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Littlebird
 one year ago
Natural silver ore contains only two different isotopes, silver‐107 and silver‐109. How many atoms of silver‐107 are there in a 0.156 g sample of natural silver metal?
Littlebird
 one year ago
Natural silver ore contains only two different isotopes, silver‐107 and silver‐109. How many atoms of silver‐107 are there in a 0.156 g sample of natural silver metal?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[0.156~g \times\frac{ 1~mol }{ 107~g }\times \frac{ 6.022 \times 10^{23}~atoms}{ 1~mol }\]

Littlebird
 one year ago
Best ResponseYou've already chosen the best response.0I can't believe I didn't see this! :P

Littlebird
 one year ago
Best ResponseYou've already chosen the best response.0But why doesn't isotope 109 affect the problem? Because I thought the problem implied that both isotopes are in the sample, and I have to figure out how much of the .156 g is isotope 107.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think isotope 109 is a detractor. The problem doesn't give any information about it, other than its existence. There's no way to include it in the calculation that I can see
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