Elements X and Y form a compound in which there is 1 atom of X for every 4 atoms of Y. when these elements combine, it is found that 1.00g of X combines with 5.07g of Y. when 1.00 g of X combines with 1.14 g of O, I it forms a compound containing 2 atoms of O for each atom of X. Calculate the atomic mass of Y.
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Answer
Molecular formula =XY
2
Z
3
10
23
, atomic weight of Y=y
Molecular mass =60+240+2y
=300+2y
1.15×10
23
atoms of Y≃2 mol of Y
∴ Limiting agent is Z .
∴ No. of moles of compound =
3
0.03
=0.01
∴ Molecular mass =
0.01
4.40
=440
⇒300+2y=440
⇒y=70
Answered by
0
Answer:
Molecular formula =XY2Z3
1023 , atomic weight of Y=y
Molecular mass =60+240+2y
=300+2y
1.15×1023 atoms of Y≃2 mol of Y
∴ Limiting agent is Z .
∴ No. of moles of compound =30.03=0.01
∴ Molecular mass =0.014.40=440
⇒300+2y=440
⇒y=70
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