak acid).
What is the Henderson-Hasselbach equation?
What the I in an ice table stands for.
What is the Initial or Initial Concentration?
This student has a purple phone case.
Who is Lloyd?
The term for when when forward and reverse reactions occur at a constant rate.
What is equilibrium?
One way you can make a buffer (several answers accepted).
What is mixing an excess of a strong acid with a weak base?
What is mixing an excess of a weak acid with a strong base?
What is mixing a weak acid with the salt of the conjugate base?
What is mixing a weak base with the salt of its conjugate acid?
What 2 concepts does the Henderson-Hasselbach equation relate together?
What is pH and pOH
A substance that donates protons ( H+) in a solution is called this.
What is an acid?
Students who were discriminated against by new seating.
Who are The Seniors?
Positive ΔH means this.
What is endothermic?
This stress does NOT change the pH of the buffer.
What is diluting the solution?
Adding a base increases the concentration of this ion in a solution.
What is OH- or Hydroxide ion?
This student is named after Pteridophyta (a nonflowering vascular plant).
Who is Fern?
How we tell if a graph is 0th/1st/2nd order.
What is "which graph is a straight line"?
This means that the buffering power is poor.
What is one concentration being more than
10 times larger than the other? Example:
[Acid] = 0.10 M while [Base] = 0.0010M
The term for when an acid and base react to form water and a salt.
What is neutralization?
Paolo’s best friend at 2 years old.
Who is Isaiah or Fern?
Reduction means this.
What is gaining electrons?
A buffer solution is made by mixing 0.1 moles of acetic acid (Ka = 1.75 × 10⁻⁵) with 0.15 moles of sodium acetate in 1 liter of solution. Using the Henderson-Hasselbalch equation, calculate the pH of the buffer. (Assume pKa of acetic acid is 4.76.)
What is 4.94?
Using the Henderson-Hasselbalch equation: pH = pKa + log([A⁻]/[HA]) = 4.76 + log(0.15/0.1) = 4.76 + 0.18 = 4.94
This is the conjugate base of H2SO4.
What is HSO4?