presleythill presleythill

29-07-2020
Chemistry

contestada

Mr. Avogadro started with 5.14x10^22 atoms of Pa-234. Ten days later Mr. Avogadro calculated the original sample had only 6.43 X 10^21 atoms of Pa-234. What's the half life of Pa-234? PLEASE HELP WILL MARK BRAINLIEST!!

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manov9446950838 manov9446950838

10-08-2020

6.022×10^23 i think this is the answer

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michi91 michi91

15-09-2020

6.022x10^23 is Avogadro’s number. The question is asking for the half life of Pa-234. Avogadro’s number is part of what you would use to solve for the half life of Pa-234. The half life of Pa-234 is about 1.17 minutes. Half life will have time as it’s units such as minutes, hours, days, weeks, and months.

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