Question

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Answer 1

Răspuns:

Explicație:

6moli          xmoli

H2 + F2 = 2 HF

1mol           2moli

x= 6 . 2= 12 moli HF

MHF= 1 + 19=20-----> 20g/moli

m= n . M

m= 12moli . 20g/moli= 240 g HF

6moli            ymoli

2H2 + C  =CH4

2moli          1mol

y= 6 : 2= 3moli CH4

MCH4= 12 + 4=16--------> 16g/moli

m= 3moli .16=48g/moli