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 image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.