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.
Multiply square feet by 0.093. Measure the length and width in feet and multiply them together to get a result in square feet. Since 1 square foot = 0.093 square meters, multiply your result by 0.093 to get the answer in square meters instead. Square meters are bigger than square feet, so it will take fewer of them to cover the same area.