The potential difference between two points in an electric circuit is the work done when a coulomb of charge passes between the points. You can calculate the size of a potential difference using this equation: V = W Ã· Q. 1  V is the potential difference in volts, V. 2  W is the work done (energy transferred) in joules, J.
Thanks for you help. Yikes, now you got me thinking! I went and my bottle of wilton vanilla and sure enough, it was like I went to the medicine cabinet and opened the bottle of rubbing alcohol! Extract is about 35% or so alcohol, so it may smell like alcohol - but the primary aroma should be vanilla.
Baker's Tip: Make Your Own Vanilla Extract. If you bake much, you know that vanilla extract can disappear pretty quickly around the kitchen. You use it in cakes, cookies, morning pastries, and even ice cream. So now instead of rushing out to the store mid-recipe, we're determined to start making our very own.