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natima [27]
3 years ago
6

Half life of iodine isotope for treating thyroid cancer is 8 days. A patient was exposed to 100 mg. What will be concentration o

f iodine in patient’s body after 32 days?
Chemistry
1 answer:
Nonamiya [84]3 years ago
6 0

Answer:

6.25 mg

Explanation:

32 days equals 4 half lives for the iodine, since one half life is 8 days. So, the first half life goes from 100 to 50 mg, second from 50 to 25, third from 25 to 12.5, and fourth from 12.5 to 6.25

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Bronsted-Lowry base compounds are those that can accept protons

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5 0
3 years ago
What is the pressure of 0.5 mol of nitrogen gas in a 5 L container at 203 K
vlada-n [284]

Answer:

=1.666 liters

Explanation:

1 mole of a has at standard temperature and pressure occupies a volume of 22.4 liters.

0.5 moles of nitrogen occupy a volume of (0.5 moles×22.4 dm³/mol)/ 1

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Let us take the conditions under standard conditions as the reference, with the subscript 1 and the conditions under the 5L container to be scenario 2 with subscript 2.

Therefore P₂ =P₁V₁T₂/T₁V₂

Substituting for the values we get:

P₂= (1 atm× 11.2L ×203K)/ (273K×5L)

=1.666 atm

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4 years ago
Why would a biological stain be used? (Give examples of stains and their uses)
Allushta [10]

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2 years ago
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Raw:

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