If you have a 4.0 g of radioactive substance left after 4 half-lives have passed then how much did you have originally?
1 answer:
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Answer: 103.8 g of , 0.65 moles of
Explanation:
To calculate the moles :
Thus is the limiting reagent as it limits the formation of product and
is the excess reagent.
According to stoichiometry :
3 moles of produce = 2 moles of
Thus 0.975 moles of will produce=
of
Mass of
Thus 103.8 g of will be produced.
Answer:
Please find equations in the attachment file.
Explanation:
