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Nikles Chemistry
United States
เข้าร่วมเมื่อ 11 ส.ค. 2019
Videos for AP Chemistry, organized by new 2024 units. Coming Soon: Videos for new 2023 IB Chemistry Curriculum (first testing 2025).
My students are currently working on their internal assessments, so it may be a while until I post more content videos outside of inquiry skills and tools. Fortunately, most of the rest of the syllabus is review from AP Chemistry, so you can check out my AP playlists in the meantime.
•\tS2.1 - Ionic Bonding - AP Unit 2
•\tS2.2 - Covalent Bonding - AP Unit 2
•\tS2.3 - Metallic Bonding - AP Unit 2
•\tR1.1 - Enthalpy - AP Unit 6
•\tR1.2 - Energy Cycles - AP Unit 6
•\tR1.4 - Entropy - AP Unit 9
•\tR2.2 - Kinetics - AP Unit 5
•\tR2.3 - Equilibrium - AP Unit 7
•\tR3.1 - Acids and Bases - AP Unit 8
My students are currently working on their internal assessments, so it may be a while until I post more content videos outside of inquiry skills and tools. Fortunately, most of the rest of the syllabus is review from AP Chemistry, so you can check out my AP playlists in the meantime.
•\tS2.1 - Ionic Bonding - AP Unit 2
•\tS2.2 - Covalent Bonding - AP Unit 2
•\tS2.3 - Metallic Bonding - AP Unit 2
•\tR1.1 - Enthalpy - AP Unit 6
•\tR1.2 - Energy Cycles - AP Unit 6
•\tR1.4 - Entropy - AP Unit 9
•\tR2.2 - Kinetics - AP Unit 5
•\tR2.3 - Equilibrium - AP Unit 7
•\tR3.1 - Acids and Bases - AP Unit 8
IB Chemistry SL/HL - Reactivity 2.1.4 & 2.1.5 - Percent Yield and Atom Economy
First Test 2025
The percentage yield is calculated from the ratio of experimental yield to theoretical yield.
The atom economy is a measure of efficiency in green chemistry.
The percentage yield is calculated from the ratio of experimental yield to theoretical yield.
The atom economy is a measure of efficiency in green chemistry.
มุมมอง: 31
วีดีโอ
IB Chemistry SL/HL - Reactivity 2.1.2 & 2.1.3 - Stoichiometry, mole ratios, limiting/excess reactant
มุมมอง 6028 วันที่ผ่านมา
*The second example has the wrong final answer - I transposed the decimal point. Correct answer is 0.0822. The working is still all the correct method, only the final answer was wrong. Thank you to the commenter that pointed it out, and sorry for the confusion!* First Test 2025 The mole ratio of an equation can be used to determine: the masses and/or volumes of reactants and products; and the c...
IB Chemistry SL/HL - Reactivity 2.1.1 - Chemical Equations
มุมมอง 9928 วันที่ผ่านมา
First Test 2025 Chemical equations show the ratio of reactants and products in a reaction.
IB Chemistry SL/HL - Structure 1.5.3 & 1.5.4 - Ideal Gas Law and Combined Gas Laws
มุมมอง 6828 วันที่ผ่านมา
First Test 2025 The molar volume of an ideal gas is a constant at a specific temperature and pressure. The relationship between the pressure, volume, temperature and amount of an ideal gas is shown in the ideal gas equation PV = nRT and the combined gas law P1V1 / T1 = P2V2 / T2.
IB Chemistry SL/HL - Structure 1.5.1 & 1.5.2 - Ideal Gas Model and Real Gases
มุมมอง 6928 วันที่ผ่านมา
First Test 2025 An ideal gas consists of moving particles with negligible volume and no intermolecular forces. All collisions between particles are considered elastic.
IB Chemistry SL/HL - Structure 1.4.6 - Avogadro's Law (Volume and moles)
มุมมอง 5328 วันที่ผ่านมา
First Test 2025 Avogadro’s law states that equal volumes of all gases measured under the same conditions of temperature and pressure contain equal numbers of molecules.
IB Chemistry SL/HL - Structure 1.4.5 - Solutions, Concentrations, and Dilutions
มุมมอง 4828 วันที่ผ่านมา
First Test 2025 The molar concentration is determined by the amount of solute and the volume of solution.
IB Chemistry SL/HL - Structure 1.4.4 - Empirical & Molecular Formulas and combustion analysis
มุมมอง 7928 วันที่ผ่านมา
First Test 2025 The empirical formula of a compound gives the simplest ratio of atoms of each element present in that compound. The molecular formula gives the actual number of atoms of each element present in a molecule.
IB Chemistry SL/HL - Structure 1.4.1, 1.4.2, and 1.4.3 - The mole and molar mass
มุมมอง 75หลายเดือนก่อน
First Test 2025 The mole (mol) is the SI unit of amount of substance. One mole contains exactly the number of elementary entities given by the Avogadro constant. Masses of atoms are compared on a scale relative to C-12 and are expressed as relative atomic mass (Ar) and relative formula mass (Mr). Molar mass M has the units g mol-1.
IB Chemistry - Tool 1 - Experimental Techniques - Safety and Measurement
มุมมอง 492 หลายเดือนก่อน
First Test 2025 Addressing safety of self, others and the environment Measuring variables
IB Chemistry HL Only - Reactivity 3.4.13 - Electrophilic Substitution of Benzene mechanism
มุมมอง 422 หลายเดือนก่อน
First Test 2025 Electrophilic substitution reactions include the reactions of benzene with electrophiles.
IB Chemistry HL Only - Reactivity 3.4.11 and 3.4.12 - Electrophilic Addition reaction mechanisms
มุมมอง 512 หลายเดือนก่อน
First Test 2025 Alkenes readily undergo electrophilic addition reactions. The relative stability of carbocations in the addition reactions between hydrogen halides and unsymmetrical alkenes can be used to explain the reaction mechanism.
IB Chemistry HL Only - Reactivity 3.4.9 and 3.4.10 - Nucleophilic Substitution SN1 and SN2 reactions
มุมมอง 672 หลายเดือนก่อน
First Test 2025 Nucleophilic substitution reactions include the reactions between halogenoalkanes and nucleophiles. The rate of the substitution reactions is influenced by the identity of the leaving group.
IB Chemistry HL Only - Reactivity 3.4.8 - Complex Ions and Coordinate Bonds
มุมมอง 712 หลายเดือนก่อน
First Test 2025 Coordination bonds are formed when ligands donate an electron pair to transition element cations, forming complex ions.
IB Chemistry HL Only - Reactivity 3.4.6 and 3.4.7 - Lewis Acids and Bases
มุมมอง 782 หลายเดือนก่อน
First Test 2025 A Lewis acid is an electron-pair acceptor and a Lewis base is an electron-pair donor. When a Lewis base reacts with a Lewis acid, a coordination bond is formed. Nucleophiles are Lewis bases and electrophiles are Lewis acids.
IB Chemistry SL/HL - Reactivity 3.4.4 and 3.4.5 - Electrophiles and Electrophilic Addition
มุมมอง 1032 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 3.4.4 and 3.4.5 - Electrophiles and Electrophilic Addition
IB Chemistry SL/HL - Reactivity 3.4.3 - Heterolytic Fission
มุมมอง 942 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 3.4.3 - Heterolytic Fission
IB Chemistry SL/HL - Reactivity 3.4.1 and 3.4.2 - Nucleophiles and Substitution Basics
มุมมอง 1562 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 3.4.1 and 3.4.2 - Nucleophiles and Substitution Basics
AP Chemistry 9.11 - Electrolysis and Faraday’s Law
มุมมอง 443 หลายเดือนก่อน
AP Chemistry 9.11 - Electrolysis and Faraday’s Law
AP Chemistry - 9.10 - Cell Potential Under Nonstandard Conditions
มุมมอง 283 หลายเดือนก่อน
AP Chemistry - 9.10 - Cell Potential Under Nonstandard Conditions
AP Chemistry - 9.9 - Cell Potential and Free Energy
มุมมอง 203 หลายเดือนก่อน
AP Chemistry - 9.9 - Cell Potential and Free Energy
AP Chemistry - 9.8 - Galvanic (Voltaic) and Electrolytic Cells
มุมมอง 353 หลายเดือนก่อน
AP Chemistry - 9.8 - Galvanic (Voltaic) and Electrolytic Cells
IB Chemistry SL/HL - Reactivity 1.3.5 - Fuel Cells
มุมมอง 2243 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 1.3.5 - Fuel Cells
IB Chemistry SL/HL - Reactivity 1.3.4 - Biofuels
มุมมอง 1163 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 1.3.4 - Biofuels
IB Chemistry SL/HL - Reactivity 1.3.3 - Fossil Fuels
มุมมอง 1583 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 1.3.3 - Fossil Fuels
AP Chemistry - 9.7 - Coupled Reactions
มุมมอง 193 หลายเดือนก่อน
AP Chemistry - 9.7 - Coupled Reactions
IB Chemistry SL/HL - Reactivity 1.3.1 and 1.3.2 - Combustion and Incomplete Combustion
มุมมอง 2103 หลายเดือนก่อน
IB Chemistry SL/HL - Reactivity 1.3.1 and 1.3.2 - Combustion and Incomplete Combustion
AP Chemistry - 9.6 - Free Energy of Dissolution
มุมมอง 493 หลายเดือนก่อน
AP Chemistry - 9.6 - Free Energy of Dissolution
AP Chemistry - 8.11 - pH and Solubility
มุมมอง 293 หลายเดือนก่อน
AP Chemistry - 8.11 - pH and Solubility
AP Chemistry - 5.9 - Pre-Equilibrium Approximation
มุมมอง 1043 หลายเดือนก่อน
AP Chemistry - 5.9 - Pre-Equilibrium Approximation