It’s important to realize that volume is something that isn’t a set amount. It’s something that can be negotiated. Once you view concentration this way, … Read More

But how do we know? That is where every solution prep starts. You take your solid, drop it on balance, read mass, and then calculate … Read More

The molarity of proteins becomes abstract until you’re facing a cuvette with some material in it and you see that one milligram per milliliter doesn’t … Read More

On the surface, pH seems like nothing more than a value between 0 and 14 on a logarithmic scale. That makes it seem abstract. So … Read More

This is a typical scenario: You put a probe into some hot water from your boiler. Your meter indicate 4.2. You look at it, like … Read More

Because the pH scale is written with whole numbers ranging from zero to fourteen, it’s easy to assume that the scale is linear. That kind … Read More

There’s a certain nervousness when it comes time to check the pool water. You stick test strip in, read results, and instead of getting directions … Read More

Ah, yes,” you say, “the thirty-seven percent hydrochloric acid, whose label only vaguely describes how many moles of reactants is present in the bottle.” If … Read More

Suppose you’re looking at a bottle of sulfuric acid. The label indicates that it is two molar. For purposes of your titration, you want to … Read More

The volumetric flask is filled with a chemical. You’ve measured out how much. You’ve filled up the flask with water so that meniscus rests on … Read More