Question

Calculati cantitatea de fier exprimata in moli, care contine:
a)23,2 * 6,022 * 10^26 electroni
b)23,2 * 6,022 * 10^22 nucleoni
c)10,4 * 6,022 * 10^27 protoni
d)7 * 6,022 * 10^23 neutroni​
Va rog este urgent!!!

Answer 1

Răspuns:

1 atom......26e

1mol atomi.......26x6,022x10²³e

x............................23,2x6,022x10²⁶

x=892,3 moli

1 atom...........56nucleoni

1mol at...........56x6,022x10²³nucleoni

x........................23,2x6,022x10²²

x=0,041mol

1at....................26p

1mol at........26x6,022x20²³p

x..................10,4x6,022x10²⁷p

x=4000mol

1at......................30n

1mol at..............30x6,022x10²³n

x.........................7x6,022x10²³n

x= 0,23 moli

Explicație: