Question

Densitatea ma intereseaza cum o pot afla

Answer 1

ro = p = m / V, T = 273 + toC = 353 K

n = nr. moli = m / M.moleculara

P*V = n*R*T => P *M.molec. = (m/V)*R*T => P*M.molec. = p*R*T

=> M.molec = p*R*T / P = 1,589 * 0,082 * 353 / 1

=> M.molec = 46 g/mol

=> nr. atom Element = % * M.molec / A element * 100

=> C = 52,18*46/12*100 = 2

    H = ............ = 6

    O = ............ = 1

=> Fm = C2H6O

=> corecta = C