Question

Ma puteti ajuta? Jajxuehwgfyruwidhhdhdhf

Answer 1

Răspuns:

1.

100g Mg........90g Mg pur

300g Mg........xg Mg pur

x=300×90/100=270=g Mg pur

MMg=24g/mol

MMgCl2=24+2×35,5=95g/mol

24g................95g

Mg + Cl2 => MgCl2

270g...............yg

y=270×95/24= calculează

n=m/M= 270/24=11,25 moli Mg

1mol...............1 mol

Mg + Cl2 => MgCl2

11,25 moli......z moli

z=11,25×1/1=calculează

2.

1mol.................2moli

N2 + 3H2 => 2NH3

6 moli...............x moli

x=6×2/1= calculează