Question

Помогите химия срочно！

Answer 1

1. ω3 = (110*0.05 + 25*0.08)*100/(110 + 25) = (27.5 + 2)*100/135 ≈ 21.85 %

2. ω3 = (18*0.03 + 85*0.07)*100/(18 + 85) = (0.54 + 5.95)*100/103 ≈ 6.3 %