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Calculate the percent composition by mass of each element in LiClO2

Question

Calculate the percent composition by mass of each element in LiClO2

check_circleAnswer
Step 1

The molar mass of the compound LiClO2 can be calculated as follows:

Atomic mass of Li = 6.9
Atomic mass of C1 35.5
Atomic mass of of O = 16
Molar mass of of 0, = 16x2
= 32
Now
Molar mass of LiCIO2 (6.9+35.5+32)
= 74.4 g/mol
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Atomic mass of Li = 6.9 Atomic mass of C1 35.5 Atomic mass of of O = 16 Molar mass of of 0, = 16x2 = 32 Now Molar mass of LiCIO2 (6.9+35.5+32) = 74.4 g/mol

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Step 2

The percent composition by mass of each element in Li...

Atomic mass of Li
100%
% Li =
Molar mass of compound
6.9
-x100%
74.4
=9.3%
Atomic mass of Ci
% Cl=.
-x100%
Molar mass of compound
35.5
-x100%
74.4
47.7%
Molar mass of O
%O=
-x 100%
Molar mass of compound
32
:100%
74.4
=43.0%
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Atomic mass of Li 100% % Li = Molar mass of compound 6.9 -x100% 74.4 =9.3% Atomic mass of Ci % Cl=. -x100% Molar mass of compound 35.5 -x100% 74.4 47.7% Molar mass of O %O= -x 100% Molar mass of compound 32 :100% 74.4 =43.0%

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