Chemistry, 20.09.2020 15:01 wileycheyennem

Phollobrova YABA COLLEGE OF TECHNOLOGY
SCHOOL OF SCIENCE
DEPARTMENT OF CHEMICAL SCIENCE
2M SEMESTER EXAMINATIONS 2016/2017 SESSION
PAPER CODE:
ISTRY
TIME:2 HRS
COURSE UNIT
iting, writing or any other inscription on your question paper, except name and registration number where necessary.
ROHIBITED IN THE EXAMINATION HALL ATTEMPT 2 IN SECTION A AND 2 QUESTIONS IN SECTION B
4
T and Z are two elements which form T2Zz and TZ, molecules. If 0.1 mole
of T2Z; and TZ2 weighs 16.9 g and 10.3 g respectively. What are the
atornic mass of T and Z?
If 9.45 g of X element contains 9.03 x 1022 atoms and 0.1 mole of X2Y2
compound is 16 g. Find the atomic mass of Y element.
ne the following terms
Theoretical vield

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