Materi Stoikiometri, mohon dibantu ☺

a. CaC2 + H2O ==> Ca(OH)2 + C2H2
(belum setara)
CaC2 + 2H2O ==> Ca(OH)2 + C2H2
(sudah setara)
b. massa karbid = 32/100 x 1000 gr = 320 gr
massa = n x Mr
320 = n x 64
n = 5 mol

Volume asetilena (C2H2)
PV = nRT
2V = 5 x 0.082 x 300
V = 61.5 L