You can also calculate the cost of driving from Cincinnati, OH to Detroit, MI based on current local fuel prices and an estimate of your car's best gas mileage. If you're meeting a friend, you might be interested in finding the city that is halfway between Cincinnati, OH and Detroit, MI.
Cocoa beans contain caffeine, so the higher the percentage of cocoa in a chocolate bar, the higher its caffeine content. Likewise for coffee: Ounce for ounce, the more diluted the coffee drink, the less caffeine.
There are two types of cocoa powder: Dutch-process cocoa powder is made from cocoa (cacao) beans that have been washed with a potassium carbonate solution, to alkalize the pH and to neutralize their acidity.