Which element has this electron configuration? astatine bromine chlorine fluorine
2 answers:
Unfortunately you did not specify the electronic configuration in the question, however since one of the answers must be a halogen, i took the liberty to attach an image with the configuration (both the simple numeric and spdf form) for all the halogen and all you have to do is match the electronic configuration you have in your question to the one in the table attached and you can then deduce the answer.
Hope this helps.
Hope this helps.
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Answer : The number-average molecular weight is, 97500 g/mol
Explanation :
First we have to calculate the molecular weight of isobutylene and isoprene.
The molecular formula of isobutylene and isoprene is, and
Molecular weight of = 4(12 g//mol) + 8(1 g/mol) = 56 g/mol
Molecular weight of = 5(12 g//mol) + 8(1 g/mol) = 68 g/mol
Now we have to calculate the average repeat molecular weight.
Average repeat molecular weight =
Average repeat molecular weight = 65 g/mol
Now we have to calculate the number-average molecular weight.
Number-average molecular weight = Average repeat molecular weight × Degree of polymerization
Number-average molecular weight = (65 g/mol) × (1500)
Number-average molecular weight = 97500 g/mol
Thus, the number-average molecular weight is, 97500 g/mol