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.
The active ingredient in coffee is caffeine, the most commonly consumed psychoactive substance in the world . The caffeine content in a cup of coffee is highly variable, ranging from 50 to 400+ mg per cup. A small home-brewed cup of coffee could contain 50 mg, while a big 16 oz Starbucks grande can contain over 300 mg.