Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

Electronic cigarettes, like Juul, have been in use in the United States for over a decade now, so what’s up with the sudden spike in e-cigarette related illnesses? SPOILER: We wish we knew more.

How do we know how many atoms of each element are in a particular compound? Through clever experiments! Here let's practice using percent mass information to get the empirical and molecular formulas of a particular compound.

This video explains how to select the Amazon Redshift sort keys.
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This clip is from the chapter "Domain 4: Analysis" of the series "AWS Certified Data Analytics Specialty 2021 "Hands-On!".In this section, you will learn how to...

When it comes to eating fruits, there is an incredibly wide variety, as they come in all shapes and sizes, textures, flavors, and colors. When it comes to fruits like apples and grapes, most people know that it’s completely safe, and...

This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2HR Q6, which involves calculating compound interest. Students will understand the concept of compound interest and how it differs from simple...

In this video, we explore the theory of the hippurate hydrolysis [hippuricase] test and how to interpret the results.

For centuries purple dye was worth more than gold. The dye used to produce purple fabric came from a sea snail that only lived off the shores of modern day Lebanon. Because it was so rare, purple became associated with royalty. This is...

In this video, the teacher provides a detailed description of the element chromium. They explain its chemical symbol and atomic number, as well as its physical properties such as its gray, shiny, and hard nature. The teacher explains the...

It explains functional groups and nomenclature of organic compounds.

In this video, we learn about titanium, a strong and lightweight element with various uses and properties.

In this video, the teacher explains how to solve absolute value conjunction inequalities by writing two different inequalities. The concept of absolute value is introduced, and the process of solving absolute value equations is...

Sometimes we want to talk about chemistry without using fancy symbols, just with words. Shouldn't we be able to do that? Yes, we should! Here's how.

The video discusses the concept of relative formula mass and how to calculate it using examples of simple and more complex compounds. The periodic table is used to find the atomic masses of the elements in the compound, which are then...

As long as we're naming stuff, let's name these hydrated salts! You know, like epsom salts?

This lesson will introduce the rules for writing the names and chemical formulae of non-metal anions and metal cations, including metals with multiple positive oxidation states.

Definitions included: compound, cation, anion, IUPAC,...

This video provides an overview of lithium, its properties, and its various uses, including its use in lithium-ion batteries and in medications.

Learn the basics about the principles of green chemistry as part of the environmental chemistry topic.

Lesson on absorption and metabolism of sugar substitutes (artificial sweeteners) including aspartame, stevia, sucralose and sugar alcohols. Artificial sweeteners are compounds that simulate the sweetness of sucrose but are used in...

The video program is designed to present the serious, harmful effects of smoking and nicotine to elementary-aged children. The program provides students with a realistic picture of how cigarettes and the harmful substances found in...

In this video, we will explore the importance of magnesium, its properties, and its various applications in different industries. From being used in the aerospace and automotive industries for its lightweight and durable properties, to...

Learn the basics about using moles. This is part 1 of 3 parts, teaching you about using moles, as a part of the chemical calculations topic. Avogadro’s number describes what is known as 1 mole, or 12 g of carbon atoms. This is used in...

Learn about compound interest. We will look at how to determine the final value, initial value, interest rate and years needed. We will investigate problems compounded continuously, daily, weekly, monthly, quarterly and yearly. These...