The utility of A-values can be generalized for use outside of cyclohexane conformations. A-values can help predict the steric effect of a substituent. In general, the larger a substituentâs A-value, the larger the steric effect of that substituent. Methyl has an A-value of 1.74 while tert-butyl has an A-value of ~5. Because the A-value of tert-butyl is higher, tert-butyl has a larger steric effect than methyl. This difference in steric effects can be used to help predict reactivity in chemical reactions.
Turner Beach in Antigua. Antigua (/Ã¦nËtiËÉ¡É/ an-TEE-ga), also known as Waladli or Wadadli by the native population, is an island in the West Indies. It is one of the Leeward Islands in the Caribbean region and the main island of the country of Antigua and Barbuda. Antigua and Barbuda became an independent state within the Commonwealth of Nations on 1 November 1981.
Coffees grown on the Fraijanes Plateau are known for their full body, distinct acidity, and soft aroma. The quality of coffees grown in this region has been compared to Guatemala Antigua Coffee. Antigua Coffee Growing Region. Antigua is a coffee growing region in Guatemala and is also used as a market name. Surrounded by three volcanoes, the valley that surrounds the old capital of Guatemala Antigua has a ideal soil and an ideal coffee growing climate which produces these distinguished coffees. Guatemala Antigua coffees are Strictly High Grown / Strictly Hard Bean coffees grown at elevations from 4,600 feet to 5,600 feet where the temperatures range from 66 to 71 degrees Fahrenheit (19 to 22 Celsius).