Chemistry, asked by dasshruti923, 8 months ago

An element 'X' has two series with atomic masses 42 and 44.If their percentage abundance in nature is 60% and 40 % respectively then find it's average atomic mass



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Answers

Answered by Ravigupta10
0

hello everybody solve it

Answered by ashokyadav1715
1

x=2%

Explanation:

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Chemistry

Structure of Atom

Isobars and Isotopes

An element X have three iso...

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Asked on December 20, 2019 by

Mona Bangale

An element X have three isotopes X

20

,X

21

and X

22

. The percentage abundance of X

20

is 90% and its average atomic mass of elements is 20.18. The percentage abundance of X

21

should be ______________.

MEDIUM

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ANSWER

Average atomic mass =

100

∑% abundance × A.M

20.18=

100

20×90+x×21+(10−x)22

2018=1800+21x+220−22x

x=2020−2018

x=2%

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