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Salt and Diet
Salt is necessary for your diet, but too much or too little and it causes health problems. These problems, as well as what salt does in your body, are the focus of a video that also looks at where salt is found in food and how much salt...
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Extraction of Salt
The three methods of extracting salt — evaporation of seawater, salt mining, and solution in water — are the focus of an informative video that includes additional interesting details, such as the fact that the word salary is...
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Solubility Rules
The rules related to solubility of salts are explained in a video that shows the solubility table that summarizes them and concludes with why this information is important to know.
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Making Insoluble Salts
Barium has many applications depending on its form: it can be poisonous, used to color fireworks, or, as in the example in this video, used as contrast in X-ray imaging. The resource that explains how to make and isolate insoluble...
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Ammonium Salts and Solutions
The importance of ammonium salt solutions is covered in a video that explains how to solve the reactions, the chemical equations, and the structure of the various ions.
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Neutralisation of Alkalis
Alkalis and how to neutralize them through titrations are the focus of a video that also explains why this process is important in a modern society.
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Titrations
Cartoon drawings demonstrate the proper way to complete a titration lab. The video includes information about the tools needed, the set up required, and the reason for multiple trials.
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Acid + Metal
What happened to the woman who was stopped for having sodium chloride and a nine-volt in her car? She was arrested for a salt and battery! Here's a video that explains how combining an acid with a metal produces a salt and water and...
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Stomach Acid
Approximately 60 million Americans suffer from acid reflux. The video explains why our stomachs have acids, how they work, and how they don't eat through the lining of our stomach. Then it explains what can happen when things go wrong,...
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Using Moles Part 3
If you are trying to make laughing gas, N2O, and you make N2O5 instead, you now have a highly dangerous chemical. So how do you control what you make when they have the same ingredients? The 14th video in a series of 29 explains how...
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Moles in Equations
Moles are so important to chemistry that Michael Offutt composed an entire musical album titled Molennium about them. The video walks through how to use moles to solve a couple of different equations. It explains each step and when you...
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Calculating Percentage Mass
More than half of your body is made of water, but what percentage of you is made up of hydrogen? This video explains how to solve for percentage mass. It uses water as one example of solving for both hydrogen and oxygen.
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Balancing Equations Part 2
Show class members how to balance equations, keeping in mind the conservation of mass, with a video demonstration that provides a few sample problems and solutions.
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Sampling Techniques
Sampling techniques scientists use, including coning and quartering, as well as aliquots, are the focus of a video that also looks at homogeneous and heterogeneous mixtures.
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Law of Conservation of Mass
New things are created all the time while others disappear, does the Law of Conservation of Mass mean your drone might be made out of dinosaurs? The 16th video in a series of 29 begins with a timeline of scientific discoveries related to...
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Percentage Yield
Theory versus reality strikes again — only this time, scholars figure how close they come to each other. Video explains how to use the numbers for theoretical yield and actual yield to determine the percentage yield of various...
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How to Measure the Loss in a Reaction
How do you measure when a gas is lost? The 20th installment in a 29-part series explains how to determine if a gas has been lost in a chemical reaction. It continues by describing how to solve for the lost mass. Finally, it offers a...
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Theoretical Yield and Losses
Theory is when you know everything, but nothing works right. Video focuses on how to find theoretical yield and why the theory doesn't work in reality. It includes a practice problem for finding the theoretical yield and concludes with...
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Using Moles Part 2
When does 2+1=2? When calculating in moles, you sometimes have calculations that appear to defy basic math. The 13th video of 29 explains the pairing and combining of molecules and how to calculate their molecular masses. It also details...
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Using Moles Part 1
One mole of a substance is equal to the molecular mass of the same substance. A video explains how to solve for the ratio of atoms to particles in a compound. It walks through a couple of example problems using moles to ensure viewers...
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Atom Economy
Viewers of this short video learn how atom economy is calculate, why the information is important, and when people in the industry use the calculations.
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State Symbols in Chemical Equations
First equations had numbers, then chemical equations had letters, then they added in numeric subscripts, now what is going on with the alphabetic subscripts? The sixth video in a 29-part series explains how states of matter symbols are...
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Balancing Equations Part 1
Many scholars are overwhelmed when asked to balance chemical equations because they don't understand subscripts. Directly address this common point of confusion with a video that explains how to count the number of atoms in...
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What is a Weighted Average?
Have you ever wondered why the atomic mass listed on the periodic table isn't a whole number? This video explains how weighted averages are calculated and relates the average to the relative atomic mass. Viewers are then given an element...