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calculate the percentage of composition by mass of oxygen in Al(HCO3)3
a.22.86%
b.68.57%
c.78.26%
d.40.50%

Sagot :

PHTHARTICIN PHTHARTICIN

B. 68.57

Explanation:

Composition of Al(HCO3)3

Atomic Mass Mass Percent

Al 26.9815 g/mol 12.8464%

H 3.0238 g/mol 1.4397%

C 36.0321 g/mol 17.1555%

O 143.9946 g/mol 68.57%

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