Question

va rog cine ma ajuta la problema? 20g S reactioneaza cu Al (aluminiu).Ce cantitate de A2,S3 rezulta. masa= As=32,A
va implorrrr ajutati ma

Answer 1

Răspuns:

MS=32g/mol

MAl2S3=2×27+3×32=150g/mol

3×32g 150g

2Al + 3S => Al2S3

20g xg

x=20×150/3×32=calculează.

Answer 2

Răspuns:

MS=32g/mol

MAl2S3=2×27+3×32=150g/mol

3×32g 150g

2Al + 3S => Al2S3

20g xg

x=20×150/3×32=31,35g