Curated Video
Finding the Volume of Liquids
In this video, students learn how to find the volume of liquids by using different measuring tools, specifically graduated cylinders. They are introduced to the common units of liquid volume measurement, milliliters (mL) and liters (L),...
Curated Video
How to Convert Milliliters to Liters
In this short math video we will how to convert milliliters to liters to answer a standardized math test question. We will begin by reading the question and understanding the information given. We will draw a picture to visualize the...
Professor Dave Explains
Practice Problem: Enthalpy of Combustion
Stoichiometry for combustion? You bet! If we know about moles, we can calculate energy changes. Give it a try!
Professor Dave Explains
Practice Problem: Dimensional Analysis
In the general chemistry series we learned all about dimensional analysis, and how we can use it to convert values from one set of units to another. Let's take it a step further and get some more practice!
Professor Dave Explains
Practice Problem: Density of a Gas
If we can use the ideal gas law to find the molar mass of a gas and therefore identify the gas, what can we do with the density of a gas? Well, pretty much the same thing, it just involves one extra calculation, so let's give it a try!
Professor Dave Explains
Practice Problem: Titration Calculations
Titration is a way to do stoichiometry with acids and bases. The equivalence point tells us something about the moles of acid and base that are present in solution at that moment. And if we know one of those values, we can know the...
Professor Dave Explains
Practice Problem: Molarity Calculations
Solution concentration is measured in molarity, which is moles solute per liter of solution. Can we calculate concentration, moles, or volume, given the other two values? Sure, it's easy!
Professor Dave Explains
Practice Problem: Enthalpy of Vaporization
Can we do stoichiometry regarding phase changes? Sure! If we know how many moles of a substance we have, and the energy associated with each mole of that substance undergoing a particular phase change, we can get the energy associated...
Visual Learning Systems
Metric Conversions: Simple Metric Conversions
This program provides a conceptual foundation to help students understand how to convert between English and metric units of mass, volume, length, and temperature. The program also discusses how it is possible to convert between units of...
Professor Dave Explains
Molar Gas Volume: Stoichiometry With Gases
We know a lot about ideal gases, including how to use all of the ideal gas laws. But we haven't talked much about how to do stoichiometry with gases. As it happens, we can do stoichiometry with gases not just using molar quantities, but...
Professor Dave Explains
Predicting Precipitation With Ksp Values
Now that we know about the solubility product, it's time to learn about some applications for this concept. First, we can use this to predict whether precipitation will occur in a particular solution, and take measures to cause or...
EarthEcho International
Measuring Nitrates and Phosphates in Waterways to Prevent Dead Zones
In this video, a teacher and her student demonstrate how to test for nitrates and phosphates in water, which are major contributors to dead zones in waterways. They use equipment from Phosco to measure the levels of these nutrients in...
Curated Video
Exploring the Concept of 1 Degree and Its Role in Measuring Angles
In this video, students will learn about the concept of a 1 degree angle and how it is used to measure angles of different sizes. The video explains how a circle is divided into 360 degrees and demonstrates how angles can be decomposed...
Curated Video
KS2 Primary Maths Age 9-13 - Fraction - Problem: - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Professor Dave Explains
Calculating Ion Concentrations in Solution
We know that concentration is typically expressed with molarity, which is moles per liter. But how do we know how many moles of solute are present in solution when an ionic solid dissolves in water? It's not so simple because these will...
Curated Video
Converting Measurements to Solve Real Life Volume Problems
In this video, the teacher explains how to use knowledge of converting measurements to solve real-life volume problems.
Professor Dave Explains
Expressing Concentration by Mass Percent
We know how to express solution concentration in terms of molarity and molality, but the common public also needs to communicate concentration for certain reasons, and they don't really know about moles and things like that. What do they...
Curated Video
Problem Solving with Mass and Volume: Addition and Subtraction
This is a educational video about solving word problems involving mass and volume using addition and subtraction. The video discusses the units of mass and volume, operation word clues, and common misunderstandings about numbers. The...
Mazz Media
Units in the SI System
In this live-action program viewers will learn that the SI is an international system of standardized measurement used by scientists worldwide. Students will come to understand that the SI is made up of a list of base units defined by...
Professor Dave Explains
Molarity and Dilution
Now those pesky moles are swimming! But how much solute is there? Let's learn about how we measure concentrations of solutions.
Visual Learning Systems
Introduction to the Metric System: Metric Volume
This program introduces students to the usefulness and fun of the metric system. The concept of measurement as related to the metric system kicks off the video, followed by examples of how the metric system is used in science. Through a...
Curated Video
Solving Multiplication and Division Word Problems About Volume
In this video, the teacher explains how to solve multiplication and division word problems about volume by drawing pictures. The example given involves calculating the amount of coffee each person receives when bringing five boxes of...