Răspuns :
masa atomica(A) a carbonului este 12
12gC.......1molC....6,023•10²³ atomi C
360gC......x..............y
[tex]x = \frac{360 \times 1}{12} = \frac{360}{12} = 30[/tex]
deci 30 moli C
[tex]y = \frac{360 \times 6.023 \times 10 ^{23} }{12} = 30 \times 6.023 \times 10 ^{23} = 180.69 \times 10 ^{23} [/tex]
180,69•10²³ atomi C
Răspuns:
MC=12g/mol
n=360/12=30moli C
1mol C.........12g.........6, 022x10²³atomi
360g.........x atomi
x= 360x6, 022x10²³atomi /12=180,66×10²³ atomi C