Gas Laws II — Harder Problems | Combined Gas Law, Dalton’s Law, Ideal Gas Law, Stoichiometry-Chem 11

Here is a Total Review Quiz of all Gas Laws: https://1drv.ms/w/c/2713457aa143ce7f/... Gas Laws Part 2 — Harder Problems | Combined Gas Law, Dalton’s Law, Ideal Gas Law, Gas Stoichiometry (Chem 11) In this Chemistry 11 lesson from the MathSupport channel, ‪@mathsupportnow‬ , we tackle advanced gas‑law problems step‑by‑step. You’ll learn how to choose the correct gas law, solve multi‑variable problems, work with gases collected over water, use the Ideal Gas Law to find molar mass, and complete full gas stoichiometry questions. Perfect for Chemistry 11 students preparing for quizzes, unit tests, and final exams. ✅What You’ll Learn in This Video 🔹 1. Choosing the Correct Gas Law When to use Boyle’s, Charles’, Gay‑Lussac’s, Combined Gas Law, Ideal Gas Law How to identify the missing variable How to convert Celsius → Kelvin (required for all gas laws) 🔹 2. Multi‑Variable Gas Problems Solving for final pressure Solving for final volume Solving for temperature changes Rearranging the Combined Gas Law correctly 🔹 3. Dalton’s Law of Partial Pressures Total pressure = sum of individual gas pressures How to find dry gas pressure when gas is collected over water Using vapor pressure tables correctly 🔹 4. Ideal Gas Law Applications Using 𝑃𝑉=𝑛𝑅𝑇 Solving for moles Solving for molar mass Correct units for R (kPa·L / mol·K) 🔹 5. Full Gas Stoichiometry (Hardest Section) Converting mass → moles Using mole ratios from balanced equations Finding moles of gas produced Using Ideal Gas Law to find volume Combining Dalton’s Law + Ideal Gas Law in one problem 00:00 – Introduction 00:05 – What we will cover 00:29 – Review of gas laws 01:14 – Example 1: Combined Gas Law (final pressure) 02:51 – Converting Celsius to Kelvin 03:26 – Solving for 𝑃2 04:28 – Final answer 04:48 – Example 2: Dalton’s Law (gas over water) 05:48 – Finding dry hydrogen pressure 06:15 – Example 3: Ideal Gas Law (molar mass) 06:52 – Converting temperature to Kelvin 07:05 – Using 𝑃𝑉=𝑛𝑅𝑇 07:38 – Finding moles 07:47 – Finding molar mass 08:22 – Example 4: Gas stoichiometry (Mg + HCl → H₂) 09:06 – Converting mass → moles 09:52 – Mole ratio (1:1) 10:08 – Dalton’s Law for dry H₂ 12:01 – Ideal Gas Law for volume 13:29 – Final answer 13:44 – Summary and closing This video is ideal for: 🎯 Chemistry 11 students 🎯 Gas Laws unit 🎯 Stoichiometry with gases 🎯 Students preparing for final exams 🎯 Anyone needing step‑by‑step gas‑law examples 👍 Like if this helped you 🔔 Subscribe for more Chem 11 lessons 💬 Comment with topics you want next 📤 Share with classmates or study groups #gaslaws #chemistry11 #daltonslaw #combinedgaslaw #idealgaslaw #gasstoichiometry #mathsupport