Jawabanmu

2014-07-16T19:37:30+07:00
V (STP)= 0,5 * 22,4 = 11,2

V = gr/Mr
11,2 = gr/44
gr = 492,8 gram

maaf kalo salah
2014-07-16T20:03:05+07:00
Gram = mol x Mr = 0,5 mol x (12+2x16) = 22 gram