Question

Determinați raportul atomic și rapotul de masă pentru:
- NaCl (clorură de sodiu)
- CaO(oxid de calciu)

- Ca(OH) 2 (hidroxid de calciu)
- Al 2 O 3 (oxid e aluminiu)
- H 2 SO 4 (acid sulfuric)

- FeSO 4 (sulfat de fier)

Answer 1

Răspuns:

in Nacl the na is 31.4 precent

the cl is 68.6 precent.

the O is 27.5 precent

the ca is 71.5 precnent

Explicație:

11 grams of soduim out of 28 grams from the whole mole is 31.4 precent

17 grams of the cl out of the 28 of the whole molecule is 68.

8 grams from the 28 is 27.5

20 grams from the 28 is 71,5