Ib chem Study guides, Class notes & Summaries
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![IB Chemistry Extended Essay (Graded A, 31/34) - Investigating the Influence of inorganic electrolytes on the phase-inversion temperature of an anionic surfactant-bound oil-in-water macro emulsion.](/docpics/3045674/64ac5c42399e3_3045674_121_171.jpeg)
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IB Chemistry Extended Essay (Graded A, 31/34) - Investigating the Influence of inorganic electrolytes on the phase-inversion temperature of an anionic surfactant-bound oil-in-water macro emulsion.
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This is a 31/34 IB Chemistry Extended Essay which scored an A for the M2023 session. Chemistry is arguably the most challenging subject to write an Extended essay about which is why a high-level example is crucial in inspiring you're topic and guiding you through the writing process. I worked way too hard writing this essay and if I would have had an original example to base my work on writing it would have been effortless. The Essay investigates the Influence of inorganic electrolytes on the ph...
![Things to Memorize for IB Chem HL 100% Correct](/docpics/5227161/663b1749dc40f_5227161_121_171.jpeg)
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Things to Memorize for IB Chem HL 100% Correct
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Things to Memorize for IB Chem HL 
 
100% Correct 
 
Percentage Yeild actual yield/theoretical yield x 100 
 
Avogadro's Law for gases One mole of any gas occupies 22.7 L at STP 
 
Ideal Gas Law PV=nRT (n is equal to the number of moles of the substance and R is the gas 
constant 0.082 or 8.314) 
 
Molarity equation moles of solute/liters of solution 
 
Dilution M1V1=M2V2 
 
Hydrogen Emission Spectrum Color lines indicate the wavelengths of light that are released 
 
Balmer series A set of spec...
![IB Chemistry SL: Topic 4 Latest Version Graded A](/docpics/5227112/663b165aa02f4_5227112_121_171.jpeg)
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IB Chemistry SL: Topic 4 Latest Version Graded A
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IB Chemistry SL: Topic 4 Latest Version 
 
Graded A 
 
Ionic Bond Electrostatic attraction between oppositely charged ions 
 
Covalent Bond Electrostatic attraction between a pair of electrons and positively charged 
nuclei, formed as a result of electron sharing 
 
Metallic Bond Electrostatic attraction between a lattice of positive ions and delocalized 
electrons 
 
Polyatomic ions ions with more than one element 
 
e.g. CaCO3, Al(OH)3, Mg(NO3)2, (NH4)2SO4, Ba3PO4, LiHCO3 
 
Lattice ions arran...
![IB Chemistry HL, full course notes](/docpics/63f49229d4d06_2390828.jpg)
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IB Chemistry HL, full course notes
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In depth and simple to understand class notes taken over the course of 2 years in a highly accredited IB school for Chemistry HL. Notes by topic for all 11 core topics.

This includes diagrams, annotations, extensive notes and explanations and they are the notes that have solely led me to an IB 7 in HL Chemistry. 
Please use them as best you can. 

![IB Chemistry SL Latest Update Graded A+](/docpics/5227202/663b180fc2525_5227202_121_171.jpeg)
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IB Chemistry SL Latest Update Graded A+
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IB Chemistry SL Latest Update 
 
Graded A+ 
 
element a substance that cannot be broken down into simpler substances. 
 
atom smallest part of an element. 
 
compound substance that contains more than one element. 
 
empirical formula this shows the simplest whole number ratio of atoms of each element in a 
particle of the substance. 
 
molecular formula shows the actual number of atoms of each element in a molecule of the 
substance. 
 
structural formula this shows the arrangement of atoms an ...
![IB Chemistry Topic 10 Questions and Answers Graded A+](/docpics/5227166/663b174c8687e_5227166_121_171.jpeg)
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IB Chemistry Topic 10 Questions and Answers Graded A+
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IB Chemistry Topic 10 Questions and 
 
Answers Graded A+ 
 
All ________ compounds contain carbon, but ____ ____ carbon containing compounds are 
_______. organic, not all, organic 
 
Catenation Carbon can form long chains and rings, linked by single, double, or triple bonds. 
 
Hydrocarbon composed of only C and H atoms, the simplest organic compounds 
 
Empirical Formula simplest whole number ratio of atoms in the compound 
 
Molecular formula shows the actual number and types of atoms (multip...
![IB chemistry HL Latest Version Graded A+](/docpics/5227220/663b1882eb2ae_5227220_121_171.jpeg)
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IB chemistry HL Latest Version Graded A+
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IB chemistry HL Latest Version Graded 
 
A+ 
 
exothermic reaction heat is released by the system 
ΔΗ<0 
 
endothermic reaction heat is absorbed by the system 
ΔΗ>0 
 
standard enthalpy change of reaction(ΔΗ) the heat energy transferred under standard 
conditions (pressure-101.3 kPa, temperature- 298 K) 
 
combustion and neutralization are exothermic processes 
 
average bond enthalpy the energy required to break one mole of a certain type of bond in the 
gaseous state averaged acro...
![IB Chemistry Unit 2 SL Latest Version Rated A+](/docpics/5227133/663b169323b5f_5227133_121_171.jpeg)
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IB Chemistry Unit 2 SL Latest Version Rated A+
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IB Chemistry Unit 2 SL Latest Version 
 
Rated A+ 
 
Emission spectrum An emission spectrum is produced when an atom moves from a higher to 
a lower level. 
 
The line emission spectrum of hydrogen provides evidence for __________________ which 
converge at _____________ The line emission spectrum of hydrogen provides evidence for 
the existence of electrons in discrete energy levels which converge at higher energies. 
 
Continuous spectrum All the colours / wavelengths present merge smoothly in...
![IB Chemistry Topic 5 Latest Update Graded A+](/docpics/5227105/663b16278bb79_5227105_121_171.jpeg)
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IB Chemistry Topic 5 Latest Update Graded A+
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IB Chemistry Topic 5 Latest Update 
 
Graded A+ 
 
Enthalpy The amount of heat released (exothermic) or absorbed (endothermic) during a 
chemical reaction (the energy needed for the reaction to occur) 
This can be lowered with the presence of a catalyst. 
 
Change in Enthalpy Hproducts -Hreactants 
 
Specific heat equation c= q in Joules (or Change in H)/mass(g)(change in temp) 
 
Specific heat of water 4.18 J/gdegreesC 
**NOTE: Usually in kJ 
 
Endothermic v. Exothermic Endothermic: Absorbing e...
![IB Chemistry SL Functional Groups 100% Correct](/docpics/5227096/663b1624cf2e1_5227096_121_171.jpeg)
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IB Chemistry SL Functional Groups 100% Correct
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IB Chemistry SL Functional Groups 
 
100% Correct 
 
Alkanes 
Functional Group: none 
Suffix: -ane 
Formula: C(n)H(2n+2) 
 
Alkenes 
Functional Group: alkenyl 
Suffix: -ene 
Formula: C(n)H(2n) 
 
Alkynes 
Functional Group: alkynyl 
Suffix: -yne 
Formula: C(n)H(2n-2) 
 
halogenoalkanes 
Functional Group: —X ( X= F, Br, Cl, I) 
Suffix: none 
Formula: C(n)H(2n+1)X 
 
arenes 
Functional Group: phenyl 
Suffix: none 
Formula: C(n)H(2n-6) 
 
alcohols 
Functional Group: hydroxyl 
Suffix: -ol 
Formula:...
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