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<span>To find: Sample error in percent
Solution:
Formula:
((Experimental value-theoretical value)/theoretical value)*100
where, theoretical value = 100°c
and, experimental value = 102°c (sample 1) 99.2°c (sample 2)
Sample error (in percentage) when boiling level was 102°c = ((102°c-100°c)/100°c)*100 = 2%
Sample error (in percentage) when boiling level was 99.2°c = ((99.2°c-100°c)/100°c)*100 = -0.8%</span>
Answer:- molecular formula is
.
Solution:- Percentages are given from which we will calculate the moles of each element.
moles of Pd =
= 0.445 mol Pd
moles of O =
= 1.78 mol O
moles of C =
= 1.78 mol C
moles of H =
= 2.66 mol H
Now we divide the moles of each by the least one of them. The least one is 0.445. So, let's divide the moles of each by 0.445.
Pd =
= 1
O =
= 4
C =
= 4
H =
= 6
So, the molecular formula of the compound is
.