Stoich
What is the molar mass of H2O?
18 g/mol
On the pH scale, is a pH of 14 considered extremely basic or mildly basic?
Extremely
What intermolecular force is present in non-polar covalent molecules?
London Dispersion forces
How many electrons are in a neutral carbon atom?
6
In which year did Mr Ralston graduate from high school?
2018
How many moles of NH3 can be produced if it is the product of this reaction?
N2 + 3H2 -->
2
What is the pH of a solution that has a H+ ion concentration of 0.001M?
3
What is the bond angle in tetrahedral molecules?
109.5o
How many neutrons are in an atom of Hydrogen-2?
1
In which year did Mr Ralston begin teaching?
2024
How many carbon atoms are there in 1.0 grams of diamond (C)?
5.01x1022 atoms
What is the pH of a solution with 100 times fewer hydrogen ions than a solution with a known pH of 5?
7
What is the strongest intermolecular force?
Hydrogen-bonding
Which element is the most elecronegative?
Fluorine
How many tattoos does Mr Ralston have?
3
Specifically, what is a limiting reactant?
The reactant present in the smallest stoichiometric quantity.
Explain the difference between a concentrated acid and a dilute acid.
Concentrated: fewer water particles than acid particles.
Dilute: fewer acid particles than water particles.
Why is the bond angle in H2O (bent, 104.5o) smaller than the bond angle in CO2 (linear, 180o)?
Because H2O has 2 lone pairs of electrons on its central atom, forcing the hydrogen atoms slightly closer toward one another.
Which metallic element is the most reactive?
Francium
What is Mr Ralston's dog's name?
Beans
Why is calculating the limiting reagent necessary?
It dictates the maximum amount of product that can be formed.
Explain the difference between a strong acid and a weak acid.
Strong: Almost complete dissociation into ions.
Weak: Minimal (1-10%) dissociation into ions.
Determine the shape and polarity of acetone (CH2O).
Trigonal planar, polar.
Determine the full electron configuration for copper.
1s2 2s2 2p6 3s2 3p6 3d10 4s1
How did Mr Ralston break his finger on a bus in 2018?
Doing the YMCA