A 11.75 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 20.95 grams of Co, and 3.578 grams of H20 are produced.

In a separate experiment, the molecular weight is found to be 74.08 amu. Determine the empirical formula and the molecular formula
of the organic compound.

Enter the elements in the order C, H, O
empirical formula =
molecular formula =

The answer is a. stable, hope i ya

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b

The law of conservation of mass states that a mass of an object or the amount of matter composed inside an object or thing will not change unless it is added or removed of the matter that is contained in the object itself.