Question

Ce cantitate de acid carbonic (apa minerala) rezulta din 36g apa in reactie cu $CO^{2}$ ? Se dau masele atomice : Ac=12 u.a.m. , Ao= 16 u.a.m.
DAU COROANA

Answer 1

Răspuns:

M,H2CO3= 62g/mol

M,H2O= 18g/mol

1mol..............................1mol      sau

H2O + CO2---> H2CO3

18g,,,,,,,,,,,,,,,,,,,,,,,,,,,,,62g

36g.................................x

x=m=124g H2CO3

Explicație: