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Accounts for the following. Limit your answer to two sentences, “Atomic weights of most of the elements are fractional”

Accounts for the following. Limit your answer to two sentences, “Atomic weights of most of the elements are fractional”

Grade:upto college level

1 Answers

Kevin Nash
askIITians Faculty 332 Points
9 years ago
Sol. Most of the element found in nature exist as a mixture of isotopes whose atomic weights are different. The atomic weight of an element is the average of atomic weights of all its naturally occurring isotopes. With BaCI2+ only [Co(NH3)5 Br]SO4 reacts giving BaSO4 precipitate as [Co(NH3)5 Br]SO4 + BaCI2→ [Co(NH3)5 Br]CI2 + BaSO4 1 mol Hence, moles of Y and Z are 0.01 each.

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