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ilovebmth1234
 one year ago
Thallium consists of about 30% Th203 and 71% Th205. The relative mass will be closest to what value?
Question 5 options:
A)
201
B)
202
C)
203
D)
204
ilovebmth1234
 one year ago
Thallium consists of about 30% Th203 and 71% Th205. The relative mass will be closest to what value? Question 5 options: A) 201 B) 202 C) 203 D) 204

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ilovebmth1234
 one year ago
Best ResponseYou've already chosen the best response.0@BioHazard9064 @arronq

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2This involves some simple math. The molar mass of an element (as listed on the periodic table) accounts for all the isotopes of that element in a weighted average according to their abundance in nature. \(\sf Molar~mass=\sum(abundance~~\%*m_{isotope~i})\) \(\sf Molar ~mass_{Th}=0.3*m_{Th203} + 0.71*m_{Th205} \)

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2So all you do is multiply the abundance of each isotope by it's respective mass then add these values together.

aaronq
 one year ago
Best ResponseYou've already chosen the best response.2The mass is indicated after the dash. For example, the mass of Th203 is 203 lol

ilovebmth1234
 one year ago
Best ResponseYou've already chosen the best response.0i got a couple more questions are you busy?
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