Obviously the more product you have and the closer the impurities are, the more silica gel you will need. 1  A good rule of thumb is: 2  for difficult separations (Î´CV â¤ 1) use up to 100 g (~200 mL) of silica gel per gram of compound to be purified (1% load)
Median age at first marriage for American Indian and Alaska Native men and women age 15 to 54, respectively, in 2010. For the population as a whole in this age range, the respective numbers were 28.7 and 26.7 years. The difference in the median age at first marriage between American Indian and Alaska Native women and women overall is not statistically significant.
Factbook Countries India Demographics. Median age: total: 27 years. male: 26.4 years. female: 27.7 years (2014 est.). Definition: This entry is the age that divides a population into two numerically equal groups; that is, half the people are younger than this age and half are older.It is a single index that summarizes the age distribution of a population.emale: 27.7 years (2014 est.). Definition: This entry is the age that divides a population into two numerically equal groups; that is, half the people are younger than this age and half are older. It is a single index that summarizes the age distribution of a population.