Video: Combine the contents of multiple cells into one cell. Applies To: Excel 2010 More... Less. Learn how to combine separate columns of information, such as first and last names, into a single column.
A cup of instant coffee contains about 40 - 120 mg caffeine. A cup is usually understood to contain 150 ml (5 oz in the United States), but the range of measurements is so wide that, for most individuals, it is inaccurate to use these figures as a basis for calculating the exact amount of caffeine consumed in a day.
His research found that 16 ounces of caffeinated coffee from Starbucks had 100 milligrams more of caffeine than the same serving size from Dunkin' Donuts. The study also found that Starbucks' caffeinated breakfast blend, purchased at a Florida store, varied greatly in its caffeine content from day to day.