Methyl cation, anion, and radical. Methyl cation. The methylium cation (CH3+) exists in the gas phase, but is otherwise not encountered. Some compounds are considered to be sources of the CH3+ cation, and this simplification is used pervasively in organic chemistry.
The square foot (plural square feet; abbreviated ft 2 or sq ft) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States and partially in Canada, United Kingdom, Hong Kong, Bangladesh, India and Pakistan. It is defined as the area of a square with sides of 1 foot.
How to Calculate Square Footage. Square footage is the area in square feet. The easiest way to calculate it is by measuring the length and width of your area in feet then multiplying those two numbers together to get the area in feet squared.This assumes you have a rectangular area such as a room and, for example, you want to calculate square footage for flooring or carpet.If your measurements are in different units than feet, first convert those values to feet, then multiply them together to get the square footage of the area. 1  Measure. 2  Measure your area.his assumes you have a rectangular area such as a room and, for example, you want to calculate square footage for flooring or carpet. If your measurements are in different units than feet, first convert those values to feet, then multiply them together to get the square footage of the area. 1  Measure. 2  Measure your area.