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anonymous
 one year ago
Use the information for the isotopes of X to calculate the average atomic mass of X, and identify the element.
Isotope Abundance Mass (amu)
6X 7.5% 6.015
7X 92.5% 7.016
I'm kinda confused :/
anonymous
 one year ago
Use the information for the isotopes of X to calculate the average atomic mass of X, and identify the element. Isotope Abundance Mass (amu) 6X 7.5% 6.015 7X 92.5% 7.016 I'm kinda confused :/

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Zale101
 one year ago
Best ResponseYou've already chosen the best response.1\(Average ~atomic~ mass~ of~ an ~element\) = \( (Abundance~percentage_1*Mass~of~Isotope~ 1)\) + \((Abundance~percentage_2*Mass~of~Isotope~ 2))\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So would I have to calculate that like 7.5 * 6.015, and the same for the other one?

Photon336
 one year ago
Best ResponseYou've already chosen the best response.2You would add the two masses together

Zale101
 one year ago
Best ResponseYou've already chosen the best response.1Correct. You'll add it with Isotope 7x to get the average atomic mass of the element

Photon336
 one year ago
Best ResponseYou've already chosen the best response.2but first you need to multiply the atomic mass by the % abundance I believe

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it's 45.1125 + 648.98 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Photon336 would it be 694.0925?

Photon336
 one year ago
Best ResponseYou've already chosen the best response.2@Zale101 6X and 7X are just the names of the isotopes right?

Photon336
 one year ago
Best ResponseYou've already chosen the best response.2yeah.. so convert 7.5% to decimal form which is 7.5/100 then you multiply this by 6.015 amu

Photon336
 one year ago
Best ResponseYou've already chosen the best response.2remember @flatouthero its' a percentage

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you both for your help!
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