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.
However, not all of what is sold in Mexico as vanilla extract is what it purports to be, a solution derived from soaking actual vanilla beans in alcohol. In Mexico (as in the U.S. and elsewhere) synthetic or imitation vanilla, liquids artificially made to look and taste like the real thing, are also available.owever, not all of what is sold in Mexico as vanilla extract is what it purports to be, a solution derived from soaking actual vanilla beans in alcohol. In Mexico (as in the U.S. and elsewhere) synthetic or imitation vanilla, liquids artificially made to look and taste like the real thing, are also available.