demonstration of exothermic and endothermic reactions Mireille Tannous 2018-01-10 | exothermic reactions are the ones that release energy to the surroundings. during these kind of reactions the temperature increases and the container where the reaction is taking place becomes very hot. On the contrary, endothermic reactions have to absorb heat from the surroundings to start, during these kind of reactions the temperature decreases and the container where the reaction is taking place becomes very cold.experiment 1: barium hydroxide + ammonium chlorideexperiment 2: calcium carbonate + sulfuric acid
Pauli Exclusion principle - Hunds rule - Aufbau principle: How electrons occupy orbitals Mireille Tannous 2022-07-09 | In this video tutorial I am explaining how the electrons are distributed in the orbitals following Pauli Exclusion principle, Hund's rule, and Aufbau principle.other related videos:The orbital diagram notation: youtu.be/Jyhou1Qb84MThe noble gas notation: youtu.be/mynbXhNbpEUThe electron configuration: youtu.be/s5rz9qCGCx4The shape of orbitals s, p, d, f: youtu.be/DBC-mmFwx6EThe Quantum numbers and AP chemistry practice: youtu.be/Dkea3w9Kf10The photoelectric effect: youtu.be/fkYrUjnHF_s
the photoeletric effect - AP chemistry Mireille Tannous 2022-07-05 | this video explains the experiment that proved the dual nature of light. it was known that light has a wave nature. but that is not the complete truth, Albert Einstein explained the result of the photoelectric effect and was able to prove that light also behaves like a particle.(To clarify: at the time 9min 57s i meant to say electron and not proton)phet colorado simulation: https://phet.colorado.edu/sims/cheerpj/photoelectric/latest/photoelectric.html?simulation=photoelectricother related video:The orbital diagram notation: youtu.be/Jyhou1Qb84MThe noble gas notation: youtu.be/mynbXhNbpEUThe electron configuration: youtu.be/s5rz9qCGCx4The shape of orbitals s, p, d, f: youtu.be/DBC-mmFwx6EThe Quantum numbers and AP chemistry practice: youtu.be/Dkea3w9Kf10Pauli exclusion principle - Hund's rule - Aufbau principle: youtu.be/vaXGMWASjEs
The Quantum numbers and AP chemistry practice Mireille Tannous 2022-07-05 | This video tutorial gives a simple and brief explanation to the four quantum numbers: n, l, ml and ms. the topic of quantum number is targeted in the AP chemistry.Other related videos: The orbital diagram notation: youtu.be/Jyhou1Qb84MThe noble gas notation: youtu.be/mynbXhNbpEUThe electron configuration: youtu.be/s5rz9qCGCx4The shape of orbitals s, p, d, f: youtu.be/DBC-mmFwx6EThe photoelectric effect - AP chemistry: youtu.be/fkYrUjnHF_s
The orbital diagram notation - AP chemistry Mireille Tannous 2022-07-04 | This video gives you a very simple way to draw the orbital diagram of any element found in the periodic table.other related videos: The Electron Configuration: youtu.be/s5rz9qCGCx4The noble gas notation: youtu.be/mynbXhNbpEUThe shape of s, p, d, and f orbitals 3D view: youtu.be/DBC-mmFwx6EThe four Quantum numbers explained: youtu.be/Dkea3w9Kf10The photoelectric effect - AP chemistry: youtu.be/fkYrUjnHF_sPauli exclusion principle - Hund's rule - Aufbau principle: youtu.be/vaXGMWASjEs
noble gas notation - AP chemistry Mireille Tannous 2022-07-04 | This video gives you a very simple way to write the abbreviated form of the electron configuration known as noble gas notation of any element found in the periodic table.other related videos: The Electron Configuration: youtu.be/s5rz9qCGCx4The orbital diagram: youtu.be/Jyhou1Qb84MThe shape of s, p, d, and f orbitals 3D view: youtu.be/DBC-mmFwx6EThe four Quantum numbers explained: youtu.be/Dkea3w9Kf10The photoelectric effect - AP chemistry: youtu.be/fkYrUjnHF_sPauli exclusion principle - Hund's rule - Aufbau principle: youtu.be/vaXGMWASjEs
The Electron Configuration - AP chemistry Mireille Tannous 2022-07-04 | This video gives you a very simple way to write the electron configuration of any element found in the periodic table.Other related videos: The noble gas notation: youtu.be/mynbXhNbpEUThe orbital diagram: youtu.be/Jyhou1Qb84MThe shape of s, p, d, and f orbitals 3D view: youtu.be/DBC-mmFwx6EThe four Quantum numbers explained: youtu.be/Dkea3w9Kf10The photoelectric effect - AP chemistry: youtu.be/fkYrUjnHF_sPauli exclusion principle - Hund's rule - Aufbau principle: youtu.be/vaXGMWASjEs
Emsat Chemistry practice questions - 2022 Mireille Tannous 2022-06-28 | This video will help you study and prepare for your chemistry Emsat exam.Other related videos:emsat chemistry tutorial: youtu.be/xucVJDsIw-4 Emsat Achieve chemistry 15 solved sample questions: youtu.be/oV_RzL1cb7EEmsat chemistry practice questions - content area 1 and 2: youtu.be/prbWDftVX0AEmsat chemistry practice questions - content area 3: youtu.be/Y4O8rl8Dvfc Emsat chemistry practice questions - content area 4, 5, and 6: youtu.be/haSAyYhiWZMTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
Emsat Achieve chemistry 15 sample questions solved and explained Mireille Tannous 2022-06-28 | This video will help you study and prepare for your chemistry Emsat exam.Other related videos:emsat chemistry tutorial: youtu.be/xucVJDsIw-4 Emsat chemistry practice questions - content area 1 and 2: youtu.be/prbWDftVX0AEmsat chemistry practice questions - content area 3: youtu.be/Y4O8rl8Dvfc Emsat chemistry practice questions - content area 4, 5, and 6: youtu.be/haSAyYhiWZMEmsat Chemistry more practice questions: youtu.be/QS1UwaiO_VoTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
Emsat chemistry practice questions 2022 - content area 4, 5 and 6 Mireille Tannous 2022-06-27 | This video will help you study and prepare for your chemistry Emsat exam. I have included in this video questions targeting content area 4, 5 and 6.emsat chemistry tutorial: youtu.be/xucVJDsIw-4 Emsat chemistry 15 sample questions solved and explained: youtu.be/oV_RzL1cb7EEmsat Chemistry more practice questions: youtu.be/QS1UwaiO_VoEmsat chemistry practice questions - content area 1 and 2: youtu.be/prbWDftVX0AEmsat chemistry practice questions - content area 3: youtu.be/Y4O8rl8Dvfc To download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2019: https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public%20Test%20Specifications%20%28Eng%29.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2020:https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public_Specification_2020_ENG.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
Emsat chemistry practice questions 2022 - content area 3 Mireille Tannous 2022-06-23 | This video will help you study and prepare for your chemistry Emsat exam. I have included in this video questions targeting content area 3.emsat chemistry tutorial: youtu.be/xucVJDsIw-4 Emsat chemistry 15 sample questions solved and explained: youtu.be/oV_RzL1cb7EEmsat Chemistry more practice questions: youtu.be/QS1UwaiO_VoEmsat chemistry practice questions - content area 1 and 2: youtu.be/prbWDftVX0AEmsat chemistry practice questions - content area 4, 5, and 6: youtu.be/haSAyYhiWZMTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2019: https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public%20Test%20Specifications%20%28Eng%29.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2020:https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public_Specification_2020_ENG.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
Emsat chemistry practice questions 2022 - content area 1 and 2 Mireille Tannous 2022-06-22 | This video will help you study and prepare for your chemistry Emsat exam. I have included in this video questions targeting content area 1 and 2.emsat chemistry tutorial: youtu.be/xucVJDsIw-4 Emsat chemistry 15 sample questions solved and explained: youtu.be/oV_RzL1cb7EEmsat Chemistry more practice questions: youtu.be/QS1UwaiO_VoEmsat chemistry practice questions - content area 3: youtu.be/Y4O8rl8DvfcEmsat chemistry practice questions - content area 4, 5 and 6: youtu.be/haSAyYhiWZMTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2019: https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public%20Test%20Specifications%20%28Eng%29.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2020:https://emsat.moe.gov.ae/emsat/doc/Achieve_Chemistry_Public_Specification_2020_ENG.pdfTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
Emsat Achieve Chemistry tutorial Mireille Tannous 2022-06-21 | This video contain explanation on how to solve some questions in the chemistry sample question test.Emsat chemistry the full 15 sample questions solved and explained: youtu.be/oV_RzL1cb7EEmsat Chemistry more practice questions: youtu.be/QS1UwaiO_VoEmsat chemistry practice questions - content area 1 and 2: youtu.be/prbWDftVX0A Emsat chemistry practice questions - content area 3: youtu.be/Y4O8rl8DvfcEmsat chemistry practice questions - content area 4, 5 and 6: youtu.be/haSAyYhiWZMTo download the EmSAT Achieve Chemistry Public Test Specification (which include questions, answers and formula sheets) released in September 2021:https://emsat.moe.gov.ae/emsat/doc/Achieve%20Chemistry%20Public%20Test%20Specifications%20-%20Eng%202021%20Nov%20F.pdf
what is the difference between oxidation & reduction. What are oxidizing and reducing agents Mireille Tannous 2022-06-16 | this video tutorial explains briefly how to recognize the oxidation and reduction in a redox reaction.also after knowing which one got reduced and which species got oxidized we can name them as oxidizing agent and reducing agent respectively.
Steps to prepare solutions with specific concentration Mireille Tannous 2022-06-09 | In this video you will be looking at the different steps on how to prepare solutions with different concentrations/ molarities. to know how to do this and the steps followed watch the video
Using stoichiometry in calculating reaction amounts Mireille Tannous 2022-06-09 | a reaction between two solutions sometimes lead to the formation of a solid precipitate. we can use stoichiometry to calculate the amount of precipitate formed.
Calculations with molarity Mireille Tannous 2022-06-09 | using conversion factors will allow you to calculate the number of mole or how much liters of a solution is needed for a certain molarity.M = n/v
calculations for a dilute solution Mireille Tannous 2022-05-30 | If you have a concentrated stock solution and you wish to prepare a less concentrated one (diluted) this video will show you the steps and the calculations to it
Preparing a diluted solution from a concentrated one Mireille Tannous 2022-05-30 | If you have a concentrated stock solution and you wish to prepare a less concentrated one (diluted) this video will show you the steps and the calculations to it
What is molarity and how to calculate it? Mireille Tannous 2022-05-30 | This video explains in details what is a molarity concentration and how to do the calculations.
Experiment to find the formula of an unknown hydrate Mireille Tannous 2019-11-21 | The experiment describes the procedures that one needs to follow when finding how many molecules of water any hydrate contain.
Find the molar mass of gas using ideal gas law Mireille Tannous 2019-11-21 | In this experiment we used a volatile liquid which we turned to gas by immersing it in a hot bath or water. This liquid that evaporated to gas was trapped in a flask. The mass was recorded before and after forming the gas in order to know the mass of gas used.A labquest device in which we connected a pressure sensor and temperature sensor was used to determine the pressure at which the experiment was operated and the temperature at which the gas formed. To know the volume of the gas (volume of container occupied) we had to fill the flask completely with water and measure the volume of water (volume of gas to be).Finally when all was set molar mass was calculated using the ideal gas law: Molar mass = m.R.T/P.V
Orbital shape full description of s, p, d and f Mireille Tannous 2019-09-14 | A video showing the 4 orbitals in a 3d look. Full explanation and details about the angular momentum quantum number of each one.Other related videos: The electron configuration: youtu.be/s5rz9qCGCx4Noble gas notation: youtu.be/mynbXhNbpEUOrbital diagram notation: youtu.be/Jyhou1Qb84MThe four Quantum numbers explained: youtu.be/Dkea3w9Kf10
Law of conservation of mass: demonstration Mireille Tannous 2019-02-21 | A proof why chemical equations always need to be balanced. For any chemical reaction always the mass of reagents before will be equal to their mass after. In this regard, every chemical reaction written must be balanced.
Flipped classroom dipole moment to determine the percent ionic character Mireille Tannous 2018-10-22 | ...
Flipped classroom - students explaining polarity of bonds Mireille Tannous 2018-10-22 | Explaining how bonds can have partial charges and dipoles
Stoichiometry: mole to mass calculations Mireille Tannous 2018-04-23 | This video will explain to you the calculations needed to calculate the mass of a substance if the mole of another substance was given.more videos of stoichiometry:mass to mole stoichiometric calculations: youtu.be/52Xt8g4tW24mass to mass stoichiometric calculations: youtu.be/Z2PNZH-BBQULimiting and excess reagent: youtu.be/Be0a0xeutA0 calculations done to find the limiting reagent: youtu.be/edwSyb2eUtcTheoretical vs actual yield: youtu.be/50z8WHic6GQcalculations to find the percent yield: youtu.be/3by2VOHmgmYTheoretical and percent yield of an anhydrous compound: youtu.be/stPO0mk4o5cHow to identify the excess from the limiting reagent, how to calculate the theoretical yield and finally the percent yield of a chemical reaction: youtu.be/IDOOqPPaiHw
testing the presence of carbon dioxide gas Mireille Tannous 2018-04-10 | lime water is used to test the presence of carbon dioxide gas. CO2 turns lime water milky
naming carbonyls Mireille Tannous 2018-04-05 | a video tutorial explaining briefly how to name aldehyde and ketones
naming cyclic hydrocarbons Mireille Tannous 2018-04-05 | how to name cyclic alkanes, alkenes, and alkynes
naming alkenes and alkynes Mireille Tannous 2018-04-05 | an explanation on how to name the unsaturated hydrocarbons the alkenes and alkynes.
Introduction to hydrocarbons Mireille Tannous 2018-04-05 | This video introduce the aliphatic & aromatic hydrocarbons
How to differentiate between mixtures Mireille Tannous 2018-02-01 | Suspension is a heterogeneous mixture and it can be directly recognised from other mixtures simply by observing the particles settling out once we stop mixing it. The particles in a suspension are large enough to settle out. Whereas particles in a solution or colloid are not heavy to settle out neither can be filtrated. For this reason we use the Tyndall effect light to see which mixture's particles scatter light. As a result the colloid particles are large enough to scatter light while the solution particles are very small to reflect the light.
The differences between 3 types of mixtures Mireille Tannous 2018-01-30 | Suspension is a heterogeneous mixture and it can be directly recognised from other mixtures simply by observing the particles settling out once we stop mixing it. The particles in a suspension are large enough to settle out. Whereas particles in a solution or colloid are not heavy to settle out neither can be filtrated. For this reason we use the Tyndall effect light to see which mixture's particles scatter light. As a result the colloid particles are large enough to scatter light while the solution particles are very small to reflect the light.
My students explaining the difference between 3 types of mixtures Mireille Tannous 2018-01-30 | Suspension is a heterogeneous mixture and it can be directly recognised from other mixtures simply by observing the particles settling out once we stop mixing it. The particles in a suspension are large enough to settle out. Whereas particles in a solution or colloid are not heavy to settle out neither can be filtrated. For this reason we use the tyndall effect light to see which mixture's particles scatter light. As a result the colloid particles are large enough to scatter light while the solution particles are very small to reflect the light.
Molecule shapes - molecule geometry Mireille Tannous 2018-01-28 | This video tutorial describes the shapes of molecules in 3D following the VSEPR theory that is based on the maximum possible electron repulsion. The simulation is from https://phet.colorado.edu/sims/html/molecule-shapes/latest/molecule-shapes_en.htmlthe molecular shapes discussed in this video are:lineartrigonal planar and benttetrahedral, trigonal pyramidal and benttrigonal bipyramidaloctahedral
The energy stored in food: How much calories Mireille Tannous 2018-01-17 | this video describes the experimental procedure that you can do to calculate approximately the energy stored in food. how much calories.
HOT ICE - How to make it Mireille Tannous 2018-01-10 | Crystallization of sodium acetateFirst we prepare a saturated solution of sodium acetate by heating 50g of the solute in 5 ml of water. we allow the mixture to cool and then touch the mixture with anything sharp or dropping in it some crystal seeds and the crystals will quickly form
Qualitative analysis of anions Mireille Tannous 2018-01-04 | This video explains the different tests to identify the presence of anions.Other related videos:Qualitative analysis of cations by the flame test: youtu.be/LYSblvmOmfgQualitative analysis of cations by sodium hydroxide test part 1: youtu.be/F7cSlwKfoHwQualitative analysis of cations part 2: youtu.be/VAy76V4THlY
Chemistry Fun: Making coal from sugar Mireille Tannous 2018-01-04 | Sulfuric acid is a very strong acid that can act as a dehydrating agent removing H and O from sugar molecule turning it to carbon which is black coal.
