Mole Conversions Tutorial: how to convert mole – mass, mole – particle, mass – particle problems

Welcome to a mad scientist production of… Mole Conversions, in which we will take a look at how to convert from mass and particles to moles, using dimensional analysis! First let’s …

How to Calculate your BMI (US Customary system of measurement)

If you’d like to try calculating your BMI on your own, just follow this simple formula. Your weight (in pounds) x 703, divided by your height squared. So for example, my …

Unit Conversion & Significant Figures: Crash Course Chemistry #2

2640 lumens. 1 foot. 2.3 kilograms. 9 volts. Aaah! I just closed the circuit with my tongue and I felt all 9 of the volts. So what do all these things …

How We’re Redefining the kg

What do I have to push, sub-basement? >>Woman: Sub-basement. [Buzzing safety alarm] I’m at the National Institute of Standards & Technology in Washington D.C. and I’m going to the sub-basement. It’s …

Unit Conversion (Example)

In this problem we are given density of an oil and we want to know the mass of three barrels of oil. We want that mass in kg and it tells …

Math in Science: Comparing Metric Units of Mass and Weight

In this tutorial, we’ll discuss grams as the basic unit used to measure mass, and, using everyday objects as examples, try to give you an idea of the size and scale …

Is America Actually Metric?

I’m here at the National Institute for Standards and Technology, and I’m about to see some of the original kilogram standards. Is that right? Patrick: You are, you are. When were …

Measurements of Mass: Dimensions and Units

Now let’s talk about mass. When we look at measurements of mass, we want to keep in mind its dimensions and its units. Again, dimension is what type of measurement you’re …

Kilogram | Wikipedia audio article

The kilogram or kilogramme (symbol: kg) is the base unit of mass in the International System of Units (SI). Until 20 May 2019, it remains defined by a platinum alloy cylinder, …

The Mass Vs Weight Song – NOW WITH CLOSED CAPTION SO YOU CAN SING ALONG! Mr. Edmonds –

Mass versus weight Two measures for an object. They’re not the same let’s all see why! To determine the mass … we use a balance to do it. We use a …