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Cum calculezi numaul de molecule din 142g de Cl₂?

Răspuns :

Wizard48
1mol.........................2*35.5g Cl₂
x moli......................142g Cl₂
x=142*1/2*35.5=2moli

1mol....................2*6.023*10²³ atomi Cl₂
2moli.....................y
y=2*2*6.023*10²³/1=24.092*10²³ atomi Cl₂

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