6tons of pig ovaries were required to extract 13.0 mg of estrone. assuming complete isolation of the hormones was achieved, calculate the mass percentage of estrone in the original tissue.

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

Which of the following statements concerning the influence of culture on ethnic identity formation is accurate? a. one will reject ethnic identity if cultural stereotypes are encountered. b. if one’s ethnic city is different from the dominant cultural group, then one’s ethnic identity you will become weekend. c. if an the ethnic group is excepted by dominant culture, then ethnic identity formation can be a difficult process. d. similarity to the dominant culture can determine how easy it is for one to except ethnic differences.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5