Tolong bantu jawab ya .. ini soal kimia sma .kalo gak bisa diketik difoto aja jawabannya .. saya gak paham rumus ini soalnya ini materi sifat koligatif larutan. makasih mohon bantuannya
sintariyusuf
Sifat koligatif larutan "tekanan osmotik"
π = MxRxT diket: tekanan omotik π = 0.025 atm R = 0.08 volume = 2 mL = 0.002 L massa protein = 0.15 gram T = 27°C = 300 K
dit = Mr???
π=MxRxT 0.025 = M x 0.08 x 300 M = 0.025/24=0.00104167
M = n/v 0.00104167= n/0.002 n = 0.00000208
n = massa/mr 0.00000208=0.15/mr mr = 0.15/0.00000208=7.2x10^4
π = MxRxT
diket:
tekanan omotik π = 0.025 atm
R = 0.08
volume = 2 mL = 0.002 L
massa protein = 0.15 gram
T = 27°C = 300 K
dit = Mr???
π=MxRxT
0.025 = M x 0.08 x 300
M = 0.025/24=0.00104167
M = n/v
0.00104167= n/0.002
n = 0.00000208
n = massa/mr
0.00000208=0.15/mr
mr = 0.15/0.00000208=7.2x10^4