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What is the gram formula mass of K2CO3?
A. 67 g
B. 99 g
C. 106 g
D. 138 g
Find the formula mass in grams. K =39 x 2 = 78 g; C =12 x 1 = 12 g; O =16 x 3 = 48 g. Total is 78 + 12 + 48 or 138 g.
 
 
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PillBill
PillBill
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Taken: 962 times
Added: 8/11/2008
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Taggged: Chemistry, PCAT
 
 
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