a.
CH3-CH2-CH2-COOH
b.
CH3-(CH2)2-COOH + Na --> CH3-(CH2)2-COONa + 1/2H2
CH3-(CH2)2-COOH + HOC2H5 <==> CH3-(CH2)2-COOC2H5 + H2O
d.
ms = 200g, c% = 90%
stim ca c% = mdx100/ms
=> md = msxc%/100
= 200x90/100 = 180 g ac. butanoic
conditiile in care au fost masurat h2 obtinut sunt cele normale
180 g V L
CH3-(CH2)2-COOH + Na --> CH3-(CH2)2-COONa + 1/2H2
88 0,5x22,4
=> V = 180x0,5x22,4/88 = 22,91 L H2 in c.n.
