Question

va rog mult.... macar 2...

Answer 1

4.

CH2=CH-Cl = clorura de vinil

miu = 62,5 g/mol

n = miu(polimer) / miu(monomer)

=> n = 18000 / 62,5 = 288

=> n = 30000/62,5 = 480

=> n : [288 , 480]

5.

CH2=CH2 = etena

miu = 28 g/mol

-[-CH2-CH2-]-n = polietena

n = 400

miu(polimer) = miu(monomer)xn

= 400x28 = 11200

n = 2800

miu(polimer) = miu(monomer)xn

= 2800x28 = 78400

=> miu(polimer) : [11200 , 78400]

6.

-[-CF2-CF2-]n- = politetrafluoroetena

miu = 62n g/mol

%C = 12x2nx100/62n = 38,71%

%F = 100-38,71 = 61,29%