Sometimes we take measurements, and sometimes we're off by a little bit. How far off? Does it make sense to just use a number? Shouldn't we use something that tells us how far off we are relative to the true value? Yes we should, hence,...

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...

I bet many of you think that the ideal gas law must prohibit passing gas on the elevator. That's a very good guideline, but there are other important laws we must know! Let Professor Dave run you through the details.

In this video I explain the costs of production including fixed costs, variable costs, total cost, and marginal cost. Make sure that you know how to calculate the per unit costs: AVC, AFC, and ATC.

It explains the concept of Stoichiometry, Concentration of Solution, Mole Fraction, Molality & Molarity.

This is a tutorial on understanding the order of mathematical operators in Excel, following the PEMDAS rule (parenthesis, exponentiation, multiplication and division, addition and subtraction). The video provides examples and emphasizes...

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.



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This animated math video lesson is all about problem solving. Students will love this engaging and interactive video that takes them step-by-step on how to problem solve in a fun way.

In this lesson, students learn how to multiply polynomials by using a box to organize their calculations. By finding the total area of different size rectangles, students can understand the concept of multiplying polynomials. The lesson...

After many centuries of pure observation, it finally became time for mankind to start doing some science to figure out the dimensions of the Earth and other nearby objects. What were these early experiments? What did they tell us? Let's...

One of the best things about Newton was the way that he showed how natural phenomena abide by rigid mathematical principles. So much so that we can use mathematical equations to calculate how objects will actually behave. This equation,...