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PODCAST

CHEMDUNN

The podcast that brings your chemistry textbook to life through lively conversations! Our dynamic hosts break down complex topics and concepts into relatable, everyday terms, making learning chemistry accessible and enjoyable for everyone—especially for those that are needing to ace that next exam. Each episode features insightful discussions about common core topics in the typical chemistry curriculum. Say goodbye to monotonous lectures. Get ready to laugh, learn, and ... maybe ... enjoy

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All Episodes

00:10:16

Topic: Ideal Gas Law

CHEMDUNN ·

2025/09/18

This episode explains the Ideal Gas Law as a universal equation that combines all the individual gas laws. It introduces the equation's components—pressure (P), volume (V), moles (n), the universal gas constant (R), and absolute temperature (T) in Kelvin—and emphasize the importance of using the correct units for R. The episode outlines a systematic approach for solving problems and provides examples for calculating volume, pressure, temperature, and moles. It also demonstrates how to use the

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00:10:47

Topic: Gas Laws (Part 2)

CHEMDUNN ·

2025/09/17

This episode explains three additional gas laws including the unifying Combined Gas Law. It first introduces Gay-Lussac's Law, which states that pressure is directly proportional to absolute temperature at constant volume. Next, it covers Avogadro's Law, which describes the direct relationship between a gas's volume and the number of moles. The episode then introduces the Combined Gas Law, a powerful tool for solving problems where multiple variables change simultaneously. It concludes

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00:10:47

Topic: Gas Laws (Part 1)

CHEMDUNN ·

2025/09/16

This episode explains two fundamental gas laws: Boyle's Law and Charles's Law. It explains that Boyle's Law describes the inverse relationship between pressure and volume at constant temperature, using a scuba diving example to illustrate how an increase in pressure causes a decrease in volume. Charles's Law describes the direct relationship between a gas's volume and its absolute temperature in Kelvin, emphasizing that temperature must be in Kelvin for the math to work. The

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00:10:00

Topic: Solution Stoichiometry

CHEMDUNN ·

2025/09/16

This episode explains how to perform solution stoichiometry using molarity as the key conversion factor. It breaks down the process into a simple flow: use molarity to convert solution volume to moles, apply the mole ratio from the balanced equation, and then convert to the final requested units. It provides examples, including a limiting reactant problem, and highlight common mistakes such as forgetting to convert milliliters to liters. It concludes by emphasizing that solution stoichiometry uses

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00:10:50

Topic: Gas Stoichiometry (Non-Standard Conditions)

CHEMDUNN ·

2025/09/15

This episode explains how to perform non-STP gas stoichiometry using the Ideal Gas Law (PV=nRT). It emphasizes that this method is crucial for real-world applications where gases are not at standard conditions, rendering the 22.4 L/mol conversion factor invalid. The episode demonstrates how to use the Ideal Gas Law to convert gas volumes to moles and vice versa, even in problems involving mixed conditions or different phases.

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00:09:15

Topic: Gas Stoichiometry at STP

CHEMDUNN ·

2025/09/15

This episode explains how to use gas stoichiometry at Standard Temperature and Pressure (STP). It defines STP as 0°C and 1 atm, where one mole of any ideal gas occupies 22.4 liters. The episode demonstrates how this value serves as a key conversion factor for solving stoichiometry problems, allowing you to convert between gas volumes and moles. It works through examples, including a limiting reactant problem, and emphasizes that this shortcut only applies at STP.

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00:10:08

Topic: Excess Reactants

CHEMDUNN ·

2025/09/15

This episode explains how to calculate excess reactants, which is the amount of unreacted substance left over after a chemical reaction. It emphasizes that you must first identify the limiting reactant, the substance that gets completely consumed. It outlines two methods for calculating the excess amount: either by determining how much of the excess reactant is consumed and subtracting that from the initial amount, or by calculating the required amount and subtracting that from the available amount

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00:10:18

Topic: Limiting Reactant

CHEMDUNN ·

2025/09/15

In this episode the concept of limiting reactants is explained, which determines the maximum amount of product that can be formed in a chemical reaction. Using a sandwich analogy, it defines the limiting reactant as the substance that runs out first. It outlines a method for identifying it: calculate the potential product yield for each reactant, and the one that yields the least product is the limiting reactant. All subsequent calculations for product yield or remaining excess reactants must be

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00:10:38

Topic: Stoichiometry (Using BCA Tables)

CHEMDUNN ·

2025/09/15

This episode is the final episode in the introduction to stoichiometry series. It introduces BCA tables (Before, Change, After) as an alternative, visual method for solving stoichiometry problems. It explains that this table format helps track the quantities of all substances in a reaction simultaneously. The hosts guide through the three rows of the table: the "Before" row for initial amounts, the "Change" row for how quantities are consumed or produced using mole ratios, and

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00:10:01

Topic: Stoichiometry (Gram-to-Gram)

CHEMDUNN ·

2025/09/15

This episode focuses on gram-to-gram stoichiometry, a practical skill for converting between the masses of different substances in a chemical reaction. They explain a three-step process: convert the given mass to moles using molar mass, use the mole ratio from the balanced equation to find the moles of the desired substance, and then convert those moles back to grams. It emphasizes that moles are the crucial intermediate step, acting as a bridge between reactants and products. The episode provides

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00:09:12

Topic: Stoichiometry (Mole-to-Mole Conversion)

CHEMDUNN ·

2025/09/14

This episode introduces stoichiometry, the calculation of quantities in chemical reactions. This is part 1 in a 3 episode series. This first episode explains that the mole ratios from a balanced chemical equation are the key to all calculations. Using dimensional analysis, it demonstrates how to perform mole-to-mole conversions, emphasizing that unit cancellation ensures the correct setup. It works through several examples and also shows how to work backward from a desired product amount to find the

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00:09:13

Topic: Percent Yield and Percent Error

CHEMDUNN ·

2025/09/14

This episode simplifies the concepts of percent yield and percent error. It explains that percent yield measures the efficiency of a chemical reaction by comparing the actual amount of product obtained to the theoretical amount calculated from stoichiometry. It discusses factors that can cause yields to be less than 100%, such as side reactions or material loss. Percent error, on the other hand, measures the accuracy of a lab measurement by comparing an experimental value to an accepted value. The

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00:09:05

Topic: Double Displacement Reactions

CHEMDUNN ·

2025/09/13

This episode explains that double displacement reactions involve two compounds trading ions, following the pattern AB + CD → AD + CB. These reactions require a driving force to occur, such as the formation of a precipitate (an insoluble solid), a gas, or water. For instance, reacting silver nitrate with sodium chloride produces a precipitate, while an acid-base reaction creates water. It emphasizes the importance of checking for a driving force and correctly balancing the charges of the new

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00:09:13

Topic: Single Replacement Reaction

CHEMDUNN ·

2025/09/13

This episode explains that single replacement reactions involve one element replacing another in a compound, following the pattern A + BC → AC + B. The outcome is determined by the activity series, a ranking of elements by reactivity. A more reactive element will displace a less reactive one. It uses examples like zinc and copper sulfate to illustrate a successful reaction and copper and zinc sulfate to demonstrate when no reaction occurs.

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00:06:15

Topic: Types of Reactions

CHEMDUNN ·

2025/09/13

In this episode, the five main types of chemical reactions are explained as a way to predict chemical behavior. A synthesis reaction combines two or more reactants into one product, while decomposition is the reverse, breaking one reactant into multiple products. Single replacement involves one element replacing another in a compound, whereas double replacement is where two compounds trade ions. Lastly, a combustion reaction typically involves a hydrocarbon reacting with oxygen to produce carbon

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00:07:07

Topic: Balancing Chemical Equations

CHEMDUNN ·

2025/09/13

This episode explains that balancing chemical equations is crucial because it upholds the Law of Conservation of Mass, ensuring the same number of atoms on both sides of a reaction. The process involves only changing coefficients, the numbers in front of chemical formulas, never the subscripts. It provides a four-step method: count atoms, start with the most complex molecule, adjust coefficients, and then check all elements. The episode offers examples for various reaction types and concludes with a

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00:10:54

Topic: Avogadro's Number

CHEMDUNN ·

2025/09/12

This episode discusses Avogadro's number, which represents the number of particles in one mole. It explains that this number is the key to converting between the number of particles and a substance's mass. The episode details a two-step conversion process: using molar mass to convert mass to moles, and then using Avogadro's number to convert moles to particles. The episode emphasizes using dimensional analysis correctly and understanding the difference between molecules and formula

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00:09:18

Topic: Empirical Formula

CHEMDUNN ·

2025/09/12

This episode explains how to find a compound's empirical formula—the simplest whole-number ratio of its elements. It presents a four-step method: (1) convert mass or mass percent to moles, (2) divide all mole values by the smallest number, (3) convert the resulting ratios to whole numbers, and (4) write the formula. The episode demonstrates how this process works for both simple and hydrated compounds and explain how to use the empirical formula to determine the molecular formula if the molar

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00:09:45

Topic: Combustion Analysis

CHEMDUNN ·

2025/09/12

This episode discusses combustion analysis, a method for determining an organic compound's empirical formula by burning it completely and analyzing the products. They explain that all the carbon becomes CO2 and all the hydrogen goes into the H2O produced, which allows for the original masses of these elements to be calculated from the product masses. The episode outlines a four-step process: measure the masses of the products, use stoichiometry to find the masses of carbon and hydrogen, find

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00:09:22

Topic: Mass Percent

CHEMDUNN ·

2025/09/11

This episode discusses mass percent, a way to express the mass contribution of each element in a compound. It defines it with the formula: (mass of the element / total mass of the compound) x 100%. The episode provides a step-by-step guide on how to calculate mass percent, using examples like H₂O, CO₂, and more complex compounds. It highlights that mass percent shows the actual mass contribution of each element, which can be counterintuitive, and advise students to always check that their final

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116 results

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