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ASSIGNMENT (NOVEMBER 8, 2011)

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1 ASSIGNMENT (NOVEMBER 8, 2011) on Wed Nov 09, 2011 2:03 am

SA NOTEBOOK LANG PO ILALAGAY ITO


ASSIGNMENT:

1. NaCl

2. CO<sub>2</sub>

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2 Re: ASSIGNMENT (NOVEMBER 8, 2011) on Wed Nov 09, 2011 2:29 am

dahil mahirap ipaliwanag yan, ipapa kopya ko na lang yung gawa ko sa ngayon lang...

1.) NaCl :

1 atom of Na = 23g x 1 = 23g
1 atom of Cl = 35g x 1 = 35g
Molecular Mass = 23g + 35g = 58g

%Na = <sup>23g</sup>⁄<sub>58g</sub>x100% = 40%
%Cl = <sup>35g</sup>⁄<sub>58g</sub>x100% = 60%


2.) CO<sub>2</sub>

1 atom of C = 12g x 1 = 12g
2 atoms of O = 16g x 2 = 32g
Molecular Mass = 12g + 32g = 44g

%C = <sup>12g</sup>⁄<sub>44g</sub>x100% = 27%
%2O = <sup>32g</sup>⁄<sub>44g</sub>x100% = 73%


"x" means multiply

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