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3) Cd3(PO4)2 + (NH4)2S ---> 4) Co(OH)3 + HNO3 ---> 5) AgNO3 + KCl --->
 * __EMPIRICAL FORMULA__**

1. The molecular formula of the antifreeze ethylene glycol is C 2 H 6 O 2. What is the empirical formula?

2. A well-known reagent in analytical chemistry, dimethylglyoxime, has the empirical formula C 2 H 4 NO. If its molar mass is 116.1 g/mol, what is the molecular formula of the compound?