tolongg sama caranya kak

36.
cari kalor pembakaran :
m / Mr x kalor pembakaran
88 / 44 x 500 = 1000 J
cari kalor jenis
q = m x c x delta T
1000 = 100 x c x 4
c = 2.5 J/g/C

37.
mt = mo x (1/2)^(t / t1/2 )
3.125 = 100 x (1/2)^(100 / t1/2)
1/32 = (1/2)^100/ t1/2
(1/2)^5 = (1/2)^100/ t1/2
5 = 100/ t1/2
t = 20 hari

catatan :
t1/2 = waktu paruh
mt = massa akhir
mo = massa awal