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.
This statistic depicts the age distribution of India from 2004 to 2014. In 2014, about 28.75 percent of the Indian population fell into the 0-14 year category, 65.9 percent into the 15-64 age group and 5.36 percent were over 65 years of age. Age distribution in India.India is one of the largest countries in the world and its population is constantly increasing.n 2014, about 28.75 percent of the Indian population fell into the 0-14 year category, 65.9 percent into the 15-64 age group and 5.36 percent were over 65 years of age. Age distribution in India.