chemistry a level
i cant find any things about this question online:
the relative atomic mass of silicion is 29.109. it consists of 3 isoptes 28, 29 and 30Si. it contains 92.2% 29Si. find the percentage compositio f mass of 29Si in silicon.
i know the method but i cant get the right answer, please help
the relative atomic mass of silicion is 29.109. it consists of 3 isoptes 28, 29 and 30Si. it contains 92.2% 29Si. find the percentage compositio f mass of 29Si in silicon.
i know the method but i cant get the right answer, please help
Original post by miac0328
i cant find any things about this question online:
the relative atomic mass of silicion is 29.109. it consists of 3 isoptes 28, 29 and 30Si. it contains 92.2% 29Si. find the percentage compositio f mass of 29Si in silicon.
i know the method but i cant get the right answer, please help
the relative atomic mass of silicion is 29.109. it consists of 3 isoptes 28, 29 and 30Si. it contains 92.2% 29Si. find the percentage compositio f mass of 29Si in silicon.
i know the method but i cant get the right answer, please help
This is a weighted average calculation.
What have you tried so far?
Imagine that you have 100 atoms, how many of each isotope will there be?
What will be the total mass of these 100 atoms
What is the average mass of one atom?
Although I know that you are very busy at the moment, maybe you would like to help with this question too, @5hyl33n.
Original post by Kallisto
Although I know that you are very busy at the moment, maybe you would like to help with this question too, @5hyl33n.
I will do once OP returns with their working. At the moment, I can't really add anything apart from what charco has already said.
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