Răspuns:
ai calculat masa de Caco3 pur m,p=450g
M,CaCO3=100g/mol
2mol..................................................100g........1mol
2CH3-CH(CH3)-CH2-COOH + CaCO3--> H2+(CH3-CH(CH3)-CH2COO)Ca
x.....................................................450g.................y
x= 9mol acid
c,m= niu/V---> V=9/2 L= 4,5 L
Y= 4,5mol H2
pV=niuRT
2xV= 4,5x0,082x(273+20).......calculeaza V !!!!!
Explicație: