Question

Va rog urgent vreau rezolvat 35 de puncte,coroana si 5 stele!
Pls macar ex 1 cine știe

Answer 1

A) 12%

ms = 100 g => md = 100x12/100 = 12 g

B) 20%

=> md = 200x20/100 = 40 g

C) 24,5%

ms = 45x100/24,5 = 183,7

d.

ms.A = 100x100/12 = 833,33 g

ms.B = 100x100/20 = 500 g

ms.C = 100x100/24,5 = 408,2 g

avem ms = 200g c% = 12%

=> m.zahara = md = msxc%/100 = 200x12/100 = 24 g

ms = 400g => md = 400x12/100 = 48 g

ms = 200/2 = 100g , md = 100x12/100 = 12g

ms.final = 100+36 = 136g, md = 136x12/100 = 16,32 g

m.apa = m, c%.final = 12/2,5 = 4,8%

=> ms.final = ms+m

=> 4,8 = 24x100/(200+m) => m = 300 g apa adaugata

omogen

fizic ,

solubilitate

gradul de faramitare

diluarea

nesaturata

solutie

scaderea temperaturii

solvat

solutie

solida

12 g

182 g

ms = 182+12 = 200 g

c% = mdx100/ms = 12x100/200 = 6%