Question

cuantos atomos de hidrogeno estan preentes en 25.6 gramos

Answer 1

m = 25.6 g de urea
Mm urea = 60 g/mol
[(NH2)2CO] = urea

atomos H= 25.6 g Urea x 1 mol urea  x  4 mol H     x    6.022 X 10²³ átomos
                                         ```````````````   ```````````        ````````````````````````````
                                         60 g urea     1 mol urea           1 mol H

átomos de H = 1.027 x 10²⁴