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Richard Thornley
Добавлен 12 окт 2008
Section by section of the syllabus (c) IB but not associated with the IB. Specific to the IB, uses IB terminology & information is based on past paper model answers. I receive no support for this project. Nothing - it is just me.
T-shirts: teespring.com/stores/ib-chemistry-video-review
Send me fun stuff to keep me amused at:
American International School of Budapest
Nagykovácsi, Nagykovácsi út 12, 2094
Hungary
$10 500 donated to charity from this channel and tutoring so far.
$3000 lent to Kiva
T-shirts: teespring.com/stores/ib-chemistry-video-review
Send me fun stuff to keep me amused at:
American International School of Budapest
Nagykovácsi, Nagykovácsi út 12, 2094
Hungary
$10 500 donated to charity from this channel and tutoring so far.
$3000 lent to Kiva
S1.5.2 Real verses Ideal Gases [SL IB CHEMISTRY]
Tip: If your IA uses the ideal gas law you can talk about how a lower pressure hotter gas would follow the law more closely and give better data.
Просмотров: 17
Видео
R.3.4.8 Deduce the charge on a complex ion, given the formula of ion & ligands [HL IB CHEMISTRY]
Просмотров 8119 часов назад
Easy to do, but you gotta recall your polyatomics.
R2.2 Differences between the energy profiles for SN1 and SN2 reactions [HL IB CHEMISTRY]
Просмотров 9821 час назад
SN1 has 2 peaks and the reaction is shorter. The first peak is higher and broader than the second SN2 has only one broad peak.
Tool 1:08 Measuring Potential Difference (voltage)
Просмотров 1272 месяца назад
Black wire in the COMmunal, remember to set the range and the AC or DC settings correctly.
R2.2 Why are alkanes kinetically stable but thermodynamically unstable? [SL IB CHEMISTRY]
Просмотров 2542 месяца назад
Well, they have a big Ea when reacting with oxygen and a big negative delta H too.
S3.1 Why are Si-Si bonds generally weaker than C-C bonds? [SL IB CHEMISTRY]
Просмотров 1682 месяца назад
Si is a bigger atom than carbon. Bigger atoms have longer bonds. So the bonding electrons are further from the pull of the nucleus. This weaker attraction makes a weaker bond. Even though Si has 10 more protons attracting the electrons than carbon does, Si also has 10 more electrons shielding the nucleus. Giving both atoms the same effective nuclear charge.
S1.1 Why does a Perfect Crystal at Zero Kelvin have Zero Entropy ? [HL IB CHEMISTRY]
Просмотров 3892 месяца назад
Entropy is a measure of disorder. A perfect crystal at O K has no energy (it is sill) and the highest order (perfect alignment of atoms). Music by soundcloud.com/russianhush
R3.4 Isotopic Tracers and Reaction Mechanisms [HL IB CHEMISTRY]
Просмотров 1222 месяца назад
Atoms can be "tagged" by using different isotopes of the same element. Since the atoms have the same number of protons and the same number of electrons, they will have the same chemical properties. Chemical properties are linked to electrostatic attraction. The different numbers of neutrons do not change the chemistry BUT make it possible to determine where specific atoms end up in the products.
S3.1.5 Reactions with water of the oxides of grp 1/2 metals, carbon and sulfur [SL IB CHEMISTRY]
Просмотров 1372 месяца назад
Alkali metals and alkaline earth metals form alkalies in water (hydroxides). Nonmetals form acidic oxides (such as CO2 dissolving in the seas producing carbonic acid that is dissolving the coral reefs)
S1.1.1 Can you Identify Atoms, Elements, Molecules, Compounds and Mixtures? [SL IB CHEMISTRY]
Просмотров 6713 месяца назад
Elements are the primary constituents of matter, which cannot be chemically broken down into simpler substances. They are made of one type of atom (all with the same number of protons) Atoms are the smallest part of an element. Molecules are 2 or more atoms chemically bonded together. Compounds consist of atoms of different elements chemically bonded together in a fixed ratio. Mixtures contain ...
R3.4.13 Mechanism of Electrophilic Substitution of Benzene [HL IB Chemistry]
Просмотров 1833 месяца назад
R3.4.13 Mechanism of Electrophilic Substitution of Benzene [HL IB Chemistry]
Specimen SL Multiple Choice Paper 1A / Model Answers (New syllabus 2025 onwards) [SL IB Chemistry]
Просмотров 7554 месяца назад
Specimen SL Multiple Choice Paper 1A / Model Answers (New syllabus 2025 onwards) [SL IB Chemistry]
Essential Nucleophilic/Electrophilic/Free Radical Additions and Substitution Reactions !
Просмотров 4144 месяца назад
Essential Nucleophilic/Electrophilic/Free Radical Additions and Substitution Reactions !
S.3.2 What makes a Polymer Biodegradable ? [SL IB CHEMISTRY]
Просмотров 6745 месяцев назад
S.3.2 What makes a Polymer Biodegradable ? [SL IB CHEMISTRY]
S3.2.12 Interpret IR, Mass Spec and H NMR Data in Structural Analysis [HL IB CHEMISTRY]
Просмотров 1,6 тыс.6 месяцев назад
S3.2.12 Interpret IR, Mass Spec and H NMR Data in Structural Analysis [HL IB CHEMISTRY]
R.3.4.2 Nucleophilic Substitution Reactions [SL IB CHEMISTRY]
Просмотров 4626 месяцев назад
R.3.4.2 Nucleophilic Substitution Reactions [SL IB CHEMISTRY]
R.3.4.1 Definition and Recognition of Nucleophiles [HL CHEMISTRY]
Просмотров 3256 месяцев назад
R.3.4.1 Definition and Recognition of Nucleophiles [HL CHEMISTRY]
R1.2.4/5.1 Standard Enthalpy of Combustion Calculations [SL old syllabus, HL new]
Просмотров 9618 месяцев назад
R1.2.4/5.1 Standard Enthalpy of Combustion Calculations [SL old syllabus, HL new]
R1.2.3/5.1 Standard Enthalpy Change of Formation and Combustion [HL IB Chemistry 2024]
Просмотров 1,8 тыс.8 месяцев назад
R1.2.3/5.1 Standard Enthalpy Change of Formation and Combustion [HL IB Chemistry 2024]
R1.3.5 Three Types of Fuel Cells [SL IB Chemistry]
Просмотров 9508 месяцев назад
R1.3.5 Three Types of Fuel Cells [SL IB Chemistry]
S3.2 Identification of Primary, Secondary and Tertiary Amines and Amides [SL IB CHEMISTRY]
Просмотров 4839 месяцев назад
S3.2 Identification of Primary, Secondary and Tertiary Amines and Amides [SL IB CHEMISTRY]
19.1 / R3.2.12 Standard Hydrogen Electrode (SHE) [HL IB Chemistry]
Просмотров 1,5 тыс.10 месяцев назад
19.1 / R3.2.12 Standard Hydrogen Electrode (SHE) [HL IB Chemistry]
S2.4.4 Describe the Common Properties of Plastics in Terms of Their Structure [SL Chemistry]
Просмотров 65410 месяцев назад
S2.4.4 Describe the Common Properties of Plastics in Terms of Their Structure [SL Chemistry]
S1.4.5 Converting mol/dm^3 to g/dm^3 [SL IB CHEMISTRY]
Просмотров 97011 месяцев назад
S1.4.5 Converting mol/dm^3 to g/dm^3 [SL IB CHEMISTRY]
S1.4.4 Using Experimental Combustion Data to Calculate Empirical/Molecular Formula [SL IB CHEMISTRY]
Просмотров 82911 месяцев назад
S1.4.4 Using Experimental Combustion Data to Calculate Empirical/Molecular Formula [SL IB CHEMISTRY]
S2.3.1 Explain the electrical, thermal conductivity & malleability of metals [SL IB Chemistry]
Просмотров 1,2 тыс.Год назад
S2.3.1 Explain the electrical, thermal conductivity & malleability of metals [SL IB Chemistry]
2.2/S1.3.3 Main energy level, n, has 2n orbitals & holds a maximum 2n^2 electrons. [SL IB CHEMISTRY]
Просмотров 3,2 тыс.Год назад
2.2/S1.3.3 Main energy level, n, has 2n orbitals & holds a maximum 2n^2 electrons. [SL IB CHEMISTRY]
R2.2.6 Distinguish between intermediates & transition states in energy profiles [HL IB Chemistry]
Просмотров 833Год назад
R2.2.6 Distinguish between intermediates & transition states in energy profiles [HL IB Chemistry]
S 1.2.2 Perform calculations involving non-integer RAM and abundance of isotopes [SL IB Chemistry]
Просмотров 1,3 тыс.Год назад
S 1.2.2 Perform calculations involving non-integer RAM and abundance of isotopes [SL IB Chemistry]
R2.2.4/5 The Boltzmann Distribution [SL IB Chemistry]
Просмотров 2,2 тыс.Год назад
R2.2.4/5 The Boltzmann Distribution [SL IB Chemistry]
Verses
You know in the world full of fent nal making this would actually save lives I think the world has gone the shyt because that is actually a fact
Do conformers ever switch between configurations? Or, what environment can create one or the other?
Yup, the energy required to flip between them is very low, so even a t low temperatures those little ethane molecules are spinning wildly!
@@ibchemvids Ah, thank you very much!
sensational
man youre goated
What with ethanol why is it in all fuel grades 87 89 91 93 and 94 sunoco
Ooo evil ideas 😈😈😈
urea saturated or unsaturated?
whys he playing half life
You have to use them for 8 days before you feel the difference
Maybe, but the chemical were many times more concentrated that those in foot sweat, so I would expect the time needed to turn brown to be shorter. A better experiment would be to use more realistic concentrations and 8 days then.
i got a question? what was the deal with that gmod video from 12 years ago on hallucinogens
It was part of the old course option on drugs and medicines. Everything in the vid was knowledge needed for the exam!
That's Japanese traffic light green, or at least is sensed that way by the camera. Most simple glass is actually green, even without any ultraviolet. But what makes glass Teal/Light Blue? Modern Pyrex is usually slightly blue. Turki-ye's GCA Kuvars jars are almost clear with a slight hint of blue.
Fabulous✨ Thank you;)
What it's herbs inside , dude
I expect it is a chemical that turns brown and sticky in water and is itself non toxic , perhaps gravy granules!
Thanks...but it didnt let me to fall asleep😂
..
mew streak
alpha wolf
sigma
rizz
gyat rizzler
dior sauvage
ohio
skibidi toilet
baby gronk
quandale dingle
fanum tax
skibidi
I have shared it with all my freind
Please make more videos
Excellent demonstration
What is the Liquid in bird?
i can never thank you enough for these vids
you need a nobel prize for teaching better than all of the teachers i have ever had.
wow, thats so sigma
Cameraman needs an award for putting cam in the top of burning Magnesium ribbon
Thanks so much to your old student Maria Gomes for showing me this youtube channel! This is going to help so much.
I love you
Lmao, what did you smoke
You are an amazing person Mr. Thornley!!! I WILL DEFINITELY USE THESE NEXT YEAR WE'RE DOING STOICHIOMETRY RIGHT NOW AND IT IS A FEVER DREAM YOUR VIDEOS ARE SO HELPFUL!!!!!
WOW I LOVE YOU
Why is it important to determine how many oxidation states an element has; what conclusions does it tell?
thank you!
❤❤❤❤
Thank you SO DAMN much to clear my doubt-right at the end thank you so much,you have no idea how much you've helped me.
Hello Mr Thornley, I wanted to give you a late but very well deserved thank you. I took Chemistry HL and finished the IB in 2022. During the DP I barely understood anything. As the final exams approached I found your channel. For the first time I was able to keep up; the videos were informative, in-depth, and entertaining. I binged all your videos and followed your advice. I went from getting 4s and hating chemistry to passing with a 6 and liking chemistry. All this to say, I appreciate the thought and hard work that you put into your videos. If only all teachers were like you.
Trying to explain god thru science is ludicrous 😂
Great stuff. I just so happen to be doing the esters lab today. I'll show this video.
Well explain son of a fraud science expose 😅😅😅😅😅😅😅
LOVED IT !