U0L2 Check: Foundations of Chemistry

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• 79
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• 171
• 197
• 118
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• yes

• no

Naturally occurring Ni is found to have the following approximate isotopic abundance; Ni-58 68%, Ni-60 26%, Ni-62 4.0%, and Ni-61 2.0%. Calculate the average relative atomic mass of Ni to two decimal places.

Mathematical Equivalence

ON

The results taken from a mass spectrum of chlorine gas show peaks at m/z 35.00 and m/z 37.00. Given that the relative abundances of Cl-35.00 and Cl-37.00 are 77.50% and 22.50% respectively, calculate the average atomic mass of chlorine atoms.

Mathematical Equivalence

ON

Calculate the average atomic mass of Z.

Mathematical Equivalence

ON

What element is this?

Mathematical Equivalence

OFF