Use the following information to answer questions 1-5: Reaction 1: N₂H₄(l) + H₂(g) → 2 NH₃(g) ΔH = ? Reaction 2: N₂H₄(l) + CH₄O(l) → CH₂O(g) + N₂(g) + 3 H₂(g) ΔH = -37 kJ/molₑ Reaction 3: N₂(g) + 3 H₂(g) → 2 NH₃(g) ΔH = …
Use the following information to answer questions 1–5. A student titrates 20.0 mL of 1.0 M NaOH with 2.0 M formic acid, HCO 2 H (K a = 1.8 × 10 -4 ). Formic acid is a monoprotic acid. Question 1…
Use the following information to answer questions 1-5. The following reaction is found to be at equilibrium at 25°C: 2 SO 3 (g) ⇌ O 2 (g) + 2 SO 2 (g) ΔH = -198 kJ/mol Question 1: What is the expression for…
Problem 1: Consider the reaction: 2 H 2 (g) + O 2 (g) → 2 H 2 O(l) . Given that the enthalpy change for this reaction is -571.6 kJ/mol, calculate the enthalpy change for the formation of 1 mole of H 2 O(g…
Question 1: A multi-step reaction takes place with the following elementary steps: Step I: 2 NO(g) ⇌ N 2 O 2 (g) fast Step II: N 2 O 2 (g) + H 2 (g) → N 2 O(g) + H 2 O(g) slow Step III: N 2 O(g) + H 2 (g) → N 2 (g) +…
Stoichiometry Topics Covered: Percent composition, empirical formula, and molecular formula Limiting reactant, percent yield, and percent error Types of Reactions: Synthesis: Combination of two or more substanc…
Lesson 3.2: Gases Key Concepts and Equations Ideal Gas Law The Ideal Gas Law relates the pressure, volume, temperature, and amount of gas: PV = nRT P : Pressure V : Volume n : Number of moles …
Lesson 3: Chemical Bonding(2) Topics Covered: Intermolecular Forces Solution Formation Boiling Point Comparison …
JjangJi's All About AP Chemistry Concept Lecture Lesson 2: Chemical Bonding (1) Types of Bonding vs. Types of Substances Metallic Bond: Formed by the delocalization of electrons in a metal lattice. Electrons are…
JjangJi's All About AP Chemistry Concept Lecture Lesson 1: Atomic Structure (1) Topics Covered: Energy is Quantized Photoelectric Effect Coulombic Force Photoelectron Spectroscopy (PES) Where:
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