Question

Exercitiul 4 si 5 va rog mult de tot

Answer 1

M,CH3COOH=6Og/mol 
c/100=md/ms;  40/1oo=md/200--->  md=80g CH3COOH
2MOL.....................................................1MOL
2CH3COOH+CaCO3--> (CH3COO)Ca+CO2+H20
2X60g.................................................22,4 L
 80......................................................V=       calculeaza !!!!

2CH3C00H+Mg---> (CH3COO)2Mg +H2
                 +MgO----->           "        +H2O
                +Mg(OH)2---->      "         +2H2O

CH3COONa    M=(2X12gC+3gH+2x16gO+23gNa)/mol=82g/mol

82g acetat......24gC.....3gH.....32gO.....23gNa
100g..............a..............b.......c...........d                          calculeaza !!!!