Le Chatelier's Principle, pH, & Ocean Acidifcation
N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + heat
What happens if temperature increases
The reaction shifts left because heat is a product
What is chemical equilibrium
When the forward and reverse reaction rates are equal
Which reactant runs out first in a chemical reaction
The LR (Limiting Reactant)
Find the molar mass of H₂O
18 g/mol
Name the compound NaCl
Sodium Chloride
N₂(g) + 3H₂(g) ⇌ 2NH₃(g)
What happens if pressure increases
The reaction shifts right because there are fewer gas molecules on the product side
Name 2 characteristics of bases
Bitter taste feels slippery pH above 7 turns litmus blue any 2 work here
What is the molarity of a solution made by dissolving 2 moles of NaCl into 1 liter of water
2 M
CaCO₃ → CaO + CO₂
Classify this reaction
Decomposition reaction
Write the formula for magnesium oxide
MgO
2PH3(g) ⇌ P2(g) + 3H2(g)
ΔH = 83 kJ
1. ↑Pressure
a). Equilibrium Shift
b). [PH3]
c). [H2]
a) arrow right small arrow left long
b) up
c) down
Name 2 characteristics of acids
Sour taste, pH below 7, turns litmus red, conducts electricity any 2 work for this
Convert 44 grams of CO₂ into moles.
(Molar mass = 44 g/mol)
1 mol
Balance the equation
__ Al + __ O₂ → __ Al₂O₃
4Al + 3O₂ → 2Al₂O₃
Write the formula for aluminum sulfate
Al₂(SO₄)₃
2PH3(g) ⇌ P2(g) + 3H2(g)
2. ↑Temperature
a). Side of arrow Energy is on (Left or Right)
b). Equilibrium Shift
c). [PH3]
d). [P2]
a) left
b) right long left small
c) down
d) up
NH₃ + H₂O ⇌ NH4⁺ + OH⁻
Identify the Bronsted-Lowry acid and base
Acid = H₂O
Base = NH3
CA=NH4⁺
CB=OH⁻
Convert 2 moles of H₂O into grams
(Molar mass = 18 g/mol)
36 Grams
Zn + CuSO₄ → ?
Predict the products
ZnSO₄ + Cu
What intermolecular force is present between all molecules
London Dispersion Forces
N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + heat
If more H₂ is added, which direction does the reaction shift
To the right toward NH₃
If [OH⁻] = 1 × 10⁻⁵ calculate [H⁺] using Kw = 1 × 10⁻¹⁴ Is the solution acidic basic or neutral
[H⁺] = 1 × 10⁻⁹
The solution is basic
2H₂ + O₂ → 2H₂O
How many moles of H₂O are produced from 3 moles of O₂
6 moles H₂O
2Mg + O₂ → 2MgO
Classify this reaction
Synthesis reaction
What special intermolecular force occurs when hydrogen bonds with N O or F
Hydrogen bonding