Question

Am o urgenta!!Completeaza tabelul aplicand formulele! Va multumesc:3

Answer 1

in tabel ai inversat cele doua coloane si anume prima coloana este md iar coloana a doua este ms...

1. md = 20g, ms = 80g,

=> m.apa = ms-md = 80-20 = 60 g

c% = mdx100/ms = 20x100/80 = 25%

2. ms = md+m.apa = 15+200 = 215 g sol.

c% = 15x100/215 = 6,98%

3. md=20 g, c% = 40%

ms = mdx100/c% = 20x100/40 = 50 g sol

m.apa = ms-md = 50-20 = 30g

4. c% = mdx100/ms = 170x100/370 = 46% (rotunjit)

5. ms = 700g, c% = 30%

=> md = msxc%/100 = 700x30/100 = 210g

=> m.apa = ms-md = 700-210 = 490 g

6. m.apa = 100g, c% = 25%

ms = md + m.apa = 100+md

=> 25 = 100md/(100+md)

=> md = 2500/75 = 33,33 g

=> ms = 33,33 + 100 = 133,33 g