Suppose that a compound z had a partition coefficient of 8.0 in ether water (more soluble in ether). if 10.0g of z was dissolved in 100ml of water, and if the water solution was extracted with two 100ml portions of ether, answer the following questions. show your calculations

a. what is the total amount of z contained in the 200ml of ether extract after the two extractions?

b. if instead of using two 100ml portions of ether, a single extraction had been carried out using one 200ml portion of ether. what weight of z would be contained in the ether solution under these conditions?

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

може ли да зареждате повече информация, моля

a is the correct answer