hisoblang.

55. (v16-112-5_Uch atomli nomalum fenol ortiqcha Рљ metalli bilan tasirlashganda molyar massasi 282 g/mol bolgan fenolyat olindi. Dastlabki fenol molekulyar massasini (m.a.b.) hisoblang. A)168 B)170 C)184 D)140