Tyler DeWitt
Tyler DeWitt
  • Видео 224
  • Просмотров 146 952 891
Mole Fraction Introduction
This video is an introduction to mole fraction. Mole fraction is one of the ways that we can describe or measure the concentration of different components in a mixture. It is calculated by dividing the moles of the component of interest by the total number of moles in the mixture. This video is for students in both high school and college/university. It will also be helpful to people who are preparing for the following curricula and exams: AP, SAT, IB, A-levels, O-levels, IGCSE, ICSE, CBSE, MCAT, DAT, OAT, JEE, NEET
Просмотров: 11 551

Видео

Molarity: A Deeper Understanding
Просмотров 18 тыс.3 месяца назад
Most students can work through the math formula for molarity (M), but they don't really understand what they're doing, or why they're doing. In many cases, students can't really explain what molarity is or what it means. Molarity is defined as moles per liter, and this information is very helpful actually understanding how to rearrange the equation, and solve problems in a way that makes sense....
Mole Fraction Practice Problems
Просмотров 9 тыс.3 месяца назад
Here, we work through two practice problems involving mole fraction. Mole fraction is calculation that is used to determine the concentration of components in a mixture. The number of moles of a certain component is divided by the total number of moles in the mixture. When the numbers are not given in moles, you first have to convert from gams to moles by using the molar mass. This video will b...
TEAS 7 Chemistry: Electrons and Ions
Просмотров 16 тыс.5 месяцев назад
TEAS Chemistry in One Day Full Course: www.teasinoneday.com This video for the TEAS Chemistry section covers electrons and ions. We look at how the positive charges of protons and the negative charges of electrons can cancel each other out, creating a net charge for an atom. We learn how to determine the number of protons and electrons in ions with different net charges, and what creates an ato...
TEAS 7 Chemistry: Protons and Atomic Number
Просмотров 11 тыс.7 месяцев назад
For my full course on the Chemistry section for the ATI TEAS 7: www.teasinoneday.com/welcome This video is specifically for people who are preparing the ATI TEAS 7 exam. We cover all of the Chemistry that you'll need to know for the TEAS exam. Here, we talk about protons and atomic number, which are two very important things for understanding atoms. The number of protons or the atomic number de...
AP Chemistry: How to Work Smarter, Not Harder
Просмотров 14 тыс.7 месяцев назад
For free AP® Chemistry resources: www.tdwscience.com/apchem AP Chemistry can be very challenging, but students often take the wrong approach. They take a brute force approach, give up hours of sleep, and practically cry blood. Instead, the AP Chemistry exam rewards students who take an approach that is "smarter, not harder." Students tend to do best on the AP Chemistry exam when the work to und...
TEAS 7 Chemistry: Introduction to Atoms
Просмотров 18 тыс.7 месяцев назад
Check out the full TEAS Chemistry course and resources at: www.teasinoneday.com/welcome This is a video about atoms and atomic structure that is specifically for people who are taking the TEAS exam. We cover all of the relevant information that is most important for the TEAS 7 Chemistry section, such as atoms, elements, and subatomic particles (protons, neutrons, and electrons) along with their...
Introduction to the AP Chemistry Multiple Choice Questions (MCQ's)
Просмотров 20 тыс.9 месяцев назад
Students often say that the multiple choice questions (MCQ's) are the hardest part of the AP Chemistry test. And they really are tricky. The MCQ's are different from the sort of multiple choice questions that show up on most other types of exams, and they test multiple concepts at the same time. They also require some math skills and puzzle solving. Here, we work through a bunch of AP Chemistry...
Ionization Energy and the Photoelectric Effect (AP Chemistry)
Просмотров 10 тыс.11 месяцев назад
This is an AP Chemistry multiple choice question (MCQ) focusing on ionization energy and the photoelectric effect. During the photoelectron effect, a photo hits an atom and ejects an electron. Based on the kinetic energy of the electron, it possible to determine characteristics about the electron's location. The question also asks about electron orbitals, shielding, kinetic energy, ionization e...
Acid Conjugate Base Multiple Choice Question (AP Chemistry)
Просмотров 12 тыс.11 месяцев назад
Acids and conjugate bases classify compounds based on whether they accept or donor protons (H ions). Acids donate or give up a proton or H ion, and bases accept a proton of H ion. This classification is known as the Bronsted Lowry theory of acids and bases. Compounds can be classified as acids and conjugate bases, as well as bases and conjugate acids. Often, we need to identify the acid/conjuga...
Delta G, Delta H, and Delta S Problem (AP Chemistry)
Просмотров 7 тыс.11 месяцев назад
Delta G (Gibbs Free Energy), Delta H (Enthalpy), and Delta S (Entropy) define whether a reaction will be thermodynamically favorable or thermodynamically unfavorable. These terms are often also referred to as "spontaneous" or "non-spontaneous." This is a multiple choice question (MCQ) that is specifically designed to prepare for the AP Chemistry test, but may also be relevant for other exams an...
Entropy and Reactions Problem (AP Chemistry)
Просмотров 7 тыс.Год назад
This is an AP Chemistry-style multiple choice question (MCQ) focusing on entropy (delta S) and reactions. We have to determine which reaction illustrates the least increase in entropy. Entropy measures the amount of disorder in a system. In order to figure this problem out, we need to keep two essential entropy trends in mind: entropy increases as we transition from solid to liquid to gas. Entr...
Dilutions and Lab Procedure (AP Chemistry)
Просмотров 6 тыс.Год назад
This AP Chemistry multiple choice question (MCQ) video focuses on dilutions and lab procedure. These are common topics on the AP Chemistry exam. First, you need to dilute a stock solution to produce a working solution. This requires using the dilution equation, M1V1 = M2V2. There are common mistakes that students often make, and the answer choices are designed to try to trick and trap you. Then...
Kinetics and Reaction Rates (AP Chemistry)
Просмотров 8 тыс.Год назад
Here, we work through an AP Chemistry multiple choice question (MCQ) that focuses on kinetics and reaction rates. Specifically, we look at the method of initial rates, where we look at how the initial concentration of a reactant changes, and see what effect that has on the rate of the reaction. There are a number of different ways to solve a problem like this: we will look at a logic-based appr...
Solubility Curves and Practice Problems
Просмотров 67 тыс.Год назад
Here, we look at solubility curves. We see what they mean, how to read them, and how to answer questions using them. We begin with an overview of solutes, solvents, solutions, and solubility, and then look at general trends for solubility and temperature. Then, we look at the process for reading a solubility curve to determine solubilities and different temperatures, and vice versa. Then, we lo...
Electroplating Calculations (AP Chemistry)
Просмотров 6 тыс.Год назад
Electroplating Calculations (AP Chemistry)
Intermolecular Forces and Boiling Point (AP Chemistry)
Просмотров 27 тыс.Год назад
Intermolecular Forces and Boiling Point (AP Chemistry)
States of Matter (Phases of Matter): Solids, Liquids, and Gases
Просмотров 45 тыс.Год назад
States of Matter (Phases of Matter): Solids, Liquids, and Gases
Calculating Molarity (Silent Movie Style)
Просмотров 33 тыс.Год назад
Calculating Molarity (Silent Movie Style)
Radioactive Decay Calculations Practice Problem
Просмотров 37 тыс.Год назад
Radioactive Decay Calculations Practice Problem
AP® Chemistry: Bonding, Hybridization, Intermolecular Forces, Enthalpy
Просмотров 81 тыс.2 года назад
AP® Chemistry: Bonding, Hybridization, Intermolecular Forces, Enthalpy
AP® Chemistry Kinetics Questions Free Response
Просмотров 27 тыс.2 года назад
AP® Chemistry Kinetics Questions Free Response
AP® Chemistry Weak Acid Equilibrium Questions
Просмотров 39 тыс.2 года назад
AP® Chemistry Weak Acid Equilibrium Questions
AP® Chemistry Multiple Choice Practice Problems
Просмотров 111 тыс.2 года назад
AP® Chemistry Multiple Choice Practice Problems
New Content for AP® Chemistry!
Просмотров 28 тыс.2 года назад
New Content for AP® Chemistry!
Unsaturated, Saturated, and Supersaturated Solutions
Просмотров 176 тыс.3 года назад
Unsaturated, Saturated, and Supersaturated Solutions
Colloids
Просмотров 182 тыс.3 года назад
Colloids
Rate of Dissolving and Factors that Affect It
Просмотров 74 тыс.3 года назад
Rate of Dissolving and Factors that Affect It
Pressure and Gas Solubility (Henry's Law)
Просмотров 78 тыс.3 года назад
Pressure and Gas Solubility (Henry's Law)
Temperature and Solubility: Solids and Gases
Просмотров 100 тыс.3 года назад
Temperature and Solubility: Solids and Gases

Комментарии

  • @thomasvarghese1124
    @thomasvarghese1124 День назад

    Tyler is an excellent teacher, who can stretch out his imagination to explain abstract scientific concepts in a very simple manner. Thank you Tyler ; you are an asset to students who are learning from RUclips.

  • @FlowerWhite-dy8fg
    @FlowerWhite-dy8fg День назад

    you changed my life brother

  • @chinh101
    @chinh101 День назад

    I learned this 31 years ago, knowing all the rules enough to get an 'A', yet I dont know why until now. LOL!!!!!! Thanks Teach!

  • @WizOWash
    @WizOWash День назад

    If only someone had broken it down and explained it to Me when I was a kid I would have LOVED chemistry! THANK YOUYOU!!!

  • @ElisPQ
    @ElisPQ День назад

    @tdewitt451 Thank you hardly touches what needs to be said to you. As a teacher, I commend you for taking the time to go through every single step of figuring out each of these and explaining it over and over so very clearly. I was struggling until I watched your video - now it all works. It's surprising to me how simple this concept is, but how cloudy other teachers can make it. I appreciate your clarity and not making it more difficult than it needs to be. I hope I can teach it as well as you do when I get up in front of one of my first chemistry classes! Thankfully, I'll have a little while before I need to do that - and I'll be practicing between now and then! If you have any suggestions for new teachers to make concepts like these clearer and easier, please let me know!

  • @sansparkle
    @sansparkle День назад

    He literally saved my life

  • @Kiwidona
    @Kiwidona День назад

    god has a special place in heaven for you

  • @livmilesparanormalromanceb6891
    @livmilesparanormalromanceb6891 День назад

    This was such a wonderfully concise, easy to understand video! Thank youuuu 🙏

  • @sleepykurii
    @sleepykurii День назад

    the love I have for this man <333333

  • @adityaraja-jr4or
    @adityaraja-jr4or День назад

    am very happy with your video and when i will be done with this video i will be fucking genius

  • @rameshwargodaraa
    @rameshwargodaraa День назад

    What about hcl ,how it dissociats in water and form ions even though it's a covalent compound

  • @maliazin7546
    @maliazin7546 2 дня назад

    I HATE CHEMISTRY GRGRGRG... I'LL BE TAKING UPCAT THIS AUGUST AND ARGHHHHH HOW CAN I SOLVE THIS WITHOUT A CALCULATOR?! HUH!?!!

  • @ansh_315
    @ansh_315 2 дня назад

    after 11 years this video is still pretty relevant ngl

  • @NockseeGee_
    @NockseeGee_ 2 дня назад

    Wow 👏👏👏👏

  • @AndrewLoesch-zh6yk
    @AndrewLoesch-zh6yk 2 дня назад

    I’m preparing for high school and I forgot how to balance equations but after watching this I know how to balance

  • @vera-oi6rp
    @vera-oi6rp 2 дня назад

    You’re nothing but the best ❤❤

  • @SnehalSingh-gr8fj
    @SnehalSingh-gr8fj 2 дня назад

    Ok i got the best channel for This chapter thanku god 🙏💖

  • @aslassin
    @aslassin 2 дня назад

    Reductor does not gain electrons, I think you confused this or I could have just interpeted this wrong 😂

  • @solianashow3315
    @solianashow3315 2 дня назад

    Anyone here 2025

  • @Jim_96504
    @Jim_96504 2 дня назад

    Wow!!

  • @xiloxd
    @xiloxd 2 дня назад

    very helpful tysm

  • @seen9248
    @seen9248 2 дня назад

    Holy this is helpful

  • @portreemathstutor
    @portreemathstutor 2 дня назад

    21 zeroes after the number is a heptillion or a sextillion according to Google. Numbers names changed recently trillions changed into billions and the whole system got confused. It is still a great video though.

  • @WhoRhian
    @WhoRhian 3 дня назад

    PLS TYLER COMEBACK

  • @WhoRhian
    @WhoRhian 3 дня назад

    be m y teacher pls

  • @johncodeinaire137
    @johncodeinaire137 3 дня назад

    Great explanation. I was with you up until the talk about the electrons being smaller than atoms. How were they able to make that assumption?

  • @sherylfajardo7485
    @sherylfajardo7485 3 дня назад

    I was struggling and didn't understand how it works when I watched this video. Thank you!

  • @freddykambata421
    @freddykambata421 3 дня назад

    Why didnt we directly write it as H + Cl = HCL

  • @kirstenlegaspi2471
    @kirstenlegaspi2471 3 дня назад

    He makes everything easy

  • @user-gb6wb8lk7i
    @user-gb6wb8lk7i 3 дня назад

    I love you and watch your videos after 9 and 12 years , this is sooo crazy😂!!! and I don’t know even if you still on RUclips and if you will read my comment or not , you really really helped me I just want to say thank uuuuu🥹🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍🤍

  • @Thechillbrother-xj4ul
    @Thechillbrother-xj4ul 3 дня назад

    "Thank you. This really helped me better than my teacher's explanation."

  • @Standforthetruth18
    @Standforthetruth18 3 дня назад

    I scanned the QR code in my book and reached here. I'm not going backkkkkk! This is too good 🤩

    • @tdewitt451
      @tdewitt451 3 дня назад

      What book is that?!? I had no idea my video was in a book!

  • @midulamahjabin9470
    @midulamahjabin9470 3 дня назад

    Thanks!!!

  • @tethpheak6745
    @tethpheak6745 3 дня назад

    Wow! Thank you so much!! It is very helpful video for me.

  • @mbleahh
    @mbleahh 4 дня назад

    Thank you so much man

  • @user-et6qh3bo5b
    @user-et6qh3bo5b 4 дня назад

    You are the best

  • @tadikondaamruthavalli5969
    @tadikondaamruthavalli5969 4 дня назад

    1:49 bro went out of context

  • @KA_6859
    @KA_6859 4 дня назад

    I keep getting confused by the coefficients and subscripts. Why isn't the multiplied oxidation number always the oxidation number? Like 2NO. O=-2 and not -4, but, N = +4 to equal 0. My brain wants to make O=-4 and not -2.

  • @Gayathripulla2008
    @Gayathripulla2008 4 дня назад

    YOU. ARE. AMAZZIIINNGGG!

  • @diegoguatemala5287
    @diegoguatemala5287 5 дней назад

    One of the best videos I have ever seen in my life

  • @qwertasd9705
    @qwertasd9705 5 дней назад

    Thanks for your effort and for your excellent explanation ❤❤❤

  • @noahrasmus7612
    @noahrasmus7612 5 дней назад

    i dont get why they have different number of protons than electrons. I assumed we started with neutral charged atoms which means they have same protons as electrons right? so in NH4+ how did you know there were only 10 electrons if there are 11 protons?

  • @ljs.3139
    @ljs.3139 5 дней назад

    Dont think he explained why Copper has a stronger pull of electrons than zinc. Anyone knows why?

  • @rickstarr7855
    @rickstarr7855 5 дней назад

    I have a chemistry test in an hour and I’m here learning what limiting reagents are.

  • @PandaQManda
    @PandaQManda 5 дней назад

    Isn't the first example butene not ethene?

  • @elberethreviewer5558
    @elberethreviewer5558 5 дней назад

    This video should get much more play than it does. It's one of the better ones on this subject on RUclips. The other ones I found were more like watching people do their homework.

  • @vipergameing308
    @vipergameing308 5 дней назад

    Best teacher so far for me 😊

  • @user-wr8md1hx4z
    @user-wr8md1hx4z 5 дней назад

    Who's here in 2024 😂 Then 1 year later some one will say who's here in 2025 😂❤

  • @KwameBobieAnsa
    @KwameBobieAnsa 5 дней назад

    I have a regents in 30 minutes

  • @AjanKarikkad
    @AjanKarikkad 5 дней назад

    this is more clear than any 3d animations or presentation