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Conversion of Millilitres and Litres
This nugget explains the conversion of millilitres into litres.
Curated Video
GCSE Secondary Maths Age 13-17 - Number: Capacity - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Professor Dave Explains
Practice Problem: Calculations Involving pH and Ka
We know a bit about acids and bases, including the definitions of pH and pKa, as they relate to an acid-base equilibrium. If we have a weak acid and its concentration, as well as the pH of the solution, can we calculate the Ka for the...
Curated Video
Use Metric Conversions to Solve a Real World Problem
In this short math video we will answer a standardized math test question by using metric conversions to solve a multi-step real world problem. We will begin by identifying what the question is asking us to do. We will then draw a...
Curated Video
How Many Bottles (Divide whole measurements of liquid volume to make an estimate using groups.)
In some situations, we want to estimate the volume of liquid in a container that is not marked by a liter scale. We can use a known benchmark, such as a bottle of milk that contains about 1-liter of liquid and then see how many bottles...
JJ Medicine
High Red Blood Cells (Erythrocytosis) | Causes, Signs and Symptoms, and Treatment
Lesson on Erythrocytosis: Causes, Signs and Symptoms and Treatments. Erythrocytosis is a condition of increased red blood cell mass indicated by increases in hemoglobin and hematocrit. Erythrocytosis is either relative or absolute....
TMW Media
Density
This program covers the very important topic of density as it relates to chemistry. We begin by discussing mass and volume and conclude by showing that the ratio of these quantities (mass per unit volume) is a very useful way to compare...
Professor Dave Explains
IIT/JEE Chemistry Practice #34: Equilibrium Constants
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Curated Video
Represent Division as Fractions (Example)
Use equations to solve word problems involving division of whole numbers leading to answers as fractions.
Professor Dave Explains
IIT/JEE Chemistry Practice #22: Density of a Gas
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #3: Empirical/Molecular Formula
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
IIT/JEE Chemistry Practice #11: Moles/Molarity
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
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...