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ap chemistry - moles & molar mass

originally streamed in 2020 with Dylan BlackStudent
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Learn how to calculate moles and molar mass in AP Chemistry with step-by-step explanations. This video covers Avogadro's number, dimensional analysis, and percent composition so you can solve stoichiometry problems with confidence on your AP exam. P ...more

covered in this stream

units
Unit 1 – Atomic Structure & Properties
topics
1.1 Moles and Molar MassMoles and Molar Mass1.3 Elemental Composition of Pure SubstancesMoles and Molar Mass - Slides

timestamps

  • 0:00

    Introduction to Moles

  • 0:31

    Applying Moles in Chemistry

  • 1:03

    Definition of Mole

  • 2:04

    Avogadro's Number Explained

  • 3:06

    Mole vs Dozen Analogy

  • 4:40

    Dimensional Analysis Review

  • 5:41

    Moles to Atoms Conversion

  • 7:14

    Practice: Iron Atoms Calculation

  • 8:47

    Practice: Zinc Atoms Calculation

  • 9:50

    Atoms to Moles Conversion

  • 11:23

    Molar Mass Introduction

  • 12:57

    Molar Mass Units

  • 13:29

    Finding Molar Mass

  • 14:32

    Practice: Gold Molar Mass

  • 16:38

    Molar Mass of Molecules

  • 18:15

    Practice: Sodium Nitrate

  • 19:19

    Grams to Moles Conversion

  • 20:53

    Practice: Grams of Iron

  • 22:26

    Practice: Chloride in Copper Chloride

  • 25:32

    Q&A Session Begins

  • 26:04

    Question: Hydrogen Atoms in H2O

  • 27:37

    Conversion Steps Explained

  • 30:44

    Using Avogadro's Number

  • 35:25

    Percent Composition Introduction

  • 36:58

    Practice: Calcium Oxide

  • 41:06

    Practice: H2O by Mole

  • 43:43

    Mole Composition Details

  • 47:53

    Percent by Mass in H2O

  • 53:32

    Wrapping Up and Resources

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Company

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Resources

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🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.