A cobalt(II) salt was dissolved in water and reacted with excess acetylacetone (2,4-pentanedione, CH3COCH2COCH3) and hydrogen peroxide. A green solid was formed that gave the following results for elemental analysis: C: 50.4%, H:6.2%, Co:16.5% (all by mass). Determine the ratio of cobalt to acetylacetonate ion in the product. What was the purpose of the hydrogen peroxide in the reaction

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m

Firstly, the planetary model of the atom  failed  to explain why individual atoms produce discrete  line spectra. in fact, according to rutherford's model, each individual atom should produce a  continuous  line spectrum. the second flaw to his model was the fact that electrons orbit the nucleus in a circular fashion.

My best guess is that most of the earth would freeze causing an almost ice age like catastrophe